361 



DIOSCOREACE^. 



Dioscorea macrofltachya Benth. PI. Hartw. 73 (1841). Flowers staminate. Only 

 a single plant seen, in shady woods. Manzanillo, March 2 to 18, 1891. JS'o. 1329. 



COMMELINACE.S:. 



Athyrocarpus leiocarpus (Beiith.) Eenth. & Hook, in Hemsl. Biol. Cent.-Amer. iii. 

 38lJ (1885) ; Commd'ma Jeiticarpa Benth. Bot. Voy. Sulph. 176 (1844). A weak vine 

 climbing over low hnslies. Colinia, .JaTnuny 9 to February G, 1891. No. 1147. 



Commelina virginica L. Sp. PI. ed. 2. i. Gl (1762). Mauzanillo, December 1 to 31, 



1890. No. 919. 



PALMACE^. 



Cocos (?) sp. A tree, sometimes 100 feet high, 12 to 18 inches in diameter: leaves 

 large and pinnate: sepals and petals 3 each, about equal, broadly ovate, 1 inch 

 long: disk prominent: fruit oblong, 2 inches long; the husk tbin : the wall of 

 the nut i.s thick and hard; endjryo nearly filling the cavity. Across the bay 

 from Manzauillo, December 1 to 31, 1890. No. 1063. 



I have not been able to place these specimens satisfactorily, not having them 

 in Hower, but they seem to have many of the characters of Cocos. The albumen 

 has the taste of the common cocoanut, but it is more oily. The central cavity 

 is almost wanting. The nut is 1-celled and has three eyes near the base. 



The uuts are used in making a kind of soa]>. 



It is variously called *'coqueto/' "Palma de Coquito de aceita," "Coco do 

 aceita." 1 hud tliisfi)rm referred to Elais mclanococca in Antonio Garcia Ctibas' 

 " Mexico, its Trade, Industries, aud Resources." It is certainly not that species, 

 if it really belongs to that genus. 



A second species of palm w.as collected at Munnanillo which I have not been 

 able to determine generically. Six to eight feet high, spiny: loaves palmate; fruit 

 J inch in diameter in small, dense clusters : llowers unknown. In low places. 

 Rare. Manzauillo, December 1 to 31, 1890. No. 964. 



ARACEiE. 



PiBtia stratiotesL. Sp.Pl. ii.963 (1753J. At the mouth of a creek. Mauzanillo, 

 March 2 to 18, 1891. No. 1356. 



NAIADACE^. 



Ruppia maritima L. Sp. PL i. 127 (1753). From the lagoon at Mauzanillo, Decem- 

 ber 1 to 31, 1890. Nos. 926 and 1042. 



CYPERACE^. 



Cyperus canus F. & C. Presl, Reliq. Haenk. i. 179 (1830). Three feet or more high; 

 flower white. Grew in largo bunches uuder tlie shado of bushes upon the river 

 bank. Colima, February 27 and 28, 1891. No. 1304. 

 " Same as F. Mueller, No. 596." N. I>. B. 



Cyperus compressus L. Sp. PI. i. 46 (17,53). Found in opening between mountains 

 and on the beach near lagoon. In the shade of other plants. ManzaniUo, Decem- 

 ber 1, to 31, 1890. No. 1081. 



