> [!cite] BHL link: this entry starts at [page 830](https://www.biodiversitylibrary.org/page/33069072) of TL-2 Vol. II
> Author links: [IPNI](https://www.ipni.org/a/5451-1) LSID 5451-1, [Wikidata](https://www.wikidata.org/wiki/Q8194959) QID Q8194959
> Support pages: [[Abbreviations|abbreviations]], [[Layout key|layout key]], [[Cite TL-2|cite TL-2]]
### Author
Lejeune, Alexandre Louis Simon (1779-1858), Belgian physician and botanist; health officer in the French army 1801-1804, from then on physician at Verviers; Dr. med. Liège 1820.
**Abbreviated name**: *Lej.* \[standard form in IPNI: *Lej.*\]
#### Herbarium and types
[[Collection BR|BR]]; other material at [[Collection G|G]], [[Collection GRO|GRO]], [[Collection H|H]], [[Collection L|L]], [[Collection LG|LG]], [[Collection MW|MW]].
#### Name
Also as Alexander Ludwig Simon Lejeune.
#### Bibliography and biography
AG 2(1): 430, 7: 165, 347; Barnhart 2: 366; BL 2: 40, 681; BM 3: 1086; Bossert p. 233; CSP 3: 945, 8: 199; Frank 3(Anh.): 56; Hortus 3: 1198 ("Lej."); IH 2: 428; Jackson p. 271; JW 1: 445; Kew 3: 405; NAF ser. 2. 2: 164; PR 5183-5186; Rehder 5: 500; SO add. 797a; TL-2/1: 1559; Tucker 1: 421; Zander ed. 10, p. 684.
- Anon., Bot. Zeit. 17: 168. 1859; Flora 42: 255. 1859; Bull. Soc. bot. France 6: 176. 1859; Bull. Soc. Natural. Luxembourg 54: portr. between 160-161. 1949.
- Crépin, F., Guide bot. Belgique 227, 456, 1878.
- Evens, F. M. J. C., Gesch. algol. Belgie 178. 1944.
- Kickx, J. J., Ann. Acad. Sci. Belgique 26: 113-128. 1860 (portr., bibl.); Belg. horticole 1860-1861: xi-xiv. 1861 (portr., bibl.).
- Lawalrée, A., Rev. Verv. Hist. nat. 15: 23-24. 1958 (corr. with Chapuis); Lejeunia ser. 2. 1: 1-4. 1961 (letter to M. A. Libert).
- Lefort, Bull. Soc. Natural. Luxemb. ser. 2. 46: 188-203. 1952 (letters by F. A. Tinant (1803-1853) to Lejeune).
- Monnoyer, Lejeunia 5(1): 5-9. 1941 (portr.).
- Morren, E., Bull. Soc. bot. France 20: lvii. 1873.
- Seemann, B., Bonplandia 7: 87. 1859.
- Selys-Longchamps, Belg. horticole 1860-1861: xiv-xv. 1861.
- Zuchold, E. A., Jahresb. nat. Ver. Halle 5: 32. 1853.
#### Eponymy (genera)
*Lejeunea* Libert (1820), corr. Hampe (1837, *nom. et orth. cons.*); *Lejeunia* Libert (1820, *orth. rej.*). *Note*: There are about 100 hepatic generic names in which *Lejeunea* is combined with a prefix. *Lejeunia* E. Gerlach (1961) is dedicated to M. Lejeune-Carpentier.– (journal): *Lejeunia*. Revue de botanique. 1937-1960. Ser. 2. Nro. i-x. 1961-x.
### Publications
##### n.4349. Flore des environs de Spa
**Title**
*Flore des environs de Spa*, distribution selon le système de Linnaeus, des plantes qui croissent spontanément dans le département de l'Ourte et dans les départements circonvoisins, pour servir de suite à la Flore du Nord de la France de Mr. Roucel;... A Liège (Chez Duvivier, imprimeur-libraire,...) 1811-1813, 2 vols. Oct.
**Abbreviated title**: *Fl. Spa*.
**Notes**
*1*: 1811 (BF 9 Apr 1812), p. \[i\*\], \[i\]-viii, \[3\]-254, \[1-2, err.\].
*2*: 1813, p. \[i\]-vi, 7-350.
*Copies*: B, BR, G, L, KNAW.
##### n.4350. De quarundam indigenarum plantarum virtutibus commentarii
**Title**
*De quarundam indigenarum plantarum virtutibus commentarii*, quos ex rectoris magnifici Ernst, et senatus academici auctoritate, praevio facultatis medicae decreto, pro gradu doctoris, summisque in medicina honoribus ac privilegiis, in Universitate Leodensi, ritè ac legitimè consequendis, publico examini submittit, die 18vâ. martis 1820, horâ 4a. pomeridianâ A. L. S. Lejeune, Verviensis,... Leodii \[Liège, Luik\] (typis P.-J. Collardin,...) 1820. Qu.
**Abbreviated title**: *Indig. pl. virt.*
**Notes**
*Publ*.: 18 Mar 1820 (t.p.), p. \[1\]-24. *Copies*: G, KNAW.
##### n.4351. Calothecae
**Title**
*Calothecae* (Desvaux) *nova species* descripta auctore A. L. S. Lejeune. \[Verviers or Liège\], 1823.
**Abbreviated title**: *Calothec. sp.*
**Notes**
*Publ*.: Aug 1823, p. \[1\]-2. *Copy*: BR. – Reprinted later in Messager des sciences et des arts de la Belgique Gand, Sep 1823. (Inf. R. Tournay).
##### n.4352. Revue de la flore des environs de Spa
**Title**
*Revue de la flore des environs de Spa*. Contenant l'énumération de toutes les plantes y décrites, avec les observations, les descriptions, les additions, et les corrections nécessaires pour la mettre le plus possible à la hauteur de la science;... Liège, (de l'imprimerie, de Ve. Duvivier, libraire,...) 1824. Oct. (in fours).
**Abbreviated title**: *Rev. fl. Spa*.
**Notes**
*Publ*.: 14-19 Mar 1825 (Ned. Staatscourant 21 Mar 1825; t.p. 18245 p. \[264\]: 5 Feb 1825), p. \[i\]-viii, \[1\]-263, \[264\]. *Copies*: BR, G, KNAW, L, NY.
##### n.4353. De Libertia
**Title**
*De Libertia*, novo graminum genere, commentatio, auctore A. L. S. Lejeune,... (Nov. Act. Acad. C.L.C. Nat. Cur. Vol. XII. p. 2) \[Bonn 1825\] Qu.
**Notes**
*Publ*.: 1825, reprint with double pagination, p. 751 \[(1)\]-(8) 758, *pl. lxv* (col. copper engr. T. Wild), to be cited from journal: Nova Acta Leop. 12: 751-758. 1825. *Copy*: BR.
##### n.4354. Verhandeling over de Ranunculaceae
**Title**
*Verhandeling over de Ranunculaceae* der Nederlandsche flora... \[Amsterdam 1827\]. Oct.
**Abbreviated title**: *Ranunculac.*
**Notes**
*Co-author*: Richard Joseph Courtois (1806-1835).
*Publ*.: 1827, p. \[1\]-44. *Copy*: BR. – Reprinted from H. C. van Hall, Bijdr. natuurk. Wet. Amsterdam 2: 69-110. 1827.
##### n.4355. Compendium florae belgicae
**Title**
*Compendium florae belgicae*. Conjunctis studiis ediderunt A.-L.-S. Lejeune,... & R. Courtois,... \[1, 2:\] Leodii \[Liège, Luik\] (apud P.-J. Collardin,...), \[3:\] Verviae \[Verviers\], (apud A. Remacle,...) 1828-1836, 3 vols. Duod. (in sixes).
**Abbreviated title**: *Comp. fl. belg.*
**Notes**
*Co-author*: Richard Joseph Courtois (1806-1835).
*1*: 14-19 Apr 1828 (Ned. Staatscourant 21 Apr 1828; p. x: cal. Oct. 1827), p. \[i\]-xx, \[1\]-264.
*2*: 1831 (p. vii: 20 Dec 1830), p. \[i\]-vii, \[1\]-320.
*3*: Oct-Dec 1836 (p. vi: 15 Oct 1836), p. \[i\]-vi, \[1\]-423. – "Post obitum R. Courtois editus ab A.-L.-S. Lejeune."
*Copies*: B, BR, G, L, MO, NY.