XXXIII. On the Identity of three supposed Genera of Orchideous Epiphytes’In 
a Letter to A. B. Lampert, Esg., V.P.L.S. By Mr. Roserr H. ScuowsUnck. 
Read November 15th, 1836. 
IN a letter which I had the pleasure to address to Mr. Bentham, on the 
28th of June last year, I informed him of a remarkable Orchideous plant, 
from appearance a Monachanthus, which on one side of the bulb produced a 
scape with six flowers of Monachanthus viridis, and two of the Myanthus bar- 
batus, while a second scape of the same bulb had twenty-five blossoms of the 
Myanthus barbatus. This plant was in possession of Mr. Reiss, who, when 
both scapes were in full flower, took the accompanying drawing (Tas. XXIX.) . 
of it, and preserved the stem with the flowers of Monachanthus viridis and 
Myanthus barbatus in spirits, which I have likewise the pleasure to send 
herewith, and beg you to present it in my name to the Linnean Society. _ 
If the circumstance of a bulb of the Monachanthus producing conjointly 
the flowers of its own genus and Myanthus had occurred only in this instance, 
it might be considered one of those freaks of Nature which not unfrequently 
occur; but the case just quoted is not singular, and has been observed at least 
once more in a collection of Orchideous plants belonging to a lady, where the 
same species of Monachanthus produced also flowers of the Myanthus bar- 
batus. 
The thought impresses itself, therefore, forcibly upon me, that the genera 
Monachanthus, Myanthus, and Catasetum form but one genus, and in this 
conclusion I am borne out by the following observations. 
A vigorous plant, which produced at its former state of inflorescence the 
flowers of Monochanthus viridis, had two months ago a seape with flowers of 
Catasetum tridentatum; this occurred at Mr. Wortman's collection at Canal, 
No. 1. : 
Mr. Bach, an enthusiastic collector of Orchideous plants, sowed the seed 
