104 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Canna. 
Several species of Canna grow wild in Porto Rico; whether they are indigenous 
or have escaped from cultivation is not evident. At Catafio the name ‘‘maraga”’ 
was applied to C. edulis or C. indica. 
Capa blanca. See Petitia domingensis and Cordia alba. 
Color, clear light brown. Very numerous ducts, occurring singly, and evenly 
diffused between the medullary rays. The latter numerous, in distinct parallel 
lines. Structurally similar on the radial section to American beech, the medul- 
lary rays giving a beautiful, fine-mottled, satiny appearance. Tangential section 
unattractive. Straight-grained and suitable for interior finish. Used for rollers 
in coffee-hulling mills. (Hill and Sudworth. ) 
According to Hill ‘‘capa blanca’”’ is Cordia alba, but this identification is 
not seconded, and Stahl gives Petitia domingensis as above. Possibly the 
Cordia identification was inferred from the fact that ‘‘capa prieta”’ is Cordia 
gerascanthus. 
A tree from the interior of the island; height, 65 to 70 feet (19 to 21 meters); 
diameter, 30 to 35 inches (75 to 87 centimeters). Wood white, very hard; specific 
gravity, 0.955; used in boat building. (Exp. 1857.) 
Captain Hansard gives the specific gravity as 0.89. 
Capa prieta. See Cordia gerascanthus and C. gerascanthoides. 
A tree from the interior of the island; height, 30 to 35 feet (9 to 11 meters); 
diameter, 15 to 20 inches (37 to 50 centimeters). Wood light-colored, very hard; 
specific gravity, 0.899; used in boat building. (Exp. 1857.) 
Captain Hansard gives the specific gravity as 0.75. 
Color, rich light brown, with darker streaks and mottlings. Very numerous 
ducts, occurring singly or irregularly, aggregated in twos and threes between the 
medullary rays. Medullary rays numerous, indistinct, straight, parallel lines. 
Wood fibers interlaced, but wood appearing to be straight-grained. Radial sec- 
tion structurally similar to capa blanca. Tangential section somewhat similar to 
dark heartwood of American elm. Handsome wood for interior finish. Used for 
flooring. (Hill and Sudworth.) 
Capa rosa. See Callicarpa ampla. 
Capa sabanera. 
A tree from the interior of the island; height, 55 to 60 feet (16 to 18 meters); 
diameter, 12 to 15 inches (30 to 40 centimeters). Wood dark, very hard; specific 
gravity, 0.978; used in boat building. (Exp. 1857.) 
Described by Grosourdy as a wild tree, reaching 30 feet (9 meters) in height, 
with a trunk 12 inches (40 centimeters) in diameter and furnishing a wood of 
good weight, hard and strong, dark in color and used in the construction of 
country houses and for fences. (Grosourdy, 2: 370.) 
Capacillo. 
According to Captain Hansard this tree grows with ‘‘ yaiti’’ on the calcareous 
foot hills and does not become large. The wood is very hard and has a specifi¢ 
gravity of 0.82, but is used for little except fire-wood. Perhaps the same as 
‘“‘capaillo.”’ 



Capaillo. See Aegiphila martinicensis. 
Capitana. See Dendropremon caribaeus. 
Capitaneja. See Verbesina alata. 
Capparis cynophallophora. PALo DE BURRO. PLATE XXL. 
Family Capparidaceae; a shrub or tree 8 to 25 feet (1.5 to 8 meters) high, found 
along the coast. Collected by Sintenis in the vicinity of Guanica; said to bea 
specific for dropsy. (Stahl, 2: 44.) - 
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