255 COmmOnwealth Avenue, Boston, Mass. 
January 14tli, 1924. 
Ky dear Mr. Powell: 
Haro are a fow determinations to keep 
you busy for several minutes. 
2450 (237) Oncidiun confusun Reichb. f. (Kev 133). 
131 Oncidiun Rechingorianum Kraenzl., 
1?7 Oncidiun Rechingorianuaa Kraenzl. 
Those determinations represent several days of hard work on 
all available material. It seems to mo that Schlechter,s de¬ 
termination of Powell 101 and. 177 ms incorrect. This group 
if a puzzling one it 4o true, and I imagine that the last word ab 
about- it is still to be said. Oneidiuo cerebriferuta Reichb.f. 
is a perplexing.epevies because the typo in Herb. Reichb. f. 
consists of single flover. Sirs, Amos made a sketch of this 
flower when she ms in Vienna with me. on that sketch and on 
Reichenbach* 3 figure in Xenia Crchidacea, I lave relied for my 
conception of the species. The tie of the labellum in 161 A 
177 has an inverted-'/-shaped excision, a characteristic that 
is foreign to Oncidiun cerefriferum, but very clear in Oncid- 
iua Rechingerxanua. 1 tax sorry to upset your nomenclature, yet 
you will welcome, I an sure, ray final(j) conclusions. The type 
of Oncidiun hechingerianum came from Costa Rica where it ms 
collected by Rndres. I have very clear photogrphe of the type. 
%36S S $3E II$1 349 tcaphyglottic ierckled Scliltr. 
3425 (211) Scaphyglottis laevilabiun Anas. 
350 Epidondrum otrobiiiferua Reichb. f. Of, Ames 
Orchidaeeac vol. 1. for plate. In cy opinion 3. varecundm 
Schltr. is Dimply 1 . siroblliferma, I cannot sanction the use 
of subtle variation from a preconceived type as sufficient 
warranty for the multiplication of weak species, 
I have been at work on your Ifcodllariasp. recently recei¬ 
ved. I cannot place it. It appears to be a new species. 
Just as soon as the specimens promised in your letter of 
January 2d, reach here, i will give thorn immediate attention. 
Sched. Greh. 7 is still in preparation. that is why you I 
have not received o copy. The Illustrations liave taken much 
time in preparation. I hope to go to press shortly, but I will 
await your package before closing the manuscript, 
ith boot wishes. 
Tours faithfully. 
