13. DISTICTIS Mart. ex Meisn., Pl. Vasc. Gen. 1: 300; 2: 208. 1840.

Lianas, the branchlets hexagonal usually with raised angles, without interpetiolar glandular fields, sometimes with foliaceous pseudostipules. Leaves 2-foliolate, frequently with a trifid tendril. Inflorescence a raceme or a racemose panicle, mostly terminal, few- to several-flowered. Calyx cupular, truncate, usually with glandular fields below margin; corolla white to dark red-violet or red, tubular-campanulate or narrowly tubular, pubescent outside. Anthers glabrous, the thecae straight, divaricate to subparallel. Ovary oblong, puberulous; ovules few-seriate in each locule; disk annular-pulviniform. Fruit a capsule, the valves convex or biconvex, elliptic-oblong, acutish at extremes, the valves not echinate. Seeds thin, 2-winged, the body brown, usually papillose or puberulous.

Mexico, Central America, Antilles, Colombia, Venezuela, Peru, Brazil; 10 species, 3 in Venezuela, 2 of these in the flora area.

Key to the Species of Distictis

1. Leaves stellate-pubescent, not canescent; corolla lavender ..... D. granulosa

1. Leaves pubescent with simple trichomes, canescent below; corolla dark purple when fresh ..... D. pulverulenta

Distictis granulosa Bureau & K. Schum. in Mart., Fl. Bras. 8(2): 179. 1896.

Pithecoctenium uleanum Kraenzl., Notizbl. Bot. Gart. Berlin-Dahlem 6: 377. 1915.

Liana. Moist and wet nonflooded evergreen lowland forests, 100-1000(-1200) m; Bolívar (Altiplanicie de Nuria, Gran Sabana, Río Cuyuní basin), Amazonas (scattered). Apure; Colombia, Guyana, Suriname, French Guiana, Peru, Amazonian Brazil, Bolivia. Fig. 380.

Distictis pulverulenta (Sandwith) A.H. Gentry, Ann. Missouri Bot. Gard. 63: 77. 1976. -Distictella pulverulenta Sandwith, Brittonia 3: 91. 1938.

Canopy liana. Poor-soil, sandy forests, 200-800 m; Bolívar (Gran Sabana), western Amazonas. Guyana, French Guiana, Amazonian Peru, Brazil.

This species has the branchlet angles rather inconspicuous and is thus intermediate between Distictis and Distictella. However, both genera are distinctive in their dark wine-colored flowers.


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