‘ OCTOBER, 1910.} THE ORCHID REVIEW. 293 
are markedly different from the preceding in habit, the solitary flowers, and 
in the total absence of pseudobulbs. They keep steadily growing without 
resting, and in several cases produces flowers at various seasons of the year. 
Huntleya ranges from the West Indies to Brazil and Colombia, and has 
‘about eight species, with a very strongly toothed crest. Warscewiczella 
has a somewhat similar distribution, and the species number about a dozen, 
the colour ranging from violet to lilac-purple and white, and the crest being 
rather small. Pescatorea ranges from Central America to Ecuador, and 
contains about sixteen species, differing considerably from the preceding 
in the crest, and the colour ranges from straw colour to white with purple 
tips, and rarely to violet-purple. Bollea differs from all the preceding by 
its very broad column and the enormous crest of the lip. There are about 
eight species, varying in colour from violet-purple to white. Promenza 
contains a few dwarf species, natives of Brazil, the best known being 
P. stapelioides and P. xanthina, but there are two or three others of some- 
what doubtful status. Kefersteinia is closely allied to the preceding, and 
contains about ten very dwarf species, mostly Colombian, several of which 
are very imperfectly known. 
A few other genera which were not included in Zygopetalum are very 
closely allied. . Chondrorhyncha is most allied to Warscewiczella, and 
‘includes about half-a-dozen Central American and Colombian species, of 
which C. Chestertoni is very familiar in gardens. Aganisia has about ten 
‘species, in which the flowers are borne in erect racemes, while Paradis- 
anthus has two species very similar in habit and structure. Acacallis 
cyanea is a very handsome Brazilian plant, sometimes included in Aganisia, 
but distinct in many respects and with much larger flowers, while Warrea 
has about three species, natives of Brazil, Colombia and Peru, with a much 
more globular perianth. Eriopsis is a very distinct Andine genus of about 
four species, in which the flowers are borne in dense racemes. 
Another group is marked by having the base of the sepals united to the 
‘somewhat elongated foot of the column, producing a distinct mentum to the 
‘perianth. Lycaste is widely diffused, from Mexico to Peru, and contains 
about twenty-five species, several of which are very familiar in gardens. 
Paphinia, which was included in Lycaste by Bentham, is nearly allied, but 
‘different in habit, and structure. It contains about four species. Anguloa 
is nearly allied to Lycaste, though markedly different in its globular 
perianth and in the structure of the lip. It extends from Peru to Venez- 
uela, and contains five species. Bifrenaria differs from Lycaste in having 
a racemose inflorescence, and in some structural details. About ten species 
are known, mostly natives of Brazil and Guiana. Xylobium has also a 
“yacemose inflorescence, though different in structure. It ranges from 
Central America and the West Indies to Peru, and contains about twenty 
