but the basal and apical margins strongly adnate to the 
column, 8-lobed near the apex with the mid-lobe de- 
curved in natural position, linear-spatulate in outline 
when expanded, shortly unguiculate with the claw adnate 
to the walls of the sepaline sac, with a pair of fleshy au- 
ricles at base, about 84.5 mm. long from the apex of the 
mid-lobe to the tip of the retrorse auricles and about 6.5 
mm. wide just below the mid-lobe; mid-lobe suborbicu- 
lar-ovate, trilobulate at the broad apex, about 4 mm. 
long and 4.5 mm. wide near the base; dise with the basal 
and middle portions conduplicate and densely pubescent 
on both surfaces, slightly dilated below. Column long 
and slender, about 20 mm. long, pubescent on the an- 
terior face (minutely so above, strongly so below), ex- 
tended into an adnate foot about 7 mm. long; rostellum 
oblong-ligulate with erose-truncate apex. Pedicellate 
ovary nearly twice exceeding the sepaline spur. 
Spiranthes curvicalcarata represents a true Pelexia if 
that genus can be maintained. It appears to be allied 
to the Colombian Spiranthes hamata (ScAltr.) C. 
Schweinfurth comb. nov. (Pelexia hamata Schltr. in Fedde 
Repert. Beihefte 7 (1920) 68). From that species, how- 
ever, it differs in having more numerous short-petioled 
leaves, larger flowers, petals which are pubescent on the 
anterior margin and spur distinctly shorter than the 
ovary. 
Junin: La Merced, Hacienda Schunke, at about 1230 meters al- 
titude, ‘humus floor of montafia, plant brownish-red thruout except 
yellowish-white lower lip’’, August 27-September 1, 1923, J. F. 
Macbride 5770 (Tyrr in Herb. Field Mus. No. 536800). 
Spiranthes pumila C. Schweinfurth sp. nov. 
Herba pusilla. Folia plura, basalia, fasciculata, petiola- 
ta; lamina ovata, acuminata, basi late cuneata vel rotun- 
data; petiolus canaliculatus. Scapus tenuis, infra glaber, 
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