> [!cite] BHL link: this entry starts at [page 939](https://www.biodiversitylibrary.org/page/33121070) of TL-2 Vol. I
> Author links: [IPNI](https://www.ipni.org/a/3118-1) LSID 3118-1, [Wikidata](https://www.wikidata.org/wiki/Q84811) QID Q84811
> Support pages: [[Abbreviations|abbreviations]], [[Layout key|layout key]], [[Cite TL-2|cite TL-2]]
### Author
Geyer, Carl \["Charles"\] Andreas (1809-1853), German botanist who collected in the United States 1842-1844. (Nicollet's expedition).
**Abbreviated name**: *Geyer* \[standard form in IPNI: *Geyer*\]
#### Herbarium and types
Main sets at [[Collection BM|BM]], [[Collection GH|GH]], [[Collection K|K]], other material at [[Collection B|B]], [[Collection BR|BR]], [[Collection C|C]], [[Collection FI|FI]], [[Collection G|G]], [[Collection KIEL|KIEL]], [[Collection LE|LE]], [[Collection LZ|LZ]], [[Collection MO|MO]], [[Collection NY|NY]], [[Collection OXF|OXF]], [[Collection P|P]], [[Collection P|P]]-DU, [[Collection PRU|PRU]], [[Collection TCD|TCD]], [[Collection U|U]], [[Collection US|US]], [[Collection VT|VT]], [[Collection W|W]].
*Ref*.: IH 2: 222-223.
- Candolle, Phytographie 415. 1880.
#### Bibliography and biography
Barnhart 2: 43.
- Geyer, in Hooker, London J. Bot. 4: 479-492, 653-662. 1845, 5: 22-41, 198-208, 285-310, 509-524. 1846 (itinerary), 6: 65-79, 206. 1847.
- Anon., Chronik des Gartenwesens 3: 185-187. 1853 (n.v.)
- Anon., Flora 37: 139-141. 1854, Bot. Zeit. 12: 191-192. 1854.
- Anon., Bot. Zeit. 12: 191-192. 1854.
- Anon., Bonplandia 2: 71-73. 1854.
- Reichenbach, Kew J. Bot. 7: 181-183. 1855.
- Spaulding, Popular Sci. Monthly 74: 124-125. 1909.
- Blankinship, Montana Agr. Coll. Sci. Stud. 1(1): 6, 19. 1905.
- Thomas, Huntia 3: 10-11. 1964.