355 Commonwealth Avemue, Boston, Mass. 
April 23d, 1923. 
My dear Mr. Powell: 
Tlirough an upset in my conception of the pass¬ 
age of time, caused by the unsettling influence of home-coming from 
a long absence, my last letter to you was wrongly dated. It was 
written on April 13th, not on the 9th. Please mate the necessary 
change on your copy. 
The manuscript for Schedulao Orchidianae has at 
last reached the printer's hands. It will contain forty new species 
from Central America and some critical notes that will be of deep 
interest to you. The new species are chiefly from Lankester. There 
is a new genus, too. This I have named Lankesteriella. 
This has been a profitable week for the herbarium. 
I am now incorporating a large package of duplicates from the Reich- 
enbachian Herbarium recently received from Vienna. Most of the 
material represents Costa Rican species, many of them from the class¬ 
ical Rndres series! 
^ankester's Hew specimens have given me a devillis 
own job. So many fragments'. And 3ome of the new species of Lepanthes 
and Pleurothallis with only a single flower. It hurts to mutilate 
the evidence of a new thing. But what can one do. I sincerely hope 
that in the future Hr. Lankester’s specimens will be ample enough 
to leave at least a flower for posterity to judge me by. Yet I am 
well satisfied to have anything from Costa Rica and I am not com- 
plianing over-loudly. 
I did so want to meet Lankesterl I am sure a 
meeting would have made our correspondence more vital. In the last 
package I received from him I found some wonderful things. That is 
rare species that match Reichonbachian species in a most delight- 
