COOK AND COLLINS—ECONOMIC PLANTS OF PORTO RICO. 155 
yards for blocks and pulleys. for spokes and tires. and many other things which 
require great strength. Water boiled with this wood is an antivenereal specific 
and cures ulcers produced by this disease. The resin from the ‘‘ guayacan,”’ 
lignum-vitae, is highly valued for gout. The Caribbeans apply it to other local 
ailments, and foreigners extract it freely on the southern coast equally with the 
‘““ucar,’’ ‘‘expinillo,”’ *‘ palo de Maria,” ‘‘ palo de Brazil’’ and others, for dyes 
and coloring matter. (Hill and Sudworth, 27.) 
Guayacancillo. See Guajacum sanctum. 
Grosourdy (2: 389) refers this to G. verticale and suggests that it is possibly 
only a variety of G. officinalis. 
Guayacan de vera. 
A name applied at Yauco to guayacan wood with white and yellow spots. 
Guayaco. 
Reported by Hill among resin-yielding trees. Perhaps ‘** guayacan’’ was 
intended. 
Guayanilla amarilla. 
A tree from all parts of the island; height, 40 to 45 feet; diameter, 12 to 15 
inches. Wood yellow, hard; specific gravity, 1.088; used for cabinetwork. (Exp. 
1857.) 
Guayanilla prieta. 
A tree from the interior of the island; height, 30 to 35 feet (9 to 11 meters); 
diameter, 10 to12 inches (25 to 30 centimeters). Wood dark yellow. hard; specific 
gravity, 1.116; not used. (Exp. 1857.) 
Guayarote. See Meliosma obtusifolia. 
Guayava. See Psidium guayava. 
Guayava pera. See Psidium guayava. 
A name applied to the pear-shaped varieties of the guava. 
Guayavacon. See Myrcia leptoclada and Trichilia hirta. 
Guayavita. See Amomis caryophyllata. 
Guazuma guazuma. GUACIMA DEL Norte. PLATE XXXVI, 
A common tree belonging to the family Sterculiaceae; Stahl ascribes qualities 
similar to those noted under G. tomentosa, and gives the name ** guacima del 
norte.”” (Stahl, 2: 105.) 
A wild tree very common throughout the Antilles and also on the continent. 
It reaches 30 to 40 feet (9 to 12 meters) in height, with a rather straight trunk 
15 to 18 inches (37 to 45 centimeters) in diameter. A variety of the mountains 
with rather small leaves is somewhat larger and taller. Furnishes a rather light 
wood that is undoubtedly resistant, fibrous in texture, light gray in color, slightly 
mixed with rose or flesh color in unequal stripes that produce a handsome 
appearance. This wood has no heart, and some specimens are reddish-gray mot- 
tled almost uniformly. It has no use, but would appear suitable for fences, the 
interior of houses, etc. It serves for fuel, and the light charcoal is good for 
making powder. Specific gravity, 0.552. The’common name is sometimes spelled 
‘‘ouazima ’? and ‘** guasima.’’ (Grosourdy, 2: 385.) 
Guazuma tomentosa. GuACIMA DEL Sur. 
A tree common on the southern coast of the island. (Stahl, 2: 106.) In Jamaica 
is said to be a tree 20 to 25 feet (6 to 8 meters) high; foliage and fruit eaten by 
cattle. The light wood is used for making sugar hogsheads. 
Guazuma ulmifolia. See Guazuma guazuma. 
Guerrero. See Hupatorium dalea, E. portoricense, and EF. resinifluum. 
