262 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 

Family Carduaceae; an erect, herbaceous annual, 50 centimeters high, found — 
among rocks and around houses. (Stahl, 5: 131.) 
Verde de saco. 
A tree from the coast; height, 25 to 30 feet (7 to 9 meters); diameter, 8 to 9 
inches (20 to 22 centimeters). Wood yellow, hard: specific gravity, 0.895; used 
in building houses. (Exp. 1857.) 
‘Verdeseco. See Tetrazygia elaeagnoides. 
Verdolaga. See Portulaca oleracea. 
Verdolaguilla. See Talinum racemosum and Pilea trianthemoides. 
Vernonia arborescens. TAPA-CAMINO. 
A shrubby composite, 1 meter high. Three varieties are recognized by Stahl. 4 
(Stahl, 5: 101.) 
Vernonia longifolia. Santa Marta. 
A shrubby composite from the south side of the island. Two vanenes sin- 
tenisii and vahliana, have been described from Rincon and Guanica, respectively. 
(Urban, Symb. 1: 456.) 
Veronica. See Stemodia durantifolia. 
Verbesina alata. CAPITANEJA. i 
e: 
i 
+ 
Vibona. See Gilibertia arborea and G. laurifolia. 
Vigna capensis. FRIJOL CIMARRON. 
Family Viciaceae; an herbaceous vine, found in pastures, flowering in the rainy 
months. Legume, 8 to 10 centimeters long. (Stahl, 3: 72, as Vigna vexillata.) 
Vigna catjang. FRIJOLES. 
The cowpea; it is not known that an agricultural use is made of this species in 
Porto Rico. (Stahl, 3: 73.) 
See note under F’rijoles. 
Vigna luteola. FRIJOL MARRULLERO. 
A rather slender leguminous vine congeneric with the cowpea of our Southern 
States, but with smaller and more pointed leaves. From meadows along the 
coast, near Manati. (Sintenis.) Our specimens are from Lecheria, near San- 
turce. According to the Kew Index this species is a synonym of V, glabra. 
(Stahl, 3: 71.) 
Vigna vexillata. See Vigna capensis. 
Vijao. 
Enumerated by Hill among trees used for dyeing and tanning. 
Vinagrillo. See Owalis corniculata, O. frutescens, and Rumex crispus. 
Vinagrillo morado. See Oxalis corymbosa. 
Vinga. 
A typographical error for Vigna. 
Vifia. See Hibiscus sabdariffa. 
Vincetoxicum. PLATE LX. 
A large genus of climbing asclepidaceous plants. Several species in addition to 
the following are known from Porto Rico, but mostly without native names. A 
specimen from Coamo (no. 750), not yet specifically identified. was called ‘* Guana- 
bancilla cimarrona.”* : 
Vincetoxicum pubescens. Gwvawtro. 
A twining vine, 1 to 2 meters high, on clay soils. (Stahl, 6: 88, as Gonolobus 
pubescens. ) 
Violeta. See Anoda hastata. 

