BRASSIA. ~ 
R. Brown in Hort. Kew., ed. 2, V. 215. LO., gen. cxxaii. 
SEPALA explanata, basi eequalia; lateralibus elongatis acu- 
minatis sepits caudatis. 
PETALA pge see sepalo dorsali sequalia v. minora. 
Lazettum planum, indivisum, ¢. columnd continuum, basi 
bilamellatum, verrucis seepé antepositis. 
CotuMNa nana,aptera. Stigma excavatum 
Poutinta 2, cereacea, postice sulcata ; “ eandiculd Yineari 
arcuata : glanduld ovali. Anthera Oncidu. 
Herb epiphyte, pseudobulbose, Americe tropice. Folia 
pergamenea.  Racemi radicales, simplices. Flores sxanthini, 
speciosi. 
A genus , from which nothing in reality separates 
it except its very 5 hoor saree pera and entire bilamellate tip pea 
with ch ee lateral se pga The inflorescence of Oncidium is however 
usually branched. Ava is readily known by its closed perianth, lip, caudicle, 
and Figen. Mitronta by its auriculate column firmly blended with the base 
of the lip. 
SUBDIVISIONS OF THE GENUS. 
§ A. Evsrassta. Bracts short and inconspicuous. 
1. Lip quite — 
ia 
ip verruco 
§ B. Grumaces. Brsots long, herbaceous. 
$A. 1 
ar R. Brown, in Hort. Kew., V. 215. 
B. sepalis late ibe labello dupld longioribus, petalis a acu- 
minatis labello subzqualibus, labello paulo Lebdesic supra basin 
oblongum in limbum subrotundum — ellis disjunctis 
simplicibus apice dentiformibus basi v 
(A) Flowers large, pale yellow, with a siete sis lip, spotted below the 
tiedeaie artw., p. 94. 
B. raye. Heke in at a 4003. 
Dec. 1, 1853. 
