marginal obscure fleshy mammillate callosities on each 
side at the base, with the margins upturned and slightly 
undulate, puberulent on the margins and outer surface; 
apical portion (above the constriction) flat and spreading, 
broadly ovate to elliptic-subquadrate, broadly rounded 
to subtruncate or lightly retuse at the apex, with the 
margin somewhat undulate-crenulate ; disc with a sulcate 
cinnabar or deep orange callus on the lower portion. Col- 
umn clavellate, about 1.2 cm. long, toothed at the apex. 
This species is closely allied to Spiranthes hyemalis A. 
Rich. & Gal., but differs from that species in several char- 
acters. Spiranthes stolonifera is a rigidly erect, aphyllous 
plant which develops tuber-bearing stolons. The stem- 
sheaths are closely appressed and are always abruptly sub- 
obtuse to acute. The sepals and petals are always obtuse 
to acute. Plants of S. hyemalis rise from a cluster of fusi- 
form-thickened roots and the stem, which is commonly 
flexuose, is leafy below and provided above with rather 
loose sheaths which are acuminate and divergent at the 
apex. The sepals and petals are ordinarily long-acuminate. 
GvuaTEMALA: Huehuetenango, Sierra Cuchumatanes, rocky ridge, 
beneath pines, alt. 11,200 ft., Sept. 15, 1934, 4. F. Skutch 1254 (Herb. 
Ames); Sierra Cuchumatanes (north slope), terrestrial in mossy 
ground, open woods, fls. white, the portion of the labellum which 
forms the corolla-tube orange, alt. 10,000 ft., Aug. 23, 1934, 4. F. 
Skutch 1094 (Tyre in Herb. Ames No. 60791). 
Spiranthes prasophylla Peichb.f. var. cleistog- 
ama Ames & Correll var. nov. 
Scapo longiore folia multo excedenti et spica conspicue 
secunda et floribus inapertis a specie differt. 
Plant slender, epiphytic, weakly erect, glabrous below, 
pubescent above, 10-80 em. tall. Scape slender, two to 
three times longer than the leaves, provided with several 
acuminate bracts. Leaves basal, several, clustered, mostly 
subsessile, occasionally shortly petiolate; lamina elliptic- 
[ 65 
