> [!cite] BHL link: this entry starts at [page 278](https://www.biodiversitylibrary.org/page/33355365) of TL-2 Vol. III
> Author links: [IPNI](https://www.ipni.org/a/22861-1) LSID 22861-1, [Wikidata](https://www.wikidata.org/wiki/Q1166908) QID Q1166908
> Support pages: [[Abbreviations|abbreviations]], [[Layout key|layout key]], [[Cite TL-2|cite TL-2]]
### Author
Mann, Horace Jr. (1844-1868), German-American botanist; assistant at the Gray Herbarium; B. Sc. Harvard 1867; curator of botany at the Boston Society of natural history.
**Abbreviated name**: *H. Mann* \[standard form in IPNI: *H.Mann*\]
#### Herbarium and types
[[Collection CU|CU]] (American), [[Collection M|M]] (German).
#### Bibliography and biography
Barnhart 2: 443; BM 3: 1233; Bossert p. 252; CSP 8: 318; Herder p. 337; Hortus 3: 1199 ("Mann, H."); IF p. 717; IH 1 (ed. 6): 361, 2: 499: Jackson p. 357; Kew 3: 580; Lenley p. 280, 463; ME 2: 515, 517; PH p. 497; PR 5786; Rehder 5: 542; Tucker 1: 458.
- Anon., Bull. Essex Inst. 1: 25-31, 41-50. 1870; Bull. Soc. bot. France 15 (bibl.): 237. 1869; Flora 52: 144. 1869; Österr. bot. Z. 19: 161. 1869 (d. 11 Nov 1868); Proc. Amer. Acad. Arts Sci. 8, 8 Jan 1896, 3 p. (b. 25 Feb 1844, d. 11 Nov 1868).
- Brewer, S. H., *in* S. Watson, Bot. Calif. 2: 558. 1880.
- Brigham, W. T., Proc. Boston Soc. Nat. Hist. 12: 152-155. 1869 (reprint p. 1-8; including text on results of Mann's study of the Hawaiian flora, p. 5-8), repr. J. Bot. 7: 168-171. 1869.
- Day, M., Rhodora 3: 256-257. 1901.
- Dupree, H., Asa Gray 326, 341, 545, 567. 1959.
- Eaton, D. C., Amer. J. Sci. 97: 143. 1869.
- Ewan, J., *in* Cent. progr. nat. Sci. 55. 1955.
- Ewan, J. et al., Short hist. bot. U.S. 10. 1969.
- Jackson, B. D., Bull. misc. Inf. Kew 1901: 44 (pl. K).
- Loring Gray, J. (Mrs. A. Gray), Letters A. Gray 2: 545, 566, 570. 1893.
- McCaughey, V., Haw. For. Agr. 16: 27, 53. 1919.
- Merrill, E. D., B. P. Bishop Mus. Bull. 144: 130. 1937 (bibl.); Contr. natl. Herb. U.S. 30(1): 203-204. 1947.
- Prentiss, A. N., Bull. Torrey bot. Club 8(9): 104-105. 1881, Bot. Centralbl. 8: 60. 1881 (basis of herb. CU formed by H. Mann's herbarium acquired by president White in 1868).
- Rogers, A. D., John Torrey 283, 287, 289-299. 1942.
- Sayre, G., Mem. New York Bot. Gard. 19(3): 366. 1975.
- Voss, E. G., Contr. Univ. Mich. Herb. 13: 81. 1978.
#### Note
Mann was the son of the American educator and politician Horace Mann (1796-1859), reformer of the Massachusetts common school system and active opponent of slavery while a member of Congress. The botanist-son visited the Hawaiian islands in 1864/65 with W. T. Brigham; became assistant to Asa Gray and instructor in botany at Harvard College; he died of "hasty consumption" (McCaughey 1919). His herbarium was purchased 1870 by Andrew D. White to become the basis of the present Wiegand Herbarium (CU). The Mann Library at Cornell University is named after Elbert R. Mann, former Dean of the School of Agriculture of Cornell.
#### Eponymy
*Hesperomannia* A. Gray (1865).
### Publications
##### n.5351. Flora of the Hawaiian islands
**Title**
*Flora of the Hawaiian islands* \[Proc. Essex Inst. 5-6, 1866-1871\]. †.
**Notes**
*Publ*.: series of papers in Proc. Essex Inst. (remained incomplete: Ranunculac. – Araliac. p.p.): 5: 113-144. 30 Nov 1866; 5: 161-192. Sep 1867; 5: 233-248. Jun 1868; 6: 105-112. Feb 1871. – Merrill (1937) mentions a reprint, p. 1-88, not seen by us; it carries no date but is presumably from 1871. The papers are to be cited from the journal.
##### n.5352. Enumeration of Hawaiian plants
**Title**
*Enumeration of Hawaiian plants* by Horace Mann. \[From the Proceedings...\] Issued, July, 1867. Cambridge (Welch, Bigelow, and Company (printers to the University)) 1867. Qu.
**Abbreviated title**: *Enum. Haw. pl.*
**Notes**
*Publ*.: Jul 1867 (so dated; rd. by Society 1 Mai 1867 – 30 Apr 1868), p. \[i\], \[143\]-235. *Copies*: G, NY, USDA. – Preprinted with special t.p. and to be cited from Proc. Amer. Acad. Arts Sci. 7: 143-184. Jul 1867, 185-235. Jan-Mai 1868.
##### n.5353. Catalogue of the phaenogamous plants of the United States
**Title**
*Catalogue of the phaenogamous plants of the United States*, east of the Mississipi, and of the vascular cryptogamous plants of North America, north of Mexico... Cambridge, Mass. (Horace Mann) \[1868\] Oct. (in fours).
**Abbreviated title**: *Cat. phaen. pl. U.S.*
**Notes**
*Ed. 1*: Jul-Aug 1868 (p. \[3\]: 1 Jul 1868), p. \[1\]-56. *Copies*: G, MO, NY, US(2), USDA; IDC 7584.
*Ed. 2*: Jan-Apr 1872 (p. \[4\]: Feb 1872; TBC Mai 1872), p. \[1\]-54. *Copies*: G, MICH, MO(2) NY, US(3), USDA. – "Second edition, revised and corrected..." Cambridge, Mass. (B. P. Pickmann). Published by Benjamin Pickmann Mann (1848-1926).
*Reissue ed. 2*: 1882 (Nat. Nov.Jul(3) 1882; Bot. Zeit. 27 Oct 1882).
##### n.5354. Four new genera of Hawaiian plants
**Title**
*Four new genera of Hawaiian plants*. Notes on Hesperomannia. By William T. Brigham, and on Alsinidendron, Platydesma, and Brighamia, with an analysis of the Hawaiian flora. By Horace Mann... Boston (Printed at the Riverside Press, Cambridge) 1869. Qu.
**Notes**
*Author first part*: William Tuffts Brigham (1841-1926).
*Publ*.: Mar 1869 (p. 541), p. \[i\], 529-541, *pl. 20-23.* uncol. liths. *Copy*: G. – Reprinted with special t.p. from Mem. Boston Soc. nat. Hist. 1(4): 529-541. Mar 1869. To be cited from journal; Mann's contribution occupies p. 529-541.