Croton ambanivoulensis Baill., Adansonia 1: 165. 1861, as 'ambanivoulense'

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 : 11

5. Croton ambanivoulensis Baill., Adansonia 1: 165. 1861, as 'ambanivoulense'

Oxydectes ambanivoulensis (Baill.) Kuntze, Revis. Gen. Pl. 2: 611. 1891. Type. Based on Croton ambanivoulensis Baill.

Type.

Madagascar. Prov. Toamasina: [region of the] Ambanivoules, [west of] Tamatave , dans les forêts, Dec. 1836, J.P. Goudot s.n. (lectotype, designated here: G [G00446336]!; isolectotype: P [P00301514]!) .

Habit and distribution.

Shrubs; eastern lowland Madagascar (Toamasina).

Notes.

There are two sheets of Goudot s.n. at G within the same jacket, meaning they are considered as being part of the same collection (see Gautier et al. 2016). However, they do not fit the criterion of bearing a single label in common. Each sheet has its own label, and they are not identical. One, the lectotype, has a precise collecting date and the locality name of Ambanivoules, whereas the other sheet (G00446337) does not, and the written field description of the plants differs between the two. Also, the lectotype has mainly pistillate flowers open whereas the other syntype has only staminate flowers open. This leads us to conclude that the two sheets are actually different gatherings, even though both were annotated in Baillon's hand as " Croton ambanivoulense ." We have designated the sheet that is most consistent with the protologue (G00446336) as the lectotype.

Ambanivoules were an ethnic group of eastern Madagascar located approximately 80-100 km west of Tamatave, their name derived from the Malagasy “Antanbanivolo,” or "people living at the base of the mountains covered with bamboos" (Schatz 2013).