188 allan hancock pacific expeditions vol. 13 



Passifloraceae 



Passiflora holosericea L., Sp. PL 958. 1753. 



Chacagua Bay, Oaxaca, March 21, Elmore D20, vine with white and 

 purple flowers climbing on Chrysobalanus icaco in dry, hot, shaded jungle 

 with sandy soil. 



Tierra caliente from southern Mexico to Honduras, Cuba, Vene- 

 zuela, and northern Colombia; type locality. Vera Cruz, Mexico. 



Vine with flexuous stems and coriaceous, pubescent, 3-lobed leaves, 

 the lobes aristate, bidentate on the broadly rounded base. It is common 

 in the southern low country of Mexico and is known from collections at 

 Mazatlan, Sinaloa, the most northern records, and the Tres Marias 

 Islands. 



Rhizophoraceae 



Rhizophora mangle L., Sp. PL 443. 1753. 



Chacagua Bay, Oaxaca, March 21, Elmore D24^ edge of lagoon. 



From Tiburon Island south throughout the tropics of the Americas ; 

 type from the Caribbean Sea. 



COMBRETACEAE 



Combretum mexicanum H. & B., PL Aequin. 2:159, pL 132. 

 1809. 



Tenacatita Bay, Jalisco, May 8, Elmore lAl, vine growing on trees 

 from dry clay soil in the forest, elevation 10 feet. 



Tierra caliente, Jalisco to Oaxaca, Mexico; type from Acapulco, 

 Guerrero. This collection apparently is the first from Jalisco and con- 

 stitutes a northern record for the species. 



CONOCARPUS ERECTUS L., Sp. PL 176. 1753. 



Tenacatita Bay, Jalisco, May 8, Elmore 1A16, in sand on upper 

 beach. Chacagua Bay, Oaxaca, March 21, Elmore D25, on edge of 

 lagoon. 



On the shores throughout tropical America and in western Africa. 



CoNOCARPUs ERECTUS SERicEus DC, Prodr. 3:16. 1828. 



Chacagua Bay, Oaxaca, March 21, Elmore D21, in moist sandy soil 

 by a lagoon. 



Widely distributed in the American tropics from southern Mexico 

 through Central America to South America and the West Indies along 

 the shores. 



Laguncularia racemosa (L.) Gaertn., f. Fruct. & Sem. 3:209. 

 1807. 



Chacagua Bay, Oaxaca, March 21, Elmore D27. 



