add some mew Central American species to Sohed. Or oh. 6 * i'liie 
nuraberoof the work is at present too much taken up with the 
Philippine novelties that have come to IdUht (luring ray work for 
Merrill * s Enumeration of Philippine plants, Just think what it 
means to put into creditable shape a critical list of all the 
orchids that have boon referred to the Philippine flora, Shis 
list must he my excuse, in part, for any neglect of specimens 
that have come in from Costa Rica* And not/ Merrill wants me to 
work up for the Sarawak Museum a collection of orchids taken 
on Mount Dulit, Borneo. 
Your letter of August first came in this afternoon, 'That 
you say abouttthe Epldendrua Laucheanum mix-up is most inter¬ 
esting* But until I see an abundance of material it will be im¬ 
possible to arrive at satisfactory conclusions. In connection 
with this probi em I have Just received from Mew a flower of Rol- 
fe{s typo of E. I»a.uclMmii3aa , Pleo.se help out In the solution of 
o 
the prbiea. It may mean a little work to collect and press mat- 
t 
©rial that shows variation, but it is so ell worh while to go 
deep into tho perplexities of this orchid riddle, I have Just 
finished a thorough revision of the Philippine species of Appen- 
dlcula. fo do this I had to work over specimens that have been 
accumulating for twenty years. In this case I was overwhelmed 
with material, but the results I I was able to put at rest some 
of those awful doubts that come sooner or later into the thought 
of one who works in a complex flora. Systematic studies are only 
delightful for a conscientious student when the material is abun¬ 
dant. Until I see additional material of some of those Eepanthes 
species cf yours, the fear that I have , perhaps, audulecl things. 
