Hunt Institute for Botanical Documentation
A Research Division of Carnegie Mellon University

Hunt Institute Archives Text Discovery Platform

Search a large and growing portion of our online collections, including handwritten documents.
PROTOTYPE

This prototype uses state-of-the-art artificial intelligence, including a vision-language model (VLM) capable of reading handwritten documents as well as typed and printed text, to create searchable transcriptions of digitized materials in the Hunt Institute Archives. This makes it possible to search the textual contents of individual pages, including material that may not be described in the archival catalog.

Use Keyword search for specific words, names, dates, scientific names, or phrases. Try Semantic search (experimental) to describe a topic, question, or kind of material when you do not know the exact wording used in the documents.

About the AI-generated transcriptions

The transcriptions are generated automatically from page images and may contain errors, especially with difficult handwriting, unusual names, multiple languages, image-quality problems, or complex layouts. They are intended primarily as a discovery aid rather than authoritative transcriptions.

Each result provides the generated transcription and links to the original digitized material and associated archival description so that readings can be checked against the source. The transcription workflow uses AI models run locally by the Hunt Institute.

About Keyword and Semantic search

Keyword search is the default and matches the wording in the transcriptions. Results contain all your terms. Use quotes for an exact phrase. Substring matching is supported, so aceae can find plant-family names ending in -aceae.

Semantic search (experimental) is useful when you know what kind of material you are looking for but do not know the words used in the documents. It ranks transcribed passages by similarity of meaning, so relevant results may not contain the exact words in your query.

Semantic queries can be broad research topics, descriptions of activities or relationships, or natural-language questions. For example:

plant collecting and fieldwork in South America medicinal, culinary, or other traditional uses of plants chromosomes and plant classification early herbals and botanical illustrations botanical institutions exchanging plants, seeds, and specimens microscopy and photomicrography in botanical research How did botanists and gardeners introduce plants from one region to another? grafting, budding, and propagation of tropical fruit crops

Semantic search is not a chatbot: a question is used as a search query, and the system returns archival passages that appear conceptually related to it rather than generating an answer or summary. Short descriptions and ordinary research questions generally work better than lists of disconnected keywords. Quotation marks have no special meaning in Semantic mode. Cross-language matching may work in some cases, but it should not be treated as translation.

Keyword and Semantic search are complementary. Keyword search lets you require particular wording; Semantic search can surface differently worded passages about the same subject. Depending on the research question, trying both can reveal different useful material.

Open a result: use the prominent page-and-transcription link to see the metadata, PDF, and full transcription. Keyword-search terms are highlighted in the transcription.

Archives Collections Database (ArchivesSpace): the Collection, Item/Folder, and Digital Object links open the corresponding archival records. Collection-level dates describe the collection as a whole, not necessarily the specific item or page.

If a PDF does not load: on the detail page, use the Digital Object link, click “Go to file” in ArchivesSpace, and navigate to the page number shown here.

Current limitations
  • Automated transcriptions can contain missing or incorrect text or unintended repetition. Difficult handwriting, image quality, unusual layouts, and multiple languages can reduce accuracy. Always consult the original page image when an exact reading matters.
  • Semantic search remains experimental. Its rankings are an additional discovery aid, not a complete or definitive set of relevant results, and highly ranked pages can sometimes be only broadly related.
  • This is an active prototype. Search coverage, transcriptions, functionality, and the interface may continue to change as additional archival material is processed and the system is improved.

← Back to results

Page 14 · DO #1515 · 235_Chase_Bx2FF7_r

Collection
Mary Agnes Merrill Chase (1869–1963) papers and misc. items
Item/Folder
Agnes Chase Correspondence, 1943–1959
Digital Object
DO #1515, page 14
Collection-level dates
1889–1964
Open PDF at page 14 ↗

Page transcription

January 31, 1955

Miss Agnes Chase
Research Associate
Department of Botany
Smithsonian Institution
U. S. National Museum
Washington 25, D. C.

Dear Miss Chase:

I greatly appreciate your checking the references concerning the caryopses of Limnodea. It gives me a great deal more confidence in publishing the information as now.

We are currently working on sub-family differences (Pooideae and Panicoideae) of a physiological nature based on the original experiment by Mitchell and Marth 1917, Science 106: 15-16. These do correlate very nicely with leaf bundle sheath anatomy. They indicate that such genera as Vaseyochloa, Distichlis, Tridens, Uniola, Arundo, etc., etc. belong in the Panicoideae (or Chloridoideae of Prat) rather than Festuceae or Pooideae. Also Muhlenbergia, Sporobolus, Aristida, Stipa, etc. also belong in Panicoideae.

Another student is working out Setaria macrostachya. He has 4 entities in it now. 1; a delicate plant from South Texas 2n = 36 and sexual. 2; 54-chromosome plants West Texas to Calif. apomict. 3; 74-chromosome apomicts from South Texas, and 4; 68-chromosome plants from South Texas also apomictic. No. 1 is without doubt a distinct species according to any one concept. It grows along with the 68- and 72-chromosome plants.

Bouteloua pectinata has 2n = 20 chromosomes, B. hirsuta 2n = 24 or more. Ecologically, too, these two taxa are distinct.

Hilaria belangeri has 2n = 36 only around Orona, Crockett County, Texas. Most plants are 2n = 72 but two collections have 2n = 90 and some 2n = (between 72 and 90). Regardless of chromosome numbers, all of these appear to be the same species. H. swallenii is distinct and has 90-120 chromosomes.

Bouteloua uniflora 2n = 20, B. curtipendula 2n = 40 (sexual) and mostly rhizomatous and late-flowering, 2n = 60-100 or more (apomictic) bunch grasses. Some of these latter may resemble uniflora slightly.

The above are some of the more interesting things that we have found out recently.

Sincerely,

Walter V. Brown