COOK AND COLLINS—ECONOMIC PLANTS OF PORTO RICO. 228 
Plumeria tenorii. ALEL{ AMARILLO. 
A shrub, 4 to 5 meters high, cultivated in gardens. (Stahl, 6: 76.) 
Poaya. See Spermacoce portoricensts. 
Podocarpus coriaceus. 
Family Taxaceae; a broad-leaved coniferous tree, known from near Maricao. 
Other species of Podocarpus are known from Jamaica and other West Indies; also 
from South America. The genus also extends through the Pacific islands to the 
Malay region, China, and Japan. 
Poinciana pulcherrima. CLAVELLINA. 
A leguminous shrub of 12 feet (4 meters), widely cultivated in gardens as an 
ornamental. This species was observed at Juana Diaz. (Stahl, 3: 128.) 
The trunk of this tree reaches 3 to 4 inches (7 to 10 centimeters) in diameter. 
It is said that its wood is very beautiful, and it is perhaps susceptible of being 
utilized for fine carpentry work. Its color isa striped orange. Itis rather soft and 
is of a rather fine grain and texture. Specific gravity, 0.389. (Grosourdy, 2: 385.) 
Poinciana regia. FLAME TREE. FLAMBOYAN. PLATE LIV. 
This most beautiful caesalpiniaceous tree is a native of Madagascar, but it is 
now planted as an ornamental throughout the tropics. (Stahl, 3: 124.) 
The large, finely divided leaves appear almost as delicate as maiden-hair fern 
fronds, and the spreading habit renders it an excellent shade tree, in addition to 
the ornamental value of the extremely showy flowers. The wood is, however, 
not strong, and many of the trees in Porto Rico had evidently suffered severely. 
The plate shows the plaza at Caguaz which is planted exclusively in Poinciana 
with excellent effect. Grosourdy (2:385) gives the specific gravity of 0.828. 
Poligala larga. See Polygala longicaulis. 
Polisandro. See Stahlia maritima. 
Polygala longicaulis. PoLIGALA LARGA. 
Family Polygalaceae; an herbaceous, erect annual, 30 to 40 centimeters high. 
In sandy places. (Stahl, 2:52.) 
Polygala paniculata. OROSNE. 
An herbaceous annual found in pastures, 20 to 25 centimeters high; reported 
from Mayaguez. The common name was heard in the barrio Atola Teja between 
Bayamon and Toa Baja. (Stahl, 2:51.) 
Polygala variabilis. POLIGALA VARIABLE. 
A slender annual in savannas. (Stahl, 2:54.) 
Polygonum acre. SMARTWEED. YERBA DE HICOTEA. 
Family Polygonaceae; a widely distributed species of smartweed. 
Polypodium polypodioides. CoLAbILLa. 
A small fern. Rolls of the dried fronds are sold in the market at Ponce as a 
remedy for diseases of the blood. 
Pomarosa. See Jumbosa jambos, 
Pomegranate. See Punica granatum. 
Pomelo. See Citrus decumana. 
Pomorosa. See Jambosa jambos. 
Pongatium indicum. See Sphenocles zelanica. 
Popon. See /butia maritima. 
Porophyllum ellipticum. YERBA POROSA. 
An herbaceous, annual composite, 50 centimeters high; grows along roadsides 
and in dry, stony pastures. (Stahl, 5: 146.) 
Porophyllum macrocephalum. YERBA DE PEO. 
Also called ‘‘ yerba de cabra.’’ An annual herb, said to have the odor of Bifora. 
