52 
+ elongatis’. pubescentibus, columnæ pubescentis auriculis 
rotundatis.-—— Oazaca.—— Very like O. Cervantesii, but 
with a deeply cordate very blunt lip and blunt petals. 
11..O. Galeottianum (Ach. Richard in Ann. Sc. 1845. Jan.); 
** pseudobulbis aggregatis 1-phyllis, fol. elliptico lanceo- 
lato acuto; scapo foliis duplo longiore 3-floro; flor. 
albis magnis ; labelli alis erectis obtusis truncatis, lamina 
subcordato-acuminata ; gynostemio margine alato, alis 
angustis longis." ——Mexico.—-— : 
19. O. nebulosum (Lindl. Sertum Orchid. t. 25); pseudobulbis 
diphyllis, foliis oblongis: erectis pedunculo terminali 
erecto sub-4-floro brevioribus, bracteis membranaceis 
seariosis ovario dimidio brevioribus, sepalis membrana- 
ceis oblongis undulatis apiculatis, petalis conformibus 
latioribus basi angustatis, labello sessili basi cucullato 
carnoso limbo ovato acuto dentato: lamellis maximis ro- 
tundatis änterioribus obtusis, columnà apterä pubescente. 
——Mexico.——A much larger plant than O. Cer- 
vantesii, with wavy ‘sepals and petals, and a coarsely 
‘toothed lip. Can it be the O. apterum of Llave? I 
should have thought so if he had not called that plant 
** O. Cervantesii simillimum," an expression which does 
not at all apply to this species. 
13. O. Rossi (Lindl. Sert. Orch. sub t. 25. Bot. Reg. 1839. 
t. 48.—O. Ehrenbergü, Link, Klotzsch, & Otto, ic. 
p. 38. t. 16. — O. acuminatum, Hort.); pseudobulbis 
ovatis cespitosis ancipitibus monophyllis, foliis oblongo- 
lanceolatis scapo radicali subbifloro longioribus, bracteis 
membranaceis carinatis acuminatis, sepalis lineari-lanceo- 
latis carinatis acuminatis patentibus, petalis oblongis 
obtusis revolutis, labello subrotundo-ovato emarginato 
undulato lamellis unguis confluentibus rotundatis denti- 
culis 2 anterioribus obtusis, columnà apterà pubescente. 
——Mexico.—— A small species, with one or two flowers 
only on the scape. The sepals are yellowish green, 
blotched with brown; the petals are white, spotted with 
purple at the base. ‘The lip is pure white, and slightly 
downy. A variety has narrower and darker coloured 
sepals, smaller flowers, and the callus at the base of the 
lip white, not yellow. This ‘seems almost intermediate 
between O. Rossii and O. stellatum ; especially as the 
lip is rather more ovate than in the former species. 
