BULLETIN 
OF THE 
TORREY BOTANICAL CLUB 
en eee 
AUGUST 1912 
The genus Struthiopteris and its representatives in North America—ll* 
JEAN BROADHURST 
(WITH PLATES 26-29) 
The bases of the pinnae in the species previously described are 
fully adnate; in the following species the lower pinnae, at least, are 
distinctly petioled, except possibly in two species. Usually the 
____ Upper pinnae are more or less adnate or even somewhat decurrent; 
_ when they are free throughout, the fact is definitely stated. 
The petioled species, except in S. Shaferi, rufa, Underwoodiana, 
and Werckleana, have somewhat cartilaginous margins; the swollen 
or glandular vein apices usually give a subserrate to serrate char- 
acter to this margin. When fully revolute, both the serrate and 
the cartilaginous character might pass unnoticed; extremes with 
‘Tegard to both of these characters are found in the non-revolute 
: s, S. varians and S. falciformis. In such plants as S. falci- 
formis the veins could not, of course, be described as “not reach- 
ing the Margin.” 
In the non-petioled species the scales are usually confined to 
‘the rhizome and the basal part of the stipe. In the following group 
the basal Stipe scales are much more numerous, and similar but 
 . Ones are found on the rachis and often on the costae. 
Even the veins of the pinnae may have a delicate araneous covering 
of Tunute scales or fibrils. These araneous scales are definitely 
mentioned when present: the scales of the rachis and costae are 
*t Separately described unless they are very numerous or differ 
. atly from those of the stipe. 
(The Butteriy 
*For Part 1 
for July 1912 (39: "301-356. pl. 24, 25) was issued 23 Jl 1912.] 
see Bull. Torrey Club 39: 257-278. pl. 21, 22. 10 Jl 1912. 
