Monographs Details: Xyris uleana Malme
Authority: Maguire, Bassett & Wurdack, John J. 1964. The botany of the Guayana Highland--Part V. Mem. New York Bot. Gard. 10: 1-278.
Family:Xyridaceae
Scientific Name:Xyris uleana Malme
Description:Distribution and Ecology - Distribution. Guayana, chiefly on damp sand at low altitudes, on sandstone areas up to alt. 1200 m; Tafelberg, Suriname; Kaieteur, British Guiana; lower Rio Negro, Amazonas, Brazil; Vaupes, Colombia.

Discussion:

X. vaupesana Idrobo & Smith, Caldasia 6: 237. f. 26. 1954; type: CaƱo Pacu, Rio Vaupes, Colombia, B. E. Schultes 5831 (US).

Type. In arenosis humidis, Manaos, Amazonas, Brasil, May 1902, Ule 6171.

The var. angustifolia Lanjouw, Kew Bull. 1939: 562 (1939) (isotype, Sandwith 1421 [NY]), with narrow ("0.8 mm") leaves and subterete, hardly bicostate peduncles, is from the Kaieteur Savanna, British Guiana. X. connect Malme, Ark. Bot. 19(13): 2 (1925), Ducke 15060, would belong here.

Distribution:Guyana South America| South Africa Africa| Suriname South America| Guyana South America| Venezuela South America| Colombia South America|