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a herbarium, as the name suggests, is a place where plant specimens are collected. properly preserved specimens will not be destroyed for hundreds of years, and they seal the memory of the earth belonging to all mankind. now, the herbarium under duke university in the united states has decided to close, and nearly one million specimens have been displaced.behind the memories that have nowhere to go is a long-marginalized discipline and a group of scholars who are gradually dying in silence.

kathleen pryer paused.

the lights were dim. in the crowded room, rows of lead-gray iron cabinets were silent. the cabinets, which were as tall as a person, were filled to the brim, reminiscent of a library: like stacked bookshelves, with book spines arranged in order. however, the shelves were not filled with books, but with various colored paper-bound wax leaf specimens.this is the duke university herbarium.

pryor has spent most of her life here. 34 years ago, she came here to study for a doctorate, fell in love, and became a biology professor. for the past nearly 20 years, she has been the curator here.

soon, there will be nothing left here except an empty shell of memories. she received an email from susan alberts, dean of the college of natural sciences, informing her that the duke herbarium will be closed and the collections in the museum will be vacated within two to three years.

two to three years is the countdown for the life of this specimen museum. it took a century to build it into its current state.in 1921, when duke university was still called trinity college, botanist hugo l. blomquist brought the first batch of specimens in shoe boxes, marking the beginning of the museum's collection. today, the museum has more than 825,000 plant specimens, ranking second among private universities in the united states, second only to harvard university. in addition to vascular plants such as flowers and trees, there are also the nation's leading collections of mosses, algae, lichens and fungi. evolutionary biologist pamela soltis once lamented that the depth and richness of its collections are outstanding - "duke has always been highly respected as the birthplace of global botanical research."

but now, player can only watch the glory fade away and history end in his own hands. "it's unreasonable. i have my golden years here. i don't want to hand over my hard work to others... why?"

quagmire

the crisis had been foreshadowed. before the shoe dropped, the specimen museum was already in trouble.

the first problem is lack of space.the specimen museum is located in the biological sciences building, which was built 60 years ago. it houses about 400,000 specimens. as the number of collections grew, the total storage area of ​​6,000 square feet could no longer meet the needs. new collections had to be packed into specimen boxes and placed in the corridor outside the room. by 2005, more than 500 boxes of specimens had filled all five floors of the building.

these specimens were once moved off-campus for storage, but in hindsight, this was a bad decision. pryor recalled that the collection suffered a terrible flood off-campus, "black mold everywhere." moisture and mold are fatal to specimens - under high humidity conditions, fungal invasion can cause plant tissue to rot, blurring its features, destroying its appearance, and losing its research value.

in 2006, pryor secured an $800,000 grant and additional space to bring the specimens back to duke. but it was only a temporary respite. now, space is running out again, and the backlog of specimens waiting to be stored is growing.

not only that, the biological sciences building has been in disrepair for a long time, and the outdated hvac often leaks, and the specimens already stored are also in danger. "the biological sciences building and some other old buildings on campus... have been neglected." rytas vilgalys, a biology professor at duke university, said, "they have serious water damage problems... i think everything is on the verge of collapse."

currently, specimens are stored in two locations: the biological sciences building and the plant growth room. | kathleen pryer

in addition, decentralized leadership is also a problem.including pryor, there are five people in charge of the specimen museum. they are independent of each other and are in charge of different parts of the collection. although these five people are all professors of biology, their subdivisions of research are not the same, and they have different opinions on the development direction of the specimen museum. the differences have been difficult to reconcile for many years. the specimen museum has been constantly in brownian motion under the struggle of various parties, and has been criticized in the school.

in order to improve the situation of the herbarium, pryor ran around. in 2022, her efforts seemed to have a glimmer of hope. emily bernhardt, the chair of the biology department, told her that the renovation of the biological sciences building was in "early planning" and the school had learned that most of the collections would need to be temporarily relocated. bernhardt asked pryor to draw up a "strategic plan" to plan the future development of the herbarium.

with the assistance of deputy director paul manos, pryor completed the plan. in this 18-page report, she detailed the troubles facing the herbarium. pryor proposed that the herbarium "needs to break the old and rigid model of the past 70 years and become more modern and sustainable." in response to the current situation, she listed a series of ambitious improvement suggestions: including overall management, centralizing leadership to one faculty member; finding new resource support for the herbarium; strengthening coordination with courses such as biology and environmental science; unifying fundraising agreements, and strengthening the herbarium's off-campus influence.

in february 2023, pryor excitedly submitted the report to bernhardt. but since then, the report has been like a stone thrown in the dark night, with no response.

it was not until three months later, at an unrelated meeting, that she heard a few words from bernhardt: the plan "did not receive attention from the school management." after further questioning, bernhardt suggested that pryor prepare another "vision plan" to concretize the improvement measures and emphasize the important value of the specimen museum to the management.

pryor made another plan. she taught herself architectural drawing, drew the floor plan of the new museum, and sent the plan to bernhardt again. unexpectedly or expectedly, the plan was once again ignored.

sometimes, silence itself can speak volumes. in the year that pryor was working to renovate the herbarium, the tide was turning.

the worst happened. on an ordinary afternoon on february 13, 2024, the five responsible persons received an email from alberts, which officially announced the closure of the specimen museum:we carefully considered what was needed to maintain the herbarium and concluded that because the resource gap was so great, it was in the best interest of duke and the herbarium to find a new home or homes for the collections. the collections deserved to be housed in an institution with the resources to maintain them for future generations.”

player didn't expect that renovation would turn into closure and temporary relocation would turn into permanent moving out.

zero-sum game

in an email to the media afterwards, alberts explained,the main reason for the closure was a lack of funds and the school needed to invest resources elsewhere.“responsibly maintaining such a valuable collection would require a long-term commitment of significant resources from the biology department and the university…at the expense of many other urgent and important priorities.”

bernhardt said she discussed various options for the future of the herbarium with pryor, manos and others, such as moving to a more modern location on campus, or placing the specimens off campus, and even seeking cooperation with other herbaria.although he, like player, supports the most "positive" plan, “but the university believed that the funding and internal partnerships required for the prior plan were unattainable.”

this is different from what pryor and others have said. they emphasized that the university had very limited communication with the herbarium in the previous year. "the administration never discussed it with us, never talked to us, and said, 'let's think about it together and see what we can do' or launched a crowdfunding campaign," pryor said. as an alternative, she proposed to raise funds to build a new herbarium on campus, but the university ignored it.

"a duke alumnus contacted me with a $3 million donation plan, and he pledged to donate the first $1 million. that's when duke university showed its hand. instead of seizing this good opportunity, they asked us to close the museum."

alberts admitted that the donation plan was true, but it would cost at least $25 million to renovate the facilities and maintain the daily expenses of the specimen museum. this is beyond duke university's affordability. she also emphasized that this decision should be seen as a "relocation" rather than a "closure." "admittedly, the relocation of the specimen museum is a loss for both duke university and the faculty and staff... but in the long run, we sincerely believe that this is all for the sake of the collection."

"some people feel that relocation is a denial of the value of the herbarium. this makes me curious, confused and a little frustrated... in fact, it's just the opposite. we recognize that these collections are unique and irreplaceable, and we know the amazing value they contain. it's just that we are no longer the right stewards of these collections. this is completely different from saying that the herbarium has no value." alberts believes that plant specimens are best preserved by natural history museums.

jacquelyn gill, an associate professor of plant ecology at the university of maine, countered that duke university, with an endowment of $11.6 billion through 2023, is far more financially capable than many public universities. “now this university is saying they are concerned about the future of their collection and want to sell it to another institution. i can’t help but ask, if duke doesn’t have the resources, who does?”

pryor added that the $25 million figure was "without basis." faculty members told duke's independent student newspaper, the chronicle, that the renovation of the biological sciences building led the university to re-examine the "practical value" of the herbarium, and that management decided to focus funds on "more effective" projects and sacrifice the herbarium. the university has always refused to comment on this.

in response to inquiries from the chronicle, duke university vice president for public affairs frank tramble said that president vincent price and provost alec gallimore were not involved in the decision to close the museum, but they fully support alberts and bernhardt in "prioritizing projects."

apparently, the herbarium is not a high priority. alberts said,compared to general institutions such as libraries, herbaria are more like "research cores" in universities, serving only a small number of students and faculty.“this is in no way to devalue the value of herbaria, but no reasonable world would ignore this when discussing the future of specimens.”

“this is a zero-sum game,” alberts added. “no one has unlimited resources.”

wandering

discussions about the relocation of the specimens have already begun, and one possible recipient is the botanical research institute of texas (brit). but industry insiders believe that such a large collection will be difficult to move in one place due to limited space and manpower. a more likely approach is to divide the collection and entrust it to many different institutions. in this way, the cost will be ridiculously high. not only that,during the relocation process, specimens can easily be lost.

"it's going to be very chaotic. things are going to get lost. no matter how careful you are, things are going to get damaged," gill said in the podcast, adding that many specimens are one-of-a-kind and the loss is difficult to replace. "you're always going to lose some things when you move to a new place, right?"

these concerns are not new. the rancho santa ana botanical garden in claremont, california, has received relocated specimens many times. lucinda mcdade, the director of the botanical garden, recalled that during one of the relocations, a storm occurred and the specimens were dumped by workers at random in the loading and unloading area. "we had to drop everything and rush to rescue them."

in october 2023, when nara prefectural university in japan was rebuilding its school building, it mistakenly discarded more than 10,000 rare plant specimens as unclaimed waste. at the time, the on-site staff simply asked, "does anyone want these specimens?" - after receiving no response, they hastily cleaned up the specimens as garbage. these discarded specimens also include some rare plants that have become extinct.

the problem is not as simple as moving the collection to another location.the herbarium is not an isolated paradise, but is in constant communication and connection with researchers and the place where they are located. in the process of accumulating specimens over the years, the museum has cultivated a group of professionals who are familiar with these plants; duke university is located in the southeastern united states, which is a hot spot for biodiversity, and 60% of the duke herbarium's collections come from this area. there is no doubt that relocation will sever these connections.

there are many reasons not to move, but the reality is helpless. professor liu xingyue from the college of plant protection at china agricultural university told me, "from the results, given the limited resources, dispersing and preserving a large number of specimens to units with more suitable conditions is actually a scientific and reasonable solution."

bai ming, a researcher at the institute of zoology of the chinese academy of sciences, believes that this will obviously "reset the original academic accumulation to zero", but in the eyes of american universities, it is also a way to pursue efficiency and enhance innovation. "of course, it is very detrimental to the basic discipline of taxonomy. as for the impact of this practice on future generations, only history can answer it, and it may depend on luck."

displaced specimens are like drifting dandelions, and duke is not the only herbarium that cannot take root. in 2015, the university of missouri decided to close the 119-year-old dunn-palmer herbarium, and more than 170,000 specimens were moved to the missouri botanical garden 200 kilometers away. in 2017, the university of louisiana at monroe moved nearly 500,000 specimens to the texas botanical institute in order to expand the stadium track. from 1997 to 2015, more than 100 of the more than 700 herbaria in north america were forced to close due to budget and space constraints.

“this is a long-standing problem,” said scott edwards, an evolutionary biologist at harvard university. “the fate of many university museums and herbaria depends on whether their activities are taken seriously by their deans and local administrations.”

the space to store the specimens costs money, routine maintenance and repairs costs money, and hiring faculty and staff to manage the specimen museum also costs money."the challenge is that compared to other hot emerging fields, funding to support herbarium operations is close to zero," wrote cassandra quave, director of the emory university herbarium, in a blog post. "if i see another article about how artificial intelligence can save the earth, i might go crazy and scream!" she recalled that in the past 12 years as director, "i had to beg, borrow money, and threaten to quit to get funding and barely make ends meet. we even raised funds by selling t-shirts..."

one direct reason for the funding shortage is the university operating model. for example, if the national institutes of health (nih) provides a grant of $1.25 million, $700,000 will be used to cover the basic costs of the research project (including staff salaries, consumables, equipment, etc.). the university will draw an overhead on this basis, which may account for 56% or more of the basic cost. many universities have begun to rely on these overheads.

she pointed out that government funding agencies viewed herbarium operations as the university's business and would not provide funding support; while universities viewed herbariums as taking up space but not receiving management fees, which was equivalent to a net loss, and naturally did not like them. herbariums were thus left out in the cold.

"what on earth is this for?"

blake fauskee is a doctoral student in pryor's lab. he believes that the university's so-called "limited resources" is just a cover-up, and the deeper reason is that botanical research based on the herbarium is not valued. "i can't get rid of the feeling that duke university is gradually eliminating my research field."

vergales added that the function of a herbarium is essentially to record plants, which is not eye-catching enough and gives people an old-fashioned feeling, and outsiders often have the stereotype of being "out of date".many people do not understand “what the herbarium is for,” and unfortunately, this includes even duke university leadership."they were completely confused," pryor recalled. "every time a chairman or dean came to visit, i would spend hours explaining it."

explaining to outsiders "what is the use of this" is the fate of all unpopular disciplines, and it is almost doomed to be futile. because this question often means that the questioner has abandoned awe and curiosity. you can even imagine how the other party waits for a brief summary that is more ready to use than instant noodles with a lazy and contemptuous attitude. any effort at self-proof is vulnerable in the face of pragmatism-after all, everyone will die. the late botanist vicki funk once made a don quixote-like struggle. she listed a full hundred uses of the specimen museum and wrote earnestly: "i hope that lists like this can help people continue to fight to save those precious collections from being dismembered and destroyed."

duke museum of herbarium could not escape its fate—nor could pryor. as she was about to retire, she faced various media, repeatedly answered "what's the use", and stumbled on the podcast about "important value". she chose to charge at the windmills again and again.

in an interview with the washington post, pryor showed reporters several specimens of the pink slipper orchid (cypripedium acaule).

the pink cypripedium above was picked on may 16, 1936, from a low pine forest along the tar river in north carolina.

these pink orchids were picked in 1997 and were already in full bloom in mid-april, a full month earlier than 60 years ago.

by analyzing more than 200 specimens collected between 1886 and 2022, the study found that pink orchids now bloom an average of 12 days earlier than 150 years ago. according to this trend, they may bloom before pollinating insects such as bees are active, affecting pollination and reproduction. pryor said that these specimens "represent specific plants at a specific time and place, carrying a unique history."

the herbarium is a miniature natural archive that bears witness to plant evolution and environmental changes.at duke, some specimens date back nearly 200 years. the greenery once supported the weather for a century and drummed up the atlantic hurricanes. now the fragrance has faded, leaving only the dried flowers, which have faded away and become a distant memory. more than 800,000 pieces of frozen time are placed here, just like the latin name of the herbarium, hortus mortus, which literally means the garden of death.

"they don't need watering or care." during the interview, pryor seemed a little embarrassed. "the plants are very happy here." she grinned, a long-lost smile showing on her face.

nameless thing

the role of the herbarium does not stop there.

in one hundred years of solitude, marquez wrote: "when the world was born, many things had no names yet, and when they were mentioned, they still needed to be pointed out." however, until now, there are still only a few things with "names". according to statistics from the world conservation union (iucn) in july 2024, we have discovered, described and named about 2.15 million species so far, accounting for only 7% of the estimated number of all species (30 million). a study published in science in 2013 estimated that about 20% of known species have been duplicated - the actual number of species we know is even fewer.

human beings' ignorance of species diversity is far beyond our imagination.even the question of "how many species are there on earth" remains controversial. in a 2010 article, robert may, a professor of zoology at oxford university, gave a broad estimate of 3 million to 100 million species; the most widely circulated study came from camilo mora and others, who came up with a number of 8.7 million species; more recent studies have shown that the number of species is in the order of 1 billion. behind the huge disagreement, the definition of "species" itself has long been controversial. charles darwin wrote in "the origin of species": "no definition has yet been able to satisfy all naturalists; although every naturalist vaguely knows what he means when he talks about species."

in 1753, botanist carl von linné published species plantarum, establishing the first binomial nomenclature and artificial classification system. he wrote, "if we do not know the name, knowledge is difficult to pass on." in the nearly 300 years since then, taxonomy has gradually grown into a science of naming, describing and classifying organisms. the taxonomic position of an organism in a specific group provides key information about its characteristics, kinship and evolution. only a small part of this information can be obtained from living plants, and most of it depends on the long-term collection of herbariums.

the plant entities collected in the specimen museum are the starting point and purpose of taxonomy.when a new species is published, the main material is called a type specimen, which is a unique physical certificate. the international code of botanical nomenclature stipulates that the qualified publication of the name of a new genus or taxonomic group below the new genus must specify the type, and the name of the taxonomic group is permanently attached to that type - and the duke herbarium has nearly 2,000 such named type specimens. the discovery, description, definition and identification based on this are like a lighthouse that never stops turning, illuminating the ups and downs of the sun and moon in the ocean of species for us.

unfortunately, many species have disappeared without a trace before they were discovered, and the tragic wind has not even heard of them. according to the "2023 state of the world's plants and fungi report" released by the royal botanic gardens, kew, about three-quarters of unknown vascular plants are threatened with extinction. many plants are already endangered when they are officially named and recognized as new species. this trend has intensified in recent years: 59% of the newly discovered plant species in 2020 are endangered, 24.2% are critically endangered, and the overall threatened proportion is as high as 77%.

in 2018, botanist denise molmou discovered an unknown plant in the rapids and shallows along the konkouré river in guinea, which she named saxicolella deniseae. by may 2022, when the species was officially published, researchers checked satellite maps and found that saxicolella deniseae's original habitat had turned into an ocean six months earlier due to the construction of a hydroelectric dam downstream. now, the plant is also named after denise: "denise's saxicolella" - denise may be the first and last person to see it in person.

the extinct saxicolella deniseae | denise molmou

“the simple truth is that you cannot save what you do not understand,” wrote botanist rafaël govaerts, not without sadness.

taxonomists please answer

against the backdrop of climate change and species extinction, the fate of the duke museum can be seen as a microcosm of the situation of related disciplines:biological taxonomy, which relies on specimen museums, has also entered the cold winter of its life cycle.

in 2022, bai ming, liu xingyue and 33 other experts jointly published an article titled "taxonomists have become an "endangered species", and it is urgent to save biological taxonomy", pointing out that biological taxonomy is already "endangered". the article wrote that as the overall research of life sciences goes deeper into the molecular level, the development of taxonomy is in jeopardy. the status of many biological taxonomists is just like the endangered species they study, with their numbers shrinking sharply, and some groups of taxonomists have even become "extinct".

bai ming told me that the opportunity for this article to come out was that the industry generally realized a problem: "it is difficult for our students to find jobs after graduation."

"traditional taxonomic results are difficult to publish in high-impact journals, and taxonomic positions are rarely set up in top schools, so students see no future prospects after graduation." bai ming said that this has led to a large number of high-quality students being "persuaded to withdraw" and the quality of students has declined.

even for those who stay, it is difficult to persist. compared with scholars in other fields, biological taxonomists face greater difficulties in job hunting, promotion, research funding, etc. a large number of young taxonomists are forced to give up their expertise and change their research direction. in my country, more than 80% of taxonomy graduate students fail to engage in research in this discipline, resulting in a serious loss of talent and difficulty in maintaining echelons.

the current academic evaluation system mainly uses factors such as the influence of papers, economic benefits, and social impact as criteria, and the contribution and value of taxonomy are seriously underestimated.。"it is precisely because biological taxonomy is so fundamental that other disciplines forget that taxonomy is not 'free' and someone needs to 'pay' for it when using its research results and achieving practical results."

at present, it is almost inevitable that the mainstream of disciplines will turn to molecular biology. many people are misled by the descriptive work of taxonomy, believing that taxonomy is simple and unscientific, and arbitrarily classify it as a discipline that only identifies species. but in fact, biological taxonomy is not a "craft", but a highly comprehensive science that requires multidisciplinary knowledge such as morphology, genetics, cytology, ecology, and molecular biology. new technologies such as dna barcodes can quickly identify and classify species, but they cannot replace traditional morphological classification methods. entomologist quentin wheeler used an analogy to say that thinking that dna barcodes can replace serious taxonomy is no different from thinking that calculators can replace pure mathematics.

in october 2023, an article titled "the silent extinction of species and taxonomists" sparked widespread discussion in the industry. the article analyzed the root causes of the cold reception of biological taxonomy.

ivan löbl and others pointed out in the article that taxonomy requires a lot of time for revisions, and it often takes several years to publish a paper. this is obviously incompatible with the current evaluation system of "publish or perish". moreover, taxonomic achievements are usually cited less in the first few years, but will continue to be cited in the next few decades or even centuries. current publication indicators, whether journal impact factors or h-index, do not take this special citation pattern into account. this leads to low citations for taxonomic scholars at the critical stage of their careers, falling into a vicious cycle.

in addition, the open access publishing model has been gaining momentum in recent years, and well-known journals often charge authors high article processing charges (apcs). for example, plos biology charges as much as $3,000 to $5,300. however, many taxonomic scholars are amateur scholars or retirees who do not have funding support. even professional researchers with institutional backing are mostly short of money. publication fees have become a threshold that cannot be ignored.

"what will the future be like?" at the end of the conversation, i asked bai ming and thousands of future taxonomists a question that only time will tell.

bai ming did not hesitate at all: "it is not enough to just wait for others to pay attention. the key is to use and develop new technologies to embrace change and promote the development of the next generation of taxonomy."

will the future be good?

the story of the duke herbarium is far from over.

on february 16, someone launched a petition on change.org, calling on duke university to withdraw its decision to close the museum. in just 10 days, the number of supporters exceeded 14,000; six months later, the number of supporters has reached... just over 20,000. a blockbuster is common in literary and artistic works, and being mediocre is the majority of reality. but pryor still did not give up: "maybe a miracle will happen?"

the miracle may never come, or it may come tomorrow. player gave it his all.

standing in front of the silent iron cabinet, she could hear the ancient mood of the garden. since the botanist luca ghini pioneered the technology of plant specimen preparation and established the first herbarium in the 1530s, this ancient research paradigm has always been at the forefront of technology. now, the herbarium's collection includes not only herbarium specimens, but also liquid-immersed specimens, seeds, wood slices, pollen, microscopic sections, and even frozen dna materials. we can extract dna from specimens from 200 years ago, and we can use machine learning to analyze specimens and study the herbivorous habits of insects. what kind of technology will emerge in the next 200 or 500 years, and what kind of information will people at that time decode from the specimens? many species have been lost in the long river of evolution, and specimens are the earth's memory belonging to all mankind.

katherine prior | the chronicle

in the dim and cramped room, prior pulled out a red paper folder from the specimen cabinet. the red color represented that the specimen was collected from north carolina. he opened the cover and found a maidenhair fern (adiantum capillus-veneris) pressed on the thick and hard paper.

“collected by frank smith in columbiana county on may 13, 1934.” she held the specimen up to the light. “north end of lake waccamaw.”

the figure is solitary, upright and stubborn, like a new bud rising from the gray cracks.