COOK AND COLLINS—-ECONOMIC PLANTS OF PORTO RICO. 119 
Clitoria ternatea. BEJUCO DE CONCHITAS. 
A woody annual vine, with handsome blue and white flowers; a native of the 
East Indies, cultivated in gardens as an ornamental, and frequently escaped in 
waste places, including dry rocky hillsides. Our specimens were collected near 
Jobo. (Stahl, 3: 56.) 
Clove. See Eugenia aromatica. 
Clusia acuminata. CUPEILLO. 
Family Guttiferae. (Stahl, 2: 124.) 
Clusia cartilaginosa. 
From Cayey; Adjuntas. 
Clusia gundlachi. CUPEY DE ALTURA. 
A shrub, 3 to 5 meters high; grows above 1,000 feet (300 meters) altitude. The 
resin is used for rheumatism. From Mariacao and Luquillo. (Stahl, 2: 122.) 
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Clusia krigiana. CUPEI. 
A shrub or small tree of 3 to 15 meters, reported from Sierra de Luquillo (El 
Yunque) and from the vicinity of Utuado. 
Clusia rosea. CUPEY. PuaTE XXVIII. 
A wild tree or shrub 3 to 10 meters high. The resin is useful in rheumatism. 
(Stahl, 2: 121.) 
A wild tree that grows usually as a parasite on other trees, which are often killed 
by it. The roots spread downward over the trunk until the ground is reached, 
when other roots are formed, and the tree finally comes to be supported by its own 
trunk. When grown entirely in the ground, the trunk will not be so tall but 
thicker and denser. The diameter is from 18 to 24 inches (45 to 60 centimeters), 
and it sometimes reaches a height of 30 or 40 feet (9 to 12 meters), The wood is 
reddish and is used only as fuel. Specific gravity, 0.876—(Grosourdy, 2: 378). 
Sometimes called ‘‘ balsam fig ”’ or ‘‘ balsam tree.”’ 
Cnicus portoricensis. See Caurduus mexicanus. 
Cobano. See Stahlia maritima. 
Cobana negra. 
Makes pretty walking sticks, perfectly black, very similar to ebony, a smoky 
but not a jet black; takes a high polish. 
Cobano. 
A tree from the eastern parts of the island; height 50 to 60 feet (15 to 18 meters), 
diameter 25 to 30 inches (60 to 75 centimeters). Wood very dark and very hard; 
specific gravity, 1.227; used in boat building. (Exp. 1857.) Said by Stahl to be 
the same as ** cojobana,’’ a name which he applies to Pithecolobiwm filicifolium 
and to Piptadenia peregrina. 
Coca. See Lrythroxylon coca. 
‘Cocaine. See EHrythroxylon coca. 
Coccocypselum repens. BALSAMILLO. 
Family Rubiaceae; a creeping tufted annual; stems 18 to 20 inches (45 to 50 
centimeters) long, growing in mountains. Bello records the common name 
“yerba de guava.”’ (Stahl, 5: 45.) 
Coccolobis. 
A large West Indian genus of polygonaceous shrubs and trees, many of which 
bear edible fruits known as ‘‘ sea grapes”’ or ‘‘uvas del mar,’’ although other 
more specialized names are used in Porto Rico where the genus is represented by 
numerous species. 
Coccolobis diversifolia. Pawo Bopo. 
A shrub of 15 feet (5 meters) or less, known throughout the West Indies. 
