37 
OAKES AMES, director. 
BOTANIC CARDEN OF HARVARD UNIVERSITY, 
CAMBRIDGE, MASS. U.S.A. 
My dear Mr. Powsll: 
June 13th, 1922. 
The package of specimens arrived in good 
condition this afternoon. Assapt my beat thanks for this 
most commendable example of good herbarium work. On© or 
two plats need attention. These X will take up as briefly 
as possible. 
You 168 {as represented in Ames Set} which 
Sohlechtor refers to Habenarla avioula Sohltr. is conspec- 
ifio with H. patentiloba Ames. Sohlechter's description 
appeared in June 1981; mine was published in December 1981 
before I received a copy of Sohleohter’s paper. You will 
wish to enter this fact in your reprint from Proa. Biol. Soa. 
Wash. 
Your 162 as represented in the £ew Set is 
a mixture of Habenarla petalodes Lindl. (H. Warscewicsii 
Sohltr. } and” a small flowered speoies, probably referable 
to H. petalodes Uadi. var. mlorantha Helohb.f (Cf. Ames 
OBCHIDAC JAP) IV. p. 264.) This small flowered plant may be 
sufficiently distinct to be described as a new species. 
Your 21E of the Ames Set is Habenarla 
petalodes Lindl. (H. Warscewiozli Sohltr.) 
Habenarla Warsoewiczii is, in my opinion, 
hardly distinct from H« petalodes jj£n&T* The flowers agree 
in structural details with' Lindley's type specimens preserve* 
at 2£©w. The question seems to be: how olose are we to draw 
the lines in our conceptions of speoies. Nothing is gained 
by duelling on trivial details. 
In my letter to you, written yesterday, 
before the specimens now under consideration arrived, I re¬ 
ferred to you 162 of the SCaw Set as having large and small 
flowers. At present I believe the small flowered species re¬ 
presents what Beichenbaoh described as H* petalodes var. mic- 
rantha . Mingled with 162 of the Hew Set~there are large flow¬ 
ers which are surely referable to H. petalodes Lindl. and 
which are equivalent to your 212 ol the Ames Set determined 
by Sohlechter as H. Warsoewiczii . My specimens of H* petalodes 
from Taboga Island are 'identical with your 212. " 
The above remarks should clarify the situ¬ 
ation ^uat a little bit. 
Please keep on the alert for additional 
specimens of the small flowered form. 
I enclose a tracing of Lindley’s H. pet¬ 
alodes,. ~ 
Yours faithfully,. 
