48 Rhodora [FEBRUARY 
should eventually prove to be a distinct species, the name of A. campy- 
lopterum would be appropriate.” ! 
Here, apparently, is the first and only time (except that Kunze 
subsequently listed it without comment) that the common plant of 
the New England and Canadian uplands has been given the recogni- 
tion it deserves. Except in stature, broader fronds and more elongate 
irregularly triangular lower pinnae, the plant is close to Dryopteris 
spinulosa and in our northern forests certainly grades into it. As a 
variety, however, it deserves recognition as 
DRYOPTERIS SPINULOSA (Miill.) Kuntze, var. americana (Fischer), 
n. comb. Aspidium spinulosum americanum Fischer according to 
Kunze, Am. Journ. Sci. ser. 2, vi. 84 (1848), not A. americanum 
Davenp. Am. Nat. xii. 714 (1878). A. campylopterum Kunze, 1l. c. 
(1848). A. spinulosum, var. dilatatum, forma anadenium Robinson, 
Ruopora, ix. 84 (1907).— Greenland and Labrador to British Co- 
lumbia, south to the uplands of New England, Pennsylvania, Michi- 
gan, Idaho and Oregon, and on the mountains to North Carolina and 
Tennessee. Also eastern Asia. 
Gray HERBARIUM. 
1 Kunze, Am. Journ. Sci. ser. 2, vi. 83, 84 (1848). 
Vol. 17, no. 198, including pages 1 to 32, was issued 6 February, 1916. 
