ODONTOGLOSSUM. (8) LEUCOGLOSSUM. 
§ 3. LeucoGLossum. CoLUMNA AURICULATA V. APTERA. 
LABELLUM UNGUE LONGO LINEARI (SEMPER BILAMEL- 
= pigs: ALBUM AUT PURPUREUM. 
delicate fi and never show 
the Sree tendency to Soar a vallow colour in their lip. "Yellow indeed 
is unknown among them except in the two plates that surmount the unguis 
of the lip. 
* 18, O.stellatum. Lindley, in Bot. Reg. 1841, mise. 25. 
QO. pseudobulbo ovali compresso, folio solitario lanceolato 
recurvo, scapo subbifloro, bracteis ovarii triquetri medium haud 
attingentibus, sepalis petalisque eequalibus linearibus acuminatis 
herbaceis, labello rhomboideo subrotundo grossé dentato appen- 
dice unguis truncaté quadridentata apice libera. 
Wild in Mextco—Hartweg ; GuaTeMaLa, Volcan del 
Fuego and Cuesta of Argueta—Skinner, (v. 8. Sp.) 
Of eget Flee dis cto oa m Ww a Mies a 
~ sepals and petals being Se ee 
faintly spotted or rather Res domed with pacple, Ti hank pave white Lp : 
* 19. 0. Ehrenbergii. Link, Klotzsch, and Otto, ic. p. 38, ¢. 
16. Pazxton’s Flower Garden Sire gleanings, no. 496, te. 247. 
O. pseudobulbis ceespitosis globoso-subelongatis compressis, 
> foliis solitariis ellipticis acutis membranaceis rigidis margine 
subreflexis, scapo unifloro medio articulato bibracteato, sepalis 
lanceolatis acuminatis dorso longitudinaliter carinatis patentibus, 
petalis latioribus oblongis acutis utrinque attenuatis recurvis, 
bello subcordato acuto undulato crenulato: lamellis unguis 
integerrimis anticé in rostrum obtusum breve confluen- 
tibus, columna apter4 puberula. 
ihn Mexico; on oaks near San cco on the banks of 
the ane river—C. Ehrenb ore 
bi 
is hardly di tinguishable from 0. Resid, to which t famnacly referred it; but 
it seems to have a dwarfer habit, smaller flowers, and especially thin delicate 
ee + gotten eran aldose the lip too is acumi- 
nate, not rounded, each stem bears but one flower, and the processes at the 
— = the lip are white, not yellow, and join into an undivided apex instead 
a two-lobed one. It is just intermediate between 0. Hows and 0. stellatum. 
* 20, 0. Rossii. Lindley, Sert. Orch. i 
| 1839, is, ey. ch. sub t. 25; Bot. Reg. 
0. —_ ovatis czspitosis ancipitibus monophyllis, 
foliis oblongo-lan a seapo radicali subbifloro longioribus, 
- carinatis inatis is lineari 
lat is carinatis ea ar patentibus, petalis oblongis obtusis 
lutis, labello subrotundo-ovato emarginato ‘undulato lamellis 
