> [!cite] BHL link: this entry starts at [page 254](https://www.biodiversitylibrary.org/page/33068496) of TL-2 Vol. II
> Author links: [IPNI](https://www.ipni.org/a/4036-1) LSID 4036-1, [Wikidata](https://www.wikidata.org/wiki/Q21515952) QID Q21515952
> Support pages: [[Abbreviations|abbreviations]], [[Layout key|layout key]], [[Cite TL-2|cite TL-2]]
### Author
Holden, Isaac (1832-1903), American algologist; graduate of Dartmouth College, Conn. (1852); high school teacher 1852-1872; in private business (1872), at Bridgeport, Conn. 1878-1903.
**Abbreviated name**: *Holden* \[standard form in IPNI: *Holden*\]
#### Herbarium and types
Material at [[Collection FH|FH]], [[Collection MIN|MIN]], [[Collection NEBC|NEBC]] and [[Collection NY|NY]]. For the *Phycotheca boreali-americana* see F. S. Collins. Additional references: Wood (1965) and Fahey and Doty (s.d.).
*Ref*.: Day, Rhodora 3: 255. 1901 (herbarium still private).
- Koster, J. T., Taxon 18: 1969.
- Wood, R. D., Monogr. Charac. 1: 788. 1965.
- Fahey, E. M. and M. S. Doty, An alphabetical index to the Phycotheca boreali-americana, mimeogr., 37 p. s.d.
- Anon., Bull. Torrey bot. Club 21: 490. 1894, Bot. Gaz. 20: 126. 1895 (announcement *Phycotheca*; 80 sets).
#### Bibliography and biography
Barnhart 2: 191; CSP 15: 904; IH 2: 281.
- Anon., Torreya 3(8): 128. 1903.
- Collins, Rhodora 5: 219-220. 1903.
- Ewan, J. et al., Short hist. bot. U.S. 17, 75. 1969.
- Phillips, V. T. and M. E., Guide mss. Coll. Acad. Phila. p. 182, 567. 1963.
- Rickett, H. W., Index Bull. Torrey bot. Club 47. 1955 (bibl).