112 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
struction of country houses. Specific gravity, 0.3880. 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. TrRESCAPEZAS. 
Family Rubiaceae; an herb. (Stahl, 5: 80.) 
Cera. See Sapium 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. PuatTE XXYV. 
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 grandiflorus. 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 swartzii. SeBUCAN. 
A fleshy plant, 3 meters high, found on the southern coast of the island. (Stahl, 
4: 187.) 
Cereus triangularis. PITAJAYA. 
A fleshy plant, 1 to 3 meters high, found on rocks and decayed trees. (Stahl, 4: 
187.) . 
Cerezas. See Cordia collococea, C. vitida,and Malpighia coccigera, 
Cerezas blancas. See Cordia alba. 
Cerezas cimarronas. See Cordic clliplica, 
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 for a Porto Rican plant. In Cuba the naine is 
said to be used for Mvostemma caribaewmn, 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. (Stall, 
4: 141.) 
Cestrum nocturnum. DAMA DE NOCHE. 
Family Solanaceae; an ornamental shrub cultivated in gardens. It has white 
flowers, very fragrant at night. (Stahl, 4: 140.) 
Chamaecrista diphylla. SEN br bos HOJAS. 
A low shrubby herb differing from the other species of this genus and Cassia 
in having two obovate leaflets and very lurge stipules. (Stahl, 3: 116, as Cassia 
diphylla, ) 
