Croton isomonensis Leandri, Ann. Mus. Colon. Marseille, ser . 5, 7(1): 48. 1939

Berry, Paul E., Kainulainen, Kent & Ee, Benjamin W. van, 2017, A Nomenclator of Croton (Euphorbiaceae) in Madagascar, the Comoros Archipelago, and the Mascarene Islands, PhytoKeys 90, pp. 1-87 : 40-41

76. Croton isomonensis Leandri, Ann. Mus. Colon. Marseille, ser. 5, 7(1): 48. 1939

Type.

Madagascar. Prov. Toliara: vallée de la Manambolo, rive droite (basin du Mandrare) aux environs d’Isomono (confluent de la Sakamalio), Mont Morahariva ( Mahamena ), 1000-1400 m, Dec 1933, H. Humbert 13247 (lectotype, designated here: P [P00133243]!; isolectotypes: G [G00018158]!, K [K001040341]!, P [P00133244]!, TAN [TAN000534]!) . Madagascar. Prov. Toliara: vallée de la Sakamalio, affluent de la Manambolo (basin du Mandrare ), 900-1100 m, Dec 1933, H. Humbert 13367 (syntypes: P [P00133245]!, P [P00133246]!) . Madagascar. Prov. Toliara: bassin de reception de la Mananara, affluent du Mandrare, pentes occidentales des montagnes entre l’Andohahela et l’Elakelaka au Vatazo (S d’Imonty), 900-950 m, Feb 1934, H. Humbert 14076 (syntypes: P [P00133249]!, P [P00133250]!) . Madagascar. Prov. Toliara: bassin de reception de la Mananara, affluent du Mandrare , pentes occidentales des montagnes entre l’Andohahela et l’Elakelaka entre Ampahiso et Mahamavo, 800 m, Jan-Feb. 1934, H. Humbert 13768 (syntype: G [G00018159]!) .

Habit and distribution.

Large shrubs to small trees; southeastern Madagascar (Toliara).

Notes.

Leandri (1939) cited four Humbert collections as syntypes of Croton isomonensis : 13247, 13367, 14070, and 13768. We have not located a Humbert 14070 specimen, but the Humbert 14076 collection has the verbatim collection locality as given in Leandri (1939) for Humbert 14070. We surmise that the ' 14070 ' in Leandri (1939) is a typographic error for ' 14076.'