L
four together, on the ends of the sparingly forked or simple
veinlets.
The sporangia are very dark-colored, and have a ring of
about twenty joints. The spores are globose, and probably
trivittate, but the vittæ have not yet been detected.
The hairs of the surface are usually composed of three
cells, which are fifteen to twenty diameters long, terete, dilated
at the articulations, and those of the lower surface of the frond
containing a little pale-brown endochrome, which settles mostly
in the ends of the cells. The terminal cell is acute at the
free extremity.
The upper surface of Cheilanthes lanuginosa is scantily
furnished with whitish vt^ebby hairs, and is never hirsute-
tomentose as in our present fern.
Plate LXX IV., Fig. 5-9. — Notholæna P a rry i, from .Dr. P arry’s
Utah specimens. Fig. 6 is a pinnule denuded and magnified about
eight diameters. Fig. 7, a part of the same, more magnified. Fig. 8,
a spore. Fig. 9, some of the tomentum, highly magnified, and showing
the nodes perhaps a trifle larger than I have described them.
P late LXX IV . — F ig. 10 - 15 .
C H E IL A N T H E S L IN D H E IM E R I , H o o k e r .
Lindheimer’s Lip-Fern.
C h e i l a n t h e s L i n d h e i m e r i : — Root-stock slender, elongated,
chaffy with rather thin ovate ferruginous-brown scales,
the darker midnerve broad, but not well-defined; stalks scattered,
four to seven inches long, wiry blackish-brown, polished,
at first bearing pale delicate linear-lanceolate slender-
pointed scales and minute paleaceous hairs; fronds three to
five inches long, ovate-lanceolate, three to four times pinnate;
primary pimise ovate-oblong, mostly closely placed ; ultimate
pinnules roundish, bead-like, one-fourth of a line long, very
much crowded, sometimes lobed, the unchanged margin much
incurved; upper surface of frond white-tomentose, lower surface
very chaffy with delicate pale-ferruginous ciliated scales,
those of the ultimate pinnules more and more ciliate and
passing into entangled branched hairs.
Cheilanthes Lindheimeri, H ooker, Sp. F i l , ii., p. lo i , t. cvii., A .—
Mettenius, Cheilanthes. p. 35. — E aton, Bot. M ex . Boundary,
p. 234; b'ems of the South-West, p. 3 1 7 .— H ooker & Baker,
Syn. Fil,, p. 140. — D avenport, Catal., p. 15. ( i T ' l
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