192 
as long as the filaments of the fertile stamens. For an oppor- 
tunity of studying Dr. Rein’s specimens we are indebted to the 
kindness of Professor Fischer de Waldheim. 
886. Dioscorea Bernoulliana, Prain et Burkill [ Dioscorea- 
ceae|; species D, Dugesii, Robins., mexicanae et guatemalensi 
proxima sed omnino glabra et foliis pertenuibus translucentibus 
ex sicco pallide aeneis caulibus laevibus floribus multo minoribus 
facillime distinguenda, | 
Herba omnino glabra; caulis sinistrorsum volubilis, laevis, 
pallide stramineus. Folia ovato-cordata, acute acuminata, sinu 
basali lato saepius breviore, tenuius membranacea, translu- 
centia et pellucido-venulosa, 7-9-nervia, 8 cm. longa lataque; 
CentRaL AMERICA. Guatemala: inter Escomillas et Palo- 
hueco; Feb. 1878, Bernoulli § Cario 847 
Though nearest, among Central American species of the genus _ 
Dioscorea, to D. Dugesii, Robins., the plant described above 1s 
fi 
ay 5) a member of the very different section Brachystigma, 
me, the species of which have but 3 fertile stamens. For 
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their Specimens have been distributed by Mr. J. Donnell Smith 
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from Xalapa, 
