dobulbosae, caulibus abbreviatis, pseudobulbo minuto 
unifoliato terminatis. Folia sub pseudobulbo pauca, dis- 
ticha, articulata, coriacea, ensiformia. Scapi sub pseudo- 
bulbo axillares, laxe pauciflori, foliis breviores. 
Hintonella mexicana Ames sp. nov. 
Herba perpusilla, epiphytica. Radices fibratae, albi- 
dae. Caules abbreviati, pseudobulbo unifoliato minuto 
terminati. Folia sub pseudobulbo pauca, disticha, ensi- 
formia. Scapi foliis breviores, pauciflori, sub pseudobul- 
bo axillares. Pedicellus cum ovario alatus, glaber. Sepala 
lateralia oblonga, usque ad apicem attenuata, extus per 
medium carinata. Sepalum dorsale simile. Petala oblonga 
vel cuneato-oblonga, usque ad basim leviter attenuata, 
uninervia, apice apiculata, extus per medium leviter car- 
inata. Labellum sepala lateralia aequans, leviter triloba- 
tum; lobi laterales rotundati; lobus medius quadratus. 
Discus infra medium dense glandulosus, prope medium 
callo transverso glanduloso membranaceo ornatus, intus 
infra medium carinatus, prope columnae basim callo vel 
processu pedicellato reflexo ornatus. Columna prope me- 
dium valde constricta, basi in pedem bilobum producta; 
stigma infra columnae medium. Pollinia anguste pyri- 
formia, stipiti longiusculo affixa. 
An epiphytic herb up to 2.3 cm. tall at anthesis. 
Roots spreading, whitish, about 1.5 mm. in diameter. 
Stems ascending from the rhizome and terminating in 
small ellipsoid or globose pseudobulbs which are 2.3-5 
mm. long, monophyllous at the summit with several dis- 
tichous cataphylls. Leaves ensiform, 1—2.3 em. long, 2 
mm. wide, jointed to winged distichous sheaths. Pedun- 
cles lateral, 4-13 mm. long, arising in the axils of the 
equitant leaf-sheaths, commonly 2-flowered, shorter than 
the leaves. Bracts of the inflorescence 1.5 mm. long, con- 
duplicate. Pedicels including the ovary about 4 mm. 
[ 187 ] 
