THE ORCHID REVIEW. 203 
TREVORIA CHLORIS. 
THIs is the second of a number of new genera of Orchids which I have 
discovered during the twenty-one years of my travels in the Andes. Both 
Trevoria and my Gorgoglossum are old acquaintances of mine, but owing 
to their great rarity, and their growth in habitats very difficult to reach, 
insufficient floral material have made it hitherto impossible to publish them. 
Gorgoglossum Reichenbachianum, Lehmann (M.S., 1879) was met with 
in December, 1879, in one single specimen, on the Western Andes of 
Ecuador, at an elevation of 300 to 600 métres above sea level. The single 
specimen was duly given to the late Prof. Reichenbach; but the flowers, 
having lost their pollinia, he did not venture to describe the plant, and it 
wandered, with some 3,000 other members of the herbaria, for twenty-five 
years to the grave at Vienna. Some eleven years later, when I knew already 
the fate of my unique Gorgoglossum, I undertook an especial journey to the 
locality in order to secure a few plants for cultivation in one of my estates in 
the Cauca. Only five plants were found, of which to-day one exists in my 
possession and another in that of Sir Trevor Lawrence, the rest having been 
lost on the sea voyage. 
My first acquaintance with Trevoria occurred in 1887. Only three 
specimens were seen, bearing thin, drooping spikes, about 40 cm. long, of 
thickly-set seed vessels, but no flowers. The plants I tried to take to the 
Cauca for cultivation, but, alas! they were stolen from me by some rascal 
at Esmeralda during my absence from the steamer, together with a number 
of other botanical treasures. Nothing more was seen or heard of this plant, 
which, by-the-bye, looked quite novel and interesting, until last year, when, 
during: an exploration of a certain portion of the Western Andes of 
Colombia, with a view of projecting a map on behalf of the Cauca 
Government, a few plants of this species of Orchid were observed. The 
species found in Colombia is, however, quite distinct from that of Ecuador. 
The latter grows at an elevation of 500 métres above the sea, and produces 
flower spikes of from twenty to thirty flowers, the size and character being 
as yet unknown; while the Colombian one inhabits a region from 1,500 to 
1,700 metres above the sea (as far as observed), and bears racemes of only 
three to five—commonly only three flowers. 
As a genus, Trevoria is very characteristic and distinct. Its nearest 
neighbours are Coryanthes, Schlimia, Stanhopea, and Gorgoglossum, but it. 
is distinguishable at first sight from either of them. Trevoria Chloris 
produces large, fleshy, wholly green flowers, placed on the drooping spike 
in the manner of the buckets on a dredger chain. The narrow disc of the 
lip, and the thick coriaceous process at its base, are the only different- 
coloured organs in the flower; they are pure white. Both from a 
