Monographs Details: Psychotria mapourioides var. chionantha (DC.) Steyerm.
Authority: Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.
Family:Rubiaceae
Description:Distribution and Ecology - Distribution. French Guiana, Suriname, and Brazil. FRENCH GUIANA. Riviere Camopi (affluent de l'Oyapock), rive gauche juste en amont du saut Yanioué, 6 Feb 1968, Oldeman & Sastre 27; rives du bas de la crique Inipi sur 3 km de son embouchur appartenant a la riviere Camopi (affluent de l’Oyapock), 7 Feb 1968, Oldeman & Sastre 64; foret, region de Tonate, 26 Jul 1962, Halle 469; St. Laurent du Maroni, Crique Margot (Maroni), 21 Mar 1949, Guyane Francaise-Service Forestier 5005. SURINAME. Along road on Capoerica ridge in forest margin, Perica River (distr. Commewijne), 30 Jan 1954, Lindeman 5437; forest of the Station, Groningen, 10 May 1916, Samuels 399; fluv. Suriname, 1908, van den Landbouw 158; fluv. Suriname, inter Kabelstation et Gansee, 14 Apr 1915, Stahel 494; Estershist, Suriname River, 24 Apr 1963; Schulz 9594; bank of Sara Creek, distr. Brokopondo, 24 Mar 1964, van Donselaar 1102; Omgeving Kamp 8, Lyn 6, 20 Mar 1964, Elburg 9855; Hostmann 65; Oct 1842, Focke 705; ad Osembo en Para, Apr 1842, Focke 583. BRAZIL. Bahia: in convallibus circa Bahia, Salzmann s n (type collection of Palicourea chionantha); 1842, Glocker 46; margem da Rodovia Itabuna-Ilhéus, 30 Aug 1965, Belem 1654. Maranhão: Ubim, Maracassumé River region, 6 May 1932, Froes 1742. Distrito Federal: Horto do Guara, Brasilia, Heringer 8796/990. State? Cruz de Casma, prov. Soteropolitana, Feb 1839, Martius herb. 604 (type collection of Psychotria luschnathii).

Discussion:

Palicourea chionantha DC., Prodr. 4: 526. 1830.

Psychotria luschnathii Klotzsch, Flora 24(Beibl.): 71. 1841; Mart. Herb. Fl. Bras. 311. 1841.

Psychotria luschnathiana Schlecht., Linnaea 28: 512. 1856.

Mapouria luschnathiana (Schlecht.) M.-Arg., Flora 59: 457. 1876.

Mapouria chionantha (DC.) M.-Arg., Mart. Fl. Bras. 6(5): 387. pi. 58. 1881.

Type. Bahia, Brazil, Salzmann.

In the material I have examined the outer surface of the corolla is glabrous, while the pedicels are pubescent and the upper axes of the inflorescence are partially pubescent. In Bremekamp’s key (Rubiaceae in Fl. Suriname, p 225), it is stated that the “inflorescence and pedicels glabrous,” but on p 229 in the descriptive text, the pedicels are stated to be “puberulous.” Bremekamp correctly describes the corolla as externally glabrous, but Müller-Argoviensis [in Mart. Fl. Bras. 6(5): 387] describes the corolla as “extus brevissime furfurello-puberula.”

Distribution:French Guiana South America| Suriname South America| Brazil South America|