XXXII. CHEILANTIIES. 
, 5.3 
with serrated lobes, the lower margin recurvate. Sori small, narrow linear-oblong occupying the apices of 
the lobes, and chiefly produced on the upper margin. Stipes and raohis dark chesnut-coloured when young, 
becoming blackish when mature, at first scaly throughout with narrow deciduous scales ; lateral, adherent to a 
creeping rhizome. This species has been introduced to the Chelsea and some other gardens, from the establish- 
ment of M. Van Houtte of Ghent, under the name of A. pentadactylon. It is allied to A. trapezifonne, but is a 
more slender plant, with a scaly brown-black rachis, narrower deorsely falcate pinnules, and smaller lineai'-oblong, 
not oblong-rcniform, sori, and is wanting altogether in that delicate green colour which iii A. trapezifonne is so 
strikingly contrasted with the ebony-black smooth stipes ; the pinnules, moreover, are scarcely at all glaucous 
beneath. 
29. A. TiiAPEZiFORJiE, LiniifBUS (A. RiiownoyDEUM, Schkuhr ; A. forviosissimum, Klotzsch). — An erect- 
growing evergreen stove Fern, from Jamaica and other West India Islands, and South America. Fronds 
glabrous, pentagonal, four times pinnate, two to three feet high; pinnules large, bright green, ovato-rhomboidal, 
acuminate, the apices serrate and sub-crenate. Sori large, oblong; indnsium reniform. This is a very beautiful 
Fern, from the contrast of its large delicate green pinnules with the shining black stipes and rachis. The fronds 
are lateral, adherent to a thick scaly creeping rhizome. 
XXXII. CHEILANTHES, Simvtz. 
Sori round, marginal, solitary or contiguous, often becoming con- 
fluent. Indusiuin sometimes reniform, rarely oblong, and including 
more than one sorus. Veins forked; lemiles aivect, their apiices free, 
and sporangiferous. Fronds from a few inches to two or three feet long, 
glabrous, pilose, glandulose, or squamose ; segments of the pinnules 
sometimes very small, concave, and orbicular, — Named from cheilos, a 
lip, and emthos, a flower ; in allusion to the lipj-fonned indnsium which 
covers the fructification. 
With one or twm exceptions, the species of Cheilanthes are small 
plants, less than a foot in height; they are all of very delicate textttre, 
and are mostly natives of elevated regions in tropical or subtropical 
countries. They are best cultivated in an intermediate house, and should 
bo potted in sandy peat soil, well drained ; water being very sparingly 
used over the fronds. During winter they should be kept rather dry. 
The species are often very difficult to determine, unless examined in 
a living state. In the small convex segments of the piinnules, and the paucity of spore-cases, 
they are analogous to Nothochlcena, but from that genus they 
are distinguished by the presence of an indusium. From 
Adiantum they are known by the piosition of the sori, which 
is here produced on the apex of the venules in the axis of the 
indusium, that of being on the indusium. Fig. 33 
represents a small piortion of a frond of Cheilantlies visrosa 
(nat. size). 
1. C. MiCROPTEius, — A ncat dwarf evergreen greenhouse 
Fern, from Quito, Brazil, and the Argentine provinces. Fronds 
slender, linear, four to six inches long, and covered tliroughout with 
glandulose hairs, pinnate ; pinnae numerous, small, petiolate, light 
green, subrotund, concave, and suborenate. Eaohis and stipes brown, 
terminal, adherent to a slender creeping rhizome. Sori consisting of 
a few spore-cases on each segment, which ultimately become confluent. 
2. C. FARINOSA, Kcmlfuss (Pteris, Forskal and Sicartz; Cassf- 
BBEKA, J. Smith; Allosorus, Fred; C. uealbata, Fon ; Pteris 
ARGYROPHYLLA, Swartz). — An exceedingly beautiful evergreen stove 
Fern, from Nepal. Fronds glabrous, triangular, one to one and a half 
foot long, bipinnatifid ; segments oblong-obtuse, the upper surface 
dull green ; densely covered beneath with a white farinose powder. 
Eachis and stipes ebeneous ; terminal, adherent to a fasciculate erect 
rhizome. Sori linear, continuous, subsequently confluent ; indusium 
universal throughout every segment of the frond. Fig. 34 represents a full-sized pinnule of this species. 
llfj. 34 . 
