> [!cite] BHL link: this entry starts at [page 857](https://www.biodiversitylibrary.org/page/33069099) of TL-2 Vol. II
> Author links: [IPNI](https://www.ipni.org/a/5515-1) LSID 5515-1, [Wikidata](https://www.wikidata.org/wiki/Q21518712) QID Q21518712
> Support pages: [[Abbreviations|abbreviations]], [[Layout key|layout key]], [[Cite TL-2|cite TL-2]]
### Author
Letacq, Arthur Louis, abbé (1855-1923), French clergyman and botanist; ordained 7 Jun 1879; vicar at Ecouché; parish priest at Saint-Germaine-d'Aunai (1883), of Ticheville (1885); from 1890 almoner at the "Asile des Soeurs des pauvres" at Alençon.
**Abbreviated name**: *Letacq* \[standard form in IPNI: *Letacq*\]
#### Herbarium and types
Unknown.
#### Bibliography and biography
Barnhart 2: 373; BL 2: 187, 188, 681; CSP 16: 737-738; LS 35961, suppl. 15902-15910; SO 2828.
- Chevalier, A. J. B., Bull. Soc. bot. France 70: 690-691. 1923.
- Husnot, T. H., Rev. bryol. 11: 79. 1884; 13: 15, 32, 80. 1886; 15: 94. 1888.
- Letacq, A. L., Invent. pl. Orne 273-279. 1906 (bibl.).
### Publications
##### n.4440. Inventaire des plantes phanérogames et cryptogames vasculaires
**Title**
*Inventaire des plantes phanérogames et cryptogames vasculaires* croissant spontanément ou cultivés en grand *dans le département de l'Orne*... Rouen (Imprimerie Jules Lecerf fils) 1906-1909, 4 parts. Oct.
**Abbreviated title**: *Invent. pl. Orne*.
**Notes**
*1*: Jul-Dec 1906, p. \[i\], \[1\]-70. – Reprinted from Bull. Soc. Amis Sci. nat. Rouen ser. 5. 41: 369-438. 1906.
*2*: early 1907, p. \[i\], \[71\]-134. – Reprinted from id. 42: 229-292. 1907.
*3*: 1908, p. \[i\], \[135\]-182. – Reprinted from id. 1943: \[43\]-88. 1908.
*4*: 1909, p. \[i\], \[183\]-348. – Reprinted from id. 44: \[43\]-208, \[209\]. 1909. This is the first supplement.
*Copy* reprint: NY.
*Second supplement*: Lemée, G., Bull. Soc. Amis Sci. nat. Rouen 68/69: 139-159. 1934; see also Lemée, G., Bull. Soc. Linn. Normandie ser. 8. 7: 99-106. 1935.