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t C/pper surface nearly or qtiite naked; fron d s rarely more than twice
pinnate.
s. C. graciUitna, D. C. E a t o n (California to British Columbia).
t 1 Upper surface decidedly pubescent: fron d s thrice pinnate in welUeveloped
plants.
9. C. lanuginosa, N u t t a l l (Illinois to the Rocky Mountains
of British America, Colorado, and Arizona).
10 . C. tomentosa. L in k (Carolina to Texas).
1 1 . C. Eatoni, B a k e r (Texas to Arizona).
** F ro n d covered beneath with imbricated scales, but not tomentose.
1 2 . C. Fendleri, H o o k e r (Texas to California).
1 3 . C Clevelandii, D. C. E a t o n (California).
*** Under surface o f pinnules both tomentose and scaly.
14 . C. myriophylla, D e s v a u x (Nevada to Arizona).
1 5 . C. Lindheimeri, H o o k e r (Texas to Arizona).
§4. A l e u r it o p t e r i s .— Involucresvarious.confluentordistinct Fronds
covered beneath with a white or yellow powder.
16. C. argentea, H o o k e r (Alaska, doubtfully).
P l a t e IT — F ig . 2.
C H E IL A N T H E S V E S T IT A , S w a r t z .
Clothed L ip -F e rn .
C h e i l a n t h e s v e s t i t a : — Root-stocks creeping, entangled,
covered with narrow light-brown scales; fronds herbaceous in
texture, six to fifteen inches high, oblong-lanceolate, hirsute, like
the blackish and shining stalks, with straightish prominently
articulated rusty hairs, bipinnate; pinnsg triangular-ovate, the
lower pairs rather .distant; pinnules flat, ovate-oblong, obtuse,
crowded, more or less toothed or incised, the ends of the roundish
or oblong lobes reflexed, and forming separate herbaceous involucres,
which are pushed back by the ripened sporangia.
Cheilanthes vestita, S w a r t z , Syn. Fil., p. 128 (180Ó). — S c i ik u h r , Krypt.
Gew., p. 116 , t. 124. — G r a y , Manual, ed. i., p. 625. — E aton, in
Gray, Manual, ed. v., p. 659. — H o o k e r & B a k e r , Syn. Fil.,
p. 134. — M e t t e n iu s , iiber Cheilanthes, p. 29.
Adiantum vestihcm, S p r e n g e l , Anieit., p. 1 1 2 (1804) ; Eng. version, p. 135.
Acrostichum hispidum, Bose o’A n t ic , fid e Sprengel.
Adiantum hispidum, Bose, fid e Swartz.
Polypodium lanosum, M ic h a u x , in herb.!
Nephrodium lanosum, M ic h a u x , FI. Bor. Am., ii., p. 270! (1803.)
Aspidium lanosum, S w a r t z , Syn. Fil., p. 58.
Cheilanthes lanosa, D. A. W a t t , in Journal of Botany, February, 1874,
p. 48 : not of Moore, Index F i l , p. 245, nor of Eaton, Mex. Boundary
Botany, p. 234, which synonyms belong to Ch. lanuginosa,
Nuttall.
- A N * I . .