insertis Ornato, lamina in ambitu suborbiculari, antice valde 
biloba, margine crenulata, disco longitudinaliter incrassato in 
medio, toto labello 17 mm. longo, 12 mm. lato; columna cylin- 
drica, usque ad 7 mm. longa; ovario cylindrico, obscure alato, 
usque ad 7 mm. longo. 
Colombia: DEPT. NARINO, on road Barbacoas-Tuqueres, 
SCHMIDTCHEN s.n.! Type! (W). 
Cybebus Garay, gen. nov. 
Etymology: Greek Kybebos = stooping, with head bent, in 
reference to the rectangularly bent flowers. 
Sepala inter se breviter in tubum cylindricum, arcuatum 
connata, deinde libera, arcuato-patentia. Petala sepalo postico 
conniventia. Labellum horizontale, naviculare. Columna re- 
ctangulariter arcuata, dimidio superiore porrecta, libera, di- 
midio inferiore sepalis connata, et cum eis pedem elongatum, 
arcuatum formans; clinandrium amplum; rostellum transver- 
sum, 3-lobum, lobo intermedio lineari-triangulo; stigmata 2, 
sub rostello confluentia. 
Herbae terrestres elatae, grandiflorae; radicibus fasciculatis 
tuberosis; foliis basilaribus, plurimis, petiolatis; scapo erecto, 
Vaginato, supra laxe paucifloro; bracteis prominentibus, 
ovariis longioribus; floribus speciosis, magnis; Ovario cylin- 
drico, sessill. 
Type: Cybebus grandis Garay 
Species singula, adhuc nota, Colombiana. 
This new genus is closest to Mesadenus Schltr. in the struc- 
ture of the rostellum and in the general appearance of the 
flowers. The rectangularly arcuate column with a long foot, 
and the tubulose base of the sepals readily differentiate this 
genus from the other members of the Spiranthes alliance. 
Cybebus grandis Garay, sp. nov. 
Terrestris, erecta, usque ad 50 cm. alta; radicibus fas- 
ciculatis, tuberosis, villosis; foliis basilaribus, plurimis, in 
specimine nostro 5-nis, petiolatis; petiolis canaliculatis, basin 
imbricantibus, usque ad 10 cm. longis; laminis oblique ovato- 
ellipticis, acutis, basi acuto-cuneatis, usque ad 12 cm. longis, 
15 
