COOK AND COLLINS—ECONOMIC PLANTS OF PORTO RICO. 101 
Caldo santo. See Argemone mevricana. 
The local mispronunciation of cardosanto. 
Calliandra portoricensis. ACACIA PUERTORIQUENA. 
A white-flowered leguminous shrub, rare on the north side of the island. Our 
specimen (no. 481) was collected along the road between Cayey and Guayama, 
(Stahl, 3: 156.) 
Calliandra saman. See Pithecolobium saman. 
Callicarpa ampla. Capa ROSA. 
A verbenaceous shrub or small tree; specimens were collected by Sintenis at 
Utuado. Grisebach used the name Petitia domingensis. (Stahl, 6: 221.) 
Calocarpum mammosum. 
Family Sapotaceae, the variety occidewm is identified by Pierre from Utuado 
(Sintenis). In Engler this genus is treated under Lucuma. 
Calonyction megalocarpon. See Jpomea bona-nowx. 
Calophyllum calaba. Pato pre Maria, 
Family Clusiaceae; a tree 60 feet (18 meters) high. The oil pressed from the 
seeds is said to be used in lamps. Specimens are auown from Manatiand Ringon. 
Bello calls this species ‘‘marias.’’ (Stahl, 25). Grosourdy (2: 403) varies 
the native name to ‘* maria’? and describes “he plant as a handsome wild tree 
with a dense top, 55 to 60 feet (17 to 18 meters) high, and a long straight trunk 
3 feet (1 meter) or more in diameter, The wood is lasting, rather light, soft, 
fibrous in texture, reddish in color, rather lighter than mahogany. Specific 
gravity, 0.655. This wood is highly appreciated for carpenter work and the 
trunks, when large, serve to make canoes. Planted in rows this tree is sometimes 
used inparks. If the lower limbs are cut off the tree will make a straight growth, 
This operation should be repeated every seven years, and each time a good top 
should be left. 
Calopogonium caeruleum. Jicama. 
A leguminous vine known from Mexico, Peru, and Brazil. (Stahl, 3: 69, as 
Stenolobiwin caeruleum.) 
Calopogonium orthocarpium. 
A small vine with hairy pods; cabo rojo. 
Calotropis procera. ALGODON DE SEDA, PLATE XXII. 
Also called ‘*mata de seda.’? Family Asclepiadaceae; a shrub or small tree 
said to attain a height of 5 meters in favorable situations. The fibers of the seeds 
are twisted into thread by some of the African tribes; the bark is also used as a 
medicine, and from the milk an inferior rubber or rubber adulterant has been 
obtained. This species is native in the tropics of Africa and Asia, but has been 
introduced and widely disseminated in America. According to Stahl (6: 86) the 
height is but 6 feet. Specimens planted along the lower part of the Guayama 
road are 12 to 15 feet (4 to 5 meters) high, but are bushy rather than tree-like. 
The leaves are white or grayish with a heavy bloom, and its whole appearance is 
that of a large milkweed. From the Cape Verde Islands the silk of this milkweed 
is exported in small quantities as ‘‘ kapok,’’ the more common source of which is 
the ceiba or ‘‘ tree cotton.”’ 
Calyptranthes chytraculia. See Calyptranthes sintenisii. 
Calyptranthes krugii. 
Family Myrtaceae; specimens were collected by Sintenis in the vicinity of 
Luquillo. 
Calyptranthes sintenisii. HoJa MENUDA. 
Native names: ‘S Limoncillo’ and ** limoncillo de monte.’’ A myrtaceous shrub 
or small tree indigenous in Porto Rico, Santo Domingo, and Martinique. Reported 
from Luquillo and Anasco. (Urban, Add, 2: 116.) 
