122 MISSOURI BOTANICAL GARDEN BULLETIN 
described (mostly by v. Warscewicz) is quite large. I name 
here Habenaria Warscewiczti Schlitr., Masdevallia Living- 
stoneana Roezl & Rehb. f., Epidendrum Oerstedui Rehb. f., 
Brassavola lineata Hook., Cycnoches Dianae Rehb. f., C. War- 
scewiczit Rehb. f., Catasetum bicolor K1., Lycaste brevispatha 
K1., and a long list of Oncidium species. 
‘‘As especially remarkable new species should be men- 
tioned: Pleurothallis Powellii Schltr., P. Hunteriana Schitr., 
Epidendrum Hunterianum Schltr., E. porphyrophyllum 
Schltr., EZ. Powellii Sehltr., Odontoglossum Powell Schltr., 
Osmoglossum acuminatum Schlitr., and Ornithocephalus 
Powellai Schltr., as also all Cyenoches species. 
‘‘Epidendrum stands far above all the others in the col- 
lection as the richest in number of species, with 34 species of 
which 12 appear to be new; then follows Oncidium with 15 
species (4 new), and 2 not yet successfully determined. Here 
belong Pleurothallis with 14 species (9 new) of which, how- 
ever, I expect several more, and Maxillaria with 11 species 
(6 new). In my 1918 summary of the Panama orchids Epi- 
dendrum was first with 18 species and then Oncidium with 
12, while of Pleurothallis only 3 species were known. We see, 
therefore, how an entirely new picture has been unrolled be- 
fore us. I could then give 54 genera as occurring there (one 
of which has since been retired, making 53). Now, through 
the investigations of Mr. Powell, we can add 19 more genera. 
There are, then, 72 genera. 
‘As I perceive from the collection, Mr. Powell’s collecting 
on Chiriqui has not been at over 5,000 feet altitude. It can, 
however, be expected that many species will be found above 
this point that are not yet in the collection. From the testi- 
mony of Warszewicz there must be an entirely different 
luxurious orchid flora between 7,000 and 8,000 feet altitude. 
At this altitude occur the, as yet not rediscovered, Cycnoches 
aureum Ldl., Sobralia Warscewiczti Rehb. f., Oncidium brac- 
teatum Rehb. f., O. Warscewiczui Rehb. f., and indeed also the 
Fregea amabilis Rehb. f. 
‘‘A district quite unopened botanically are the woods which 
stretch from the canal to the Colombian border. They would 
certainly furnish a large number of new species which must 
live in their primeval depths. Here would be found many 
humus-dwellers, above all Habenaria species and Spiran- 
