North Easton, Mass, May 26th, 1923. 
My dear Mr. Powell: 
I have moved to the country for the sim¬ 
mer, hut as I intend to visit my Boston laboratory at fre¬ 
quent intervals, dont mage any change in your manner of 
addressing me. 
I hove ieceived some interesting material 
from you in the way of specimens in alcohol. I willtake up 
only one of the species as it will he best to wait unti 1 
the herbarium sheets arrive before discussing the others. 
Nos. 151 & 187 , sent as Epidendrum paehTy- 
oarpum Schltr, seem to me to represent Epidendrum. ionophle^b- 
f lowers 
ium Reichb.f. I wonder if these $YMfI/simply represnt your 
of 
own identifications or if they came feom plants/ifeich Sehlecht — 
er received specimens. E. pachycarpum as represented by the 
type is a much smaller flowered species comparable to the 
herbarium specimen already sent as E. pachycarpum. I find 
that Sehlechter distingu shed E. pachycarpum in part from 
1. ionophlebium by the smooth callus on the base of the lip. 
The bottled flowers show a distinctly hairy callus. They 
also show much larger parts and resemble Eeichenbach’s type 
of E. ionophlebium. Examine your specimens as the plants 
bloom and ascertain what the status ofthe callus really is, 
I have had a suspicion that Sehlechter made questionable 
diagnosis as to this character and that E.pachycarpum is 
simply a small flowered E, ionophlebium. Here is a place 
for Powellian aid. 
I have examined all of the Hasdevallia 
material and I am convinced that as to M. Livingst6neana 
we simply have a variable species. You will be delighted,I 
am sure, with the manner in which I have dis osed of this 
pus ling species when Sohcci. Orch. 5 reaches you. The 
