TY CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
struction of country houses. Specific gravity, 0.380. The bark in some species is 
spineless. (Grosourdy, 2: 363.) 
Centella asiatica. YERBA DE CLAVO. 
An herbaceous annual, growing in moist places. (Stahl, 4: 194.) 
Cephaelis triplocephala. TRESCAPEZAS. 
Family Rubiaceae; an herb. (Stahl, 5: 80.) 
Cera. See Sapiwm sebiferum. 
Cerasus occidentalis. See Prunus occidentalis. 
Cereipa. : 
Under this name flat, oily seeds with a reticulated shell, said to be useful in 
the form of a liniment made with rum, and a bark used as an ingredient of a 
refreshing drink, were sold in the market of Ponce. 
Cerero. See Myrica cerifera. 
Cereus. PLATE XXV. 
A large genus belonging to the family Cactaceae. 
Numerous species occur in Porto Rico, particularly about Coamo and in the 
vicinity of Guayanilla. One species collected near Guayama bore large edible 
fruits with a delicate and very refreshing flavor. This species might well deserve 
cultivation. 
Cereus grandifiorus. REINA DE LAS FLORES. 
Family Cactaceae; a fleshy plant, with large, fragrant, white flowers, found in 
all the Antilles. (Stahl, 4: 188.) 
Cereus quadricostatus. 
From vicinity of Guayanilla. 
Cereus swartzil. SEBUCAN. 
A fleshy plant, 3 meters high, found on the southern coast of the island. (Stahl, 
4: 187.) 
Cereus triangularis. PITaJAyaA. 
A fleshy plant, 1 to 3 meters high, found on rocks and decayed trees. (Stahl, 4: 
187.) 
Cerezas. See Cordiu collococca, C. nitida,and Malpighia coccigera. 
Cerezas blancas. See Cordia alba. 
Cerezas cimarronas. See Cordia elliptica. 
Cerezo. 
‘*Cherry tree;’’ according to Captain Hansard the specific gravity is 0.61. 
Cerezo commun, cerezo de la tierra. See Ciccu disticha. 
Cerillo. 
A specimen (no. 22) not yet identified was obtained at Lecheria under this 
name, not previously recorded fora Porto Rican plant. In Cuba the name is 
said to be used for Exwostemma caribaewm, a rubiaceous tree, also called ** managua 
de costa,’ for which *‘ cuero de sapo”’ is given by Stahl. ‘* Cerillo de costa’’ and 
‘**cerillo de loma’’ are also in use in Cuba for other plants. 
Cestrum laurifolium. GALAN DEL MONTE. 
Family Solanaceae; a shrub 3 to 4 meters high, found in waste places. (Stahl, — 
4: 141.) q 
Cestrum nocturnum. DAMA DE NOCHE. 5 
Family Solanaceae; an ornamental shrub cultivated in gardens. It has white — 
flowers, very fragrant at night. (Stahl, 4: 140.) 4 
Chamaecrista diphylla. SEN DE DOS HOJAS. , 
A low shrubby herb differing from the other species this genus and Cassia © 
in having two obovate leaflets and very large stipules. tahl, 3: 116, as Cassia ‘ 
diphylla. ) 

