with the margins of the anterior half minutely erose- 
crenulate and the entire longitudinal central portion 
more or less fleshy-thickened; lateral lobes shallowly 
semiobovate; mid-lobe subquadrate, broader than long, 
about 3.4 mm. long in the middle and 6—6.3 mm. wide 
at the broader base. Column about 8-9 mm. long meas- 
ured on the dorsal surface, slightly arcuate, semiterete in 
section with the anterior surface concave; clinandrium 
3-lobed, lateral lobes broadly rounded, mid-lobe incurved 
and bluntly triangular. Anther hemispherical, 2-celled, 
each cell with three divisions; pollinia 6, complanate- 
ovoid or complanate-pyriform. 
Hewxadesmia falcata is apparently allied to HZ. bifida 
Reichb. f. (of which we have an analytical drawing from 
the Reichenbach Herbarium), but differs by the elongate 
many-jointed stem, by the relatively smaller pseudobulb, 
and by the much larger flowers. Hewxadesmia fasciculata 
Brongn. has narrower and less falcate perianth segments 
and a lip which is not definitely 3-lobed. 
Costa Rica: epiphyte rooted in moss on lateral limb of pasture 
tree in the semi-shade of the Caribbean cloud forest, Zapote, Canton 
of San Carlos, Province of Alajuela, at 1400 meters altitude, ‘‘foliage 
flat; thinly coriaceous; semi-rigid 1 or 2 sessile blades from bulb... 
sepals & petals pale lime green; lip light yellow green; some obscure 
violet lines,’’ August 17,1938, Austin Smith H 1095 (Tver in Herb. 
Ames No. 55744): Cachi, at 900 meters altitude, “‘flor verduzca,’’ 
April 18, 1938, Manuel Valerio 2576. (Large and advanced specimen). 
Epidendrum cordiforme C. Schweinfurth sp. nov. 
Herba parvula, superne praesertim multo ramosa, late 
patens. Caules tenues, vaginis pustulosis fere omnino ob- 
tecti. Folia parva, disticha, saepe subopposita, elliptico- 
oblonga vel ligulata, in vivo carnosa, in sicco saepe 
conduplicata et arcuata, apice rotundato-bilobulata. In- 
florescentiae saepissime uniflorae, subsessiles. Sepala ob- 
longa vel elliptico-oblonga, acuta vel mucronata. Petala 
[ 47 ] 
