Monographs Details: Bonnetia tepuiensis Kobuski & Steyerm.
Authority: Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.
Family:Theaceae
Description:Distribution and Ecology - Distribution. Small trees to 8 m high, at upper altitudes and summits of sandstone mesas of the Gran Sabana and Pakaraima Plateau. VENEZUELA. Edo. Bolívar, Carrao-tepuí (Cerro Ptari-tepuí): Steyermark 60871 (holotype F, isotype NY); in open places with B. roraimae, 2400-2500 m alt, 7 Dec 1944, Steyermark 60902 (NY); Ilu-tepui: tree 6-8 m high, petals pink, styles subulate, stigmas 2, minute, frequent in Clusia-Magnolia-Oedematopus woodland, ridge east of Mesa Grande at 1650 m alt, 9 Mar 1952, Maguire 33330 (NY, US, VEN); densely fastigiate tree 3-5 m high, frequent in thickets and bush islands dominated by Bonnetia and Stegolepis, at 1600 m alt, 12 Mar 1952, Maguire 33353 (NY, unicate); Chimantá Massif: small tree, 1-4 m high, petals white with pink margins, Rio Tirica at 1900 m alt, Central Section, 5 Feb 1955, Steyermark & Wurdack 481 (NY, VEN, F); dwarf shrub 1 m high, leaves rigid, coriaceous, petals white with pink, rare, savanna, Torono-tepuí at 2100 m alt, 9 Feb 1955, Steyermark & Wurdack 680 (NY, F, VEN); bushy shrub or tree 1.5-4.0 m high, petals pink, locally frequent, Bonnetia thicket along stream, at 2000 m alt, 20 Feb 1955, Steyermark & Wurdack 990 (NY, US, VEN, F); shrub 1.5-2.0 m high, stigmas white, open dwarf forest, Caño Mojado, Torono-tepuí at 2000-2200 m alt, 21 Feb 1955, Steyermark & Wurdack 1047 (NY, F, US); petals white, dwarf forest, Cerro Venamo at 1100-1300 m alt, Steyermark & Nilsson 154 (NY, VEN); tree 10 m tall, dwarf forest, La Danta at 1200 m alt, 18 Abr 1960, Steyermark & Nilsson 227 (NY, VEN); dominant open dwarf forest, Uei-tepuí at 1100-1300 m alt, 19 Abr 1960, Steyermark & Nilsson 344 (NY, VEN); 24-25 Abr 1960, 580 (NY, VEN); tree 12 m tall, petals white with rose, Cerro Venamo at 1000 m alt, 27 Die 1963, Steyermark & Dunsterville 92248 (NY, VEN). GUYANA. Pakaraima Plateau: bushy tree 3 m high, corolla white shaded pink, subdominant in low forest at 1400 m alt, Mt. Ayanganna, 12 Aug 1960, Tillett & Tillett 45111 (NY, K).

Discussion:

Type. Tree 20-35 ft tall, leaves not clustered at tips so prominently as in B. roraimae, but flowers only slightly larger, petals white with pink tinge, Carrao-tepuí (Ptari-tepuí), lower southeastern slopes at 1700-2000 m alt, Edo. Bolívar, Venezuela, 5-6 Dec 1944, Julian A. Steyermark 60871 (holotype F, isotype NY).

Distribution:Venezuela South America| Guyana South America|