4 AMERICAN FERN JOURNAL 
It is apparently as abundant in Arizona and New Mexico 
as C. tomentosa is rare in these regions. In a very few 
instances (namely, plants collected in Texas by Jermy, 
in the Huachuca Mountains by Lemmon in 1882, and 
in Mexico by Edw. Palmer) specimens of both have 
been brought together and distributed as one or the 
other species, but there is no certainty that they grew 
in close proximity. At any rate the characters dis- 
tinguishing the two species are constant and quite 
sufficient for their immediate recognition. These may 
be summarized as follows: 
. tomentosa 
and rachises rather 
St Stipe, primary rachis, and lower 
copienihe: clothed with lax side of secondary rachises imbri- 
tawny irs and numerous cate-paleaceous; relatively large, 
subflexuous, ae nearly flat, oblong-lanceolate, ascending 
orm, laxly spreading scales, scales of stipe and primary rachis 
these ern a a and at 
length forming a 
broad, white, distinctly mem- 
branous proper indusium. 
underlaid by numerous, appressed, 
minute, acicular, rigid ones; scales 
of secondary rachises ovate-acum 
inate, widely imbricate, nace 
s ly ma 
egments dense tted- 
tomentose eath, copiously 
and rather coarsely ntos 
ing and joining the fragile seg- 
ents. 
Herbaceous recurved margin of 
whitish, membranous border form- 
ing a very scant true indusium. 
There are additional characters found in the greater 
size of C. tomentosa, its more spreading and dissected 
pinnae, and the shape, number, and relative position - 
of the segments; but these variable features are so 
dependent upon age, vegetative vigor, and seasonal 
condition as to be scarcely of diagnostic importance. 
The Jamaican plant long passing as C. tomentosa is a 
new species, shortly to be described. 
