AUG. 189^. FLORA OF YUCATAN MILLSPAUGH. 39 



MARSDENIA, R. Br. 



M. maculata, Hook. 



Island of Cozumel (Gaumer, 1885). 



CONVOLVULACEAE. 

 EVOLVULUS, Linn. 



E. nummularius (Linn.) Linn. 



Yucatan, loc. ignot. (Johnson). 



IPOMOEA, Linn. 



I. Pes-caprae (Linn.) Sweet. 



Convolvulus Pes-caprae, Linn. Island of Cozumel (Gaumer, 

 1885). " Sometimes attains an hundred feet in length." 



I. triloba, Linn. 



Island of Cozumel (Gaumer, 1886). 



I. sidaefolia, Linn. 



Island of Cozumel (Gaumer, 1886). 



I. coccinea, Linn. 



Island of Cozumel (Gaumer, 1886). 



I. Jalapa, (Linn.) Pursh. 



In the more open woods, Mascab Pixoy, Jan. 22, 1895 (148). 



I. Bona-nox, Linn: Oration. XUTXJ. 



Climbing over the highest shrubs among the ruins, Chichen 



Itza, Jan. 20, 1895 (138 and 123). In our specimens the calyx 



is one-eighth the length of the tube of the corolla. Island of 



Cozumel (Gaumer, 1885). 



I. puncticulata, Benth. 



Completely covering an old well house, base of the Cerro 

 Grande, Izamal, Jan. 13, 1895(67). 



I. Jamaicensis (Spreng.) Don. 



Convolvulus Jamaicensis, Spreng. Island of Cozumel (Gaumer, 

 1885 and 1886). 



I. fastigiata, Sweet 



Island of Cozumel (Gaumer, 1886). Open woods Mascab Pixoy, 

 Jan. 22, 1895 (147). 



JACQUEMONTIA, Choisy. 



J. pentantha (Jacq.) Don. Sombaritas azul. AK-IXIU. 



Convolvulus pentanthos, Jacq. Jacquemontia violacea (Vahl) 



Choisy. Island of Cozumel (Gaumer, 1885 and 1886), open woods 



near the Cenote of Ix-kil, Chichen Itza, Jan. 20, 1895 (142) 



Mascab Pixoy, Jan. 22, 1895 (145). 



