172 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Juso. 
A hard wood with a specific gravity of 1.12; small trees, making good posts. 
(Hansard.) Probably the same as " huso”’ or ** hueso.”’ 
Jussiaea acuminata. See Jussiaea linifolia. 
Jussiaea hirta. See Jussiaea peruviana., 
Jussiaea linifolium. YERBA DE CLAVO AGUADA, 
Family Onagraceae; a woody, erect plant, growing in hedges and along edges of 
ponds. (Stahl, 4: 182, as Jussiaea acuminata.) 
Jussiaea palustris. YERBA DE CLAVO PALUSTRE. 
Anerect annual, 60 centimeters high, found in inundated plains. (Stahl, 4: 133). 
Jussiaea peruviana. YERBA DE CLAVO PELUDA. 
An herbaceous, woody annual, found in inundated places: 1 meter high. 
(Stahl, 4: 134, as Jussiaea hirta.) 
Jussiaea pilosa. 
An erect, woody herb in wet places: the variety glabra is known from near 
Manati. 
Jussiaea repens. YERBA DE CLAVO ACUATICO. 
A fleshy aquatic herb, sometimes floating, found in marshes. <A great variety 
of medicinal properties are attributed to this by the natives of Jamaica, where it 
is called ‘* primrose willow.’ (Stahl, 4: 129.) 
Jussiaea suffruticosa. YERBA DE CLAVO. 
An herbaceous, woody annual or biennial, common in wet places: 1 meter high; 
reported from near Manati. (Stahl, 4: 131.) 
Kallstroemia maxima. 
Family Zygophyllaceae; a leafy herbaceous plant. Secured by Sintenis in 
cultivated grounds near Manati. 
Lablab vulgaris. See Dolichos lablab. 
Labourdonnaisia albescens. ACANA. 
A sapotaceous tree with hard wood. 
Lache prieta. 
A tree from the interior of the island; height, 25 to 30 feet (8 to 9 meters); 
diameter, -20 to 25 inches (50 to 62 centimeters). Wood pink, hard; specific 
gravity, 0.993; used in building houses. (Exp. 1857.) 
Lactuca floridana. 
A coarse herbaceous composite collected by Sintenis on a coffee farm near 
Cayey. 
Lactuca intybacea. CHICORIA AZUL. 
An erect much-branched annual composite. (Stahl, 5: 155.) 
Lactuca sativa. LETTUCE. 
The lettuce offered in the markets in Porto Rico seemed to be of fairly good 
quality; better than could be raised in most tropical countries. Even at sea level, 
near Santurce, lettuce seemed to thrive moderately well, but it could probably be 
made to do better in the mountains. The seed is, of course, imported. 
Lagenaria vulgaris. GourD. MAaARIMBo, 
Also called ‘‘amargo,”’ **marimbo,’’ and **cadungo amargo.”” Family Cucur- 
bitaceae. This vine yields the gourds from which the so-called ** guira,”* ‘*gui- 
chara’? or ‘‘caracho”’’ is made. In Cuba the vine is said to be called ‘‘ guiro 
cimarron,”’ while ‘‘ guira cimarrona’”’ is the calabash tree Crescentia. 
The young gourds, 6 to 10 inches long. are eaten. Two of the latter size were 
offered for 10 cents in the San Juan market, June 14. 
