Monographs Details: Psychotria deflexa subsp. campyloneura (Müll.Arg.) 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. Suriname, British Guiana, Venezuela, Brazil, and Peru. SURINAME. south foot of Tafelberg in high forest on granite, 13 Jun 1963, Wessels Boer 1580; south of Tafelberg at the margin of Kappelsavanna in savanna forest on Roraima sand, 10 Jun 1963, Wessels Boer 1530; Wallaba forest and piña swamps, Base Camp on Tafelberg Creek, Saramacca River, 13 Jul 1944, Maguire 24111-A, 24111-B; Wilhelmina Gebergte, along Lucie Rivier, 3° 20' N, 56° 49' W-3° 32' N, 56° 26' W, 2 mi below confluence of Oost Rivier, 9 Jul 1963, Maguire, Schulz, Soderstrom & Holmgren 54106. BRITISH GUIANA. Mazaruni Station, 31 Jul 1940, Fanshawe 532 (Forest Dept no. 3268). VENEZUELA. Amazonas: along Río Yatua at base of Cerro Arauicaua, 10 Apr 1970, Steyermark & Bunting 102517; between Yavita and Pimichin, 1 km from Yavita, 21 Apr 1970, Steyermark & Bunting 102872. Terr. Delta Amacuro: Sierra Imataca, San Victor, Río Amacuro, Venezuela-British Guiana frontier, alt 65-80 m, 31 Oct 1960, Steyermark 87169. Without data: Pannier & Schwabe 1103. BRAZIL. Amazonas: margin of Rio Maturacá, between the Missão Salesiana and Rio Cauaburí (Rio Negro), 8 Jan 1966, Silva & Brazão 60798; basin of Rio Purus, Municipality of Lábrea, by Igarape Caietitú, 2 km south of Lábrea, 1 Nov 1968, Prance, Ramos & Farias 8173. Terr. Rondonia: basin of Rio Madeira, 8 km NE of Porto Velho, 7 Nov 1968, Prance, Rodrigues, Ramos & Farias 8267. PERU. Loreto: Florída, Río Putumayo, at mouth of Río Zubineta, alt 180 m, May-Jul 1931, Klug 2282. Junín: Pichis Trail, Santa Rosa, alt 625-900 m, 6-7 Jul 1929, Killip & Smith 26167.

Discussion:

Psychotria campyloneura M.-Arg., Mart. Fl. Bras. 6(5): 302. 1881.

Type. Rio Uaupes prope Panuré, Amazonas, Brazil, Oct 1852, Spruce 2751.

The lateral axes in the fruiting stage tend to become strongly deflexed in this taxon.

Psychotria deflexa subsp campyloneura is frequently confused with typical subsp deflexa, P. paniculata, and P. bostrychothyrsus. There is too much intergradation between subsp campyloneura and typical P. deflexa to maintain the former in the specific category. Tate 150, for example, is an intermediate collection with the infructescences elongated with 16 lateral axes and attaining a length of 8 cm. The hypanthium may be nearly or quite glabrous, but may also show minute puberulence. The ultimate axes of the inflorescence may become elongated to 12-20 mm as in Steyermark & Bunting 102872 and Prance et al 8267.

From typical subsp deflexa this taxon may be differentiated by the usually more elongated inflorescence with more numerous and more deflexed axes and with a more flexuous rachis. From P. paniculata it may be distinguished by the once-dichotomously branched lower axes of the inflorescence, the more numerous and shorter axes, and the pale lower surface of the leaves, while from P. bostrychothyrsus it differs in the shorter merely once-branched axes of the inflorescence.

Distribution:Suriname South America| Guyana South America| Venezuela South America| Brazil South America| Peru South America|