440 
This species is remarkable in being confined almost entirely 
to the infloresences where it causes most extravagant enlargement 
and distortion of parts. Some of the single flowers are more than 
an inch in length and in spread of petals, the bell-shaped corolla 
being replaced by one that is wheel-shaped and polypetalous. A 
full study of all the abnormal floral organs might show points of 
structure of ordinary blossoms with added clearness and possibly 
throw light upon obscure parts. The ovary, for example, is raised 
a half inch or more above the receptacle and the peculiar placente 
greatly exaggerated. 
The accompanying engraving is made from a photograph of a 
group of a healthy and an affected branch, and shows the abnor- 
mally exaggerated almost polypetalous flowers in striking contrast 
with the corolla bells of the ordinary form. 
Byron D. HALSTED. 
RuTGERS COLLEGE, Aug. 2, 1893. 
A new Station for Epipactis viridiflora (Hoffm.) Reichenb, 
During the last summer one of my former students, Mr. H. B. 
Cushing, B. A., found an orchid on Mt. Royal, which, upon care- 
ful examination, proves to be what he at first took it for, Epipactis 
viridifiora. He first observed it on August 5th, growing on 4 
rather dry, wooded hillside on the western slope of Mt. Royal, 
not far from the Cdte des Neiges road, and in the vicinity of an 
old garden; at that time it was just coming into bloom. On 
August 25th, in the same locality, and within a small area, he 
found thirty or forty more specimens. Most of these had already 
gone out of flower, and some of them had ripened their seeds. 
This discovery is of special interest, since, with the exception 
of the recently found station at Toronto,* there is no other known 
locality for this plant in Canada. | 
In 1820 and the following years, Dr. A. F. Holmes made 4 — 
very thorough examination of the entire Island of Montreal, yet 
this species does not appear in his collection, nor is it to be found 
* Bull. Torr. Bot. Club xx. 36. 
