> [!cite] BHL link: this entry starts at [page 750](https://www.biodiversitylibrary.org/page/33355837) of TL-2 Vol. III > Author links: [IPNI](https://www.ipni.org/a/12233-1) LSID 12233-1, [Wikidata](https://www.wikidata.org/wiki/Q4993222) QID Q4993222 > Support pages: [[Abbreviations|abbreviations]], [[Layout key|layout key]], [[Cite TL-2|cite TL-2]] ### Author Nielsen, Peter (1829-1897), Danish botanist, school master at Ørslev 1859-1888; in charge of the state experiments in plant culture 1877-1898; government consulting agriculturist from 1885. **Abbreviated name**: *P. Nielsen* \[standard form in IPNI: *Nielsen*\] #### Herbarium and types [[Collection C|C]]; further material at [[Collection DBN|DBN]], [[Collection L|L]] and [[Collection MANCH|MANCH]]. *Exsiccatsammlung af Characeer navnlig fra Danmark*, nos. 1-63, after 1868, sets at [[Collection B|B]], [[Collection C|C]], [[Collection FH|FH]], [[Collection LD|LD]], [[Collection UPS|UPS]]. (publ. after 1868). #### Bibliography and biography Barnhart 3: 4; BL 2: 56, 695; Bossert p. 286; CSP 8: 506, 10: 925-926; Frank 3(Anh.): 71; IH 2: (in press); LS 18948-18950; Morren ed. 10, p. 49; Rehder 5: 620; Stevenson p. 1252; Urban-Berl. p. 272. - Candolle, A. P. de, Phytographie 436. 1880 (coll. C). - Christensen, C., Danske bot. hist. 1: 449, 711-717, 737-740, 2: 412-416. 1926. (bibl., various necrologies); Danske bot. litt. 1880-1911: 46-47. 1913, 1912-1939: 2. 1940 (biogr. ref., b. 28 Jul 1829, d. 30 Sep 1897, portr.). - Lind, J., Danish fungi herbarium E. Rostrup 35. 1913. - Sayre, G., Mem. New York Bot. Gard. 19(1): 90. 1969. - Warming, E., Bot. Tidsskr. 12: 221-223. 1881. - Wittrock, V. B., Acta Horti Berg. 3(2): 103. 1903. - Wood, R. D., Monogr. Charac. 1: 789. 1965. #### Eponymy *Nielsenia* H. Sydow (1921).