MAXON—RELATIONSHIP OF ASPLENIUM ANDREWSII. 3 
of the European material, especially with the Devonshire specimen 
cited. The differences consist principally in its more broadly deltoid 
fronds and perhaps in its shorter stipe; the stipes of the two large 
fronds of the type, however, are incomplete, and one of the fronds 
-isseen to be malformed. Through the generosity of Professor Nelson 
one of the smaller fronds of the type has been presented to the 
National Herbarium. 
The collecting of more adequate material of A. andrewsi at the 
type locality, which is, I believe, not very readily accessible, would 
be of the greatest interest as throwing light upon the extent of 
variation in the American plant and its relationship to the Old 
World forms; and it is hoped that the publication of illustrations 
of the type specimens (Pls. 1 and 2) may assist in calling to the atten- 
tion of collectors in the Rocky Mountain region the main characters 
of a plant which has remained so little known since the time of its 
description. The original locality has, indeed, been revisited by Prof. 
E. Bethel, who collected further specimens. Of these a small plant 
has recently been figured in the Fern Bulletin, with notes by Mr. Clute.' 
A somewhat similar instance of distribution among the ferns 1s 
that of Asplenium septentrionale, a species which iscommon in Europe, 
occurs in the Caucasus, the Himalayas, and Tibet, and in North Amer- 
ica ranges from the Black Hills of South Dakota (Rydberg 1194) to 
New Mexico (several collectors), Arizona (MacDougal 68), Colorado 
(several collectors), and Wyoming (A. Nelson 8900), and is known even 
from the San Pedro Martir Range of Lower Califorina (Brandegee, 
May 18, 1893). Specimens from all these localities are in the Na- 
tional Herbarium. 
1Fern Bull. 19: 3. Frontis. 1911. 
