Page 1 two. 
Sept. ?5,th, '?1. 
5,. In working 1 up Ponthievs and Cranichis careful research will be- 
necessary,' as the species seem to have been indiscriminately placed, 
6. Tracing's are much needed of your new Central /merican species 
published in Fedde P'epert. XVT(19rO)?5,7, XVT(19?C) Pecas IXVT-irm. 
Fndesielia, 1 Chordrcrbyncha Fndresii, C. Feicherbahiana and species 
described in Pecan PX'IX. 
7. Pecs a I-XV is the last one that T have as a reprint. 
£. Pr. Fedde has sent the publications T have referred to in my 
letters. I real ize' now that the Orch. Cen.tr. /ire r. was not published 
by Pr. Fedde. If you have 1 a spare copy it v.culd be 1 very welcome'. 
9. P am having 1 a print made for you of a very clear arc excellent photo¬ 
graph of Trip bora pive.tpruir Fmall. This i s a native of Florida. It doe 
does not differ,- I' think,i from my Cuban material from Carta Clara Frov 
determined as Trip kora cv ben. si's. 
1C.. Tf you are still making new genera,' please- revise the numbers in 
the- CYCTFV before we get to the final proof of Grebya and Trot rip.. 
11. T do not believe that we should abandon bread subg'eneric group¬ 
ing's toe hastily. If we split up every group that will stand euldiv¬ 
ision, the future will be horrible for those who attempt to identify 
occhid species. The submenus is a great safeguard against generic 
synonyms. fn<? T am unable to understand why a subpenuf should mono¬ 
graph better when physically separated from its g'enus than when i n- 
cluded in ii. It may seem more final to pull out a small group and 
treat it as a whole, but have we done more than fool ourselves: a 
change in the scale of' the thermometer does not alter the.' temperature-. 
Furthermore',! cl assi fi cation is for convenience' in the final analysis, 
and in the- meant,line is for the- use of those botanists who are not 
specialists In detecting the- infinitesimal steps in structure that the 
close student in Me delfTium magnifies into leaps. let us be cautious 
but not supercauticue in our attitude toward segregation. If T could 
see real utility in g'erus making 1 T would praise it. Perhaps I' am a 
victim of that mental rear-si e'htednees that characteri zes one who links 
the younger genedatlon of scientific irrr to the older, /s T contem¬ 
plate .ohe type of work that comes from those who adopt every fad that 
makes for change in science' and art, T begin to realize that the- old 
time conscientious groping 1 for truth in an atmosphere of precise 
thought is passing'. 
If. In your flora of Colombia you give both Vabenaria maculosa and 
fiabenaria monorrkisa. Po you recognize two speciesjhere? /nd how about 
synonymy?' 
