h 1 H
M / r i
! * > ' ?
¡t i » i
!;Î A d
3 î/: I '1 .1 ■
U ; ) f
. M a
■ M
■i i
i f l l
' i
242 F E K N S OF NORTH AM E R IC A .
14,^13,— Crevices of rock.s, from Colorado to western Texas, New
Mexico and Arizona. Fournier says it occurs in the Valley of Mexico
and in Columbia. The Californian plants formerly referred to this species
I now consider all forms of C. myriophylla.
D e s c r i p t i o n : — The root-stock is slender, creeping and
elongated. Its scales are somewhat spreading, thin, ferruginous-
brown, and destitute of midnerve. The stalks are scattered,
dark-brown, wiry, and, though at first somewhat chafiy, are
at last nearly smooth. The ultimate pinnules or segments
are beaded, round, nearly sessile, entire, or often three-lobed,
especially the terminal ones or those of the very rare sterile
fronds. The segments are about half a line broad. The
scales which copiously cover the lower surface are broadly
ovate, pointed, composed of sinuous cellules, and are entire or
very sparingly ciliate at the base.
This fern is closely allied to C. myriophylla, and imperfect
specimens, destitute, of root-stock and badly preserved,
are not easily distinguished from equally poor examples of that
species. The principal differences between the several species
of this group will be indicated under C. myriophylla.
Plate LX X IX . Fig. 1 - 7 .— Cheilanihes Fendleri, from Arizona
specimens collected by Dr. Palmer. Fig. 2 is a part of a pinna enlarged,
seen, from above. Fig. 3, a pinnule seen from beneath. Fig. 4,
the same denuded. Fig. 5, an ultimate segment partly laid open. Fig.
6, a scale from a Colorado specimen. Fig. 7, a spore.
F E R N S OF NORTH AM E R IC A . 243
%î
m
P l a t e LX X IX .— F ig . 8 -15 .
C H E IL A N T H E S M Y R IO PH Y L LA , D e s v a u x .
Elegant Lip-Fern.
C h e i l a n t h e s m y r i o p h y l l a : — Root-stock short, usually
ascending, often nodose, covered with closely imbricating narrow
dark-brown rigid scales; stalks clustered, two to six inches
high, wiry, castaneous, covered with partly deciduous pale-
cinereous narrow appressed scales and. paleaceous hairs ;
fronds three to eight inches long, ovate-oblong or oblong-
lanceolate, smooth and green or deciduously pilose above,
three to four times pinnate; rachises and midribs densely
covered beneath with pale-brown or ferruginous ovate or ovate-
lanceolate ciliated scales ; pinnæ deltoid-ovate, narrower upwards
; ultimate segments minute (half a line broad), roundish
or roundish-pyrifonn, crowded, innumerable, sometimes (especially
in the sterile fronds) three-lobed or parted, covered beneath
with ovate scales having few or many long tortuous. cilia
passing into branched and entangled hairs, the unchanged
margin of the segments much incurved.
Cheilanthes myriophylla, D esvaux, in Berlin Mag., v., p. 328 ; Journ,
Bot. A p p l, ii., p. 44, t. 13 , fig. I.— H ooker, Sp. Fil., ii., p.
: î