214 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Pavonia spinifex. CaAbIli.o ESPINOSO. 
An annual or biennial shrub, 1 to 2 meters high. found on mountains and in 
shaded places. (Stahl, 2: 83.) 
Pavonia typhalea. CabILLo PEQUEQUE. 
A shrubby annual, growing in shaded wet places. The small white flowers are 
collected in a head and give an appearance quite different from related members 
of the Malvaceae. Specimens collected at El Rio were called **‘anamu’’ and 
were reputed a remedy for chigoes. (Stahl, 2: 81.) 
Paw paw. See Carica papaya. 
Peanut. See Arachis hypoge«. 
Pectis humifusa. YERBA DE SAN JUAN. 
A woody annual composite from sandy seashores. (Stahl, 5: 145.) 
Pectis serpyllifolia. See Pectis himifusu, 
Pedilanthus tithymaloides. 
A peculiar fleshy Euphorbiaceous plant, with an irregular wing along the midrib 
on the lower side of the leaves. Frequently planted for hedges. 
Pegadora. See Mentzelia aspera, 
Pega-palma. See Mareygravia wmbellata, 
Pega-pega. 
This name meaning “stick-stick.” like our * stick-tight.” is probably applied 
to several seeds adapted for attaching themselves to one’s clothes, as “* pica-pica ” 
is used for many spiny plants. 
At Santurce Priva echinata and Aeschynwomene aamericaida were called ** pega- 
pega.” 
Pega-palo. See Biguonia unguis-cati. 
Pega pollo. See Boerhavia scandens. 
Pegoge. See Tubernaecmontana citrifolia, 
Peireskia. 
Fainily Cactaceae; a thick, spiny shrub or small tree, valuable mostly as a stock 
on which to graft the various cacti. Known from specimens collected by Sintenis 
at Penuelas, where it was cultivated in gardens. 
Pecnaejuelo. 
A tree from the uortheastern part of the island; height. 45 to 50 feet (13 to 15 
meters); diameter, 15 to 20 inches (37 to 50 centimeters). Wood, ash-colored; 
rather hard; specific gravity, 0.810; used for lumber.  (ixp. L857.) 
Pendejuelo. 
Evidently the same as Penaejuelo, 
A wild tree, 50 feet (15 meters) high, with a trunk reaching a diameter of 18 
inches (45 centimeters). Furnishes an ash-colored wood that breaks with an 
oblique fracture. Its common use is for lumber used in building crude houses. 
(Grousourdy, 2: 408.) 
Péndola. See Citharecylum quadrangulare. 
Péndula. 
A tree from the eastern part of the island; height, 45 to 50 feet (13 to 15 meters); 
diameter 15 to 20 inches (37 to 50 centimeters). Wood, yellow, hard; specific 
gravity, 0.942; used for lumber. (Exp. 1857.) 
A large tree, trunk rather short; wood very hard, making most excellent 
boards and posts. A very valuable wood with a specific gravity of 0.84. (Captain 
Hansard. ) 
Péndulo blanco. See Vitew divaricata. 
Péndulo colorado. See Citharexylum quadrangulare. 
