A Dictionary of Choice Ferns. 
177 
l^KAlSKA—eonti/iued. 
are abundantly produced^ and borne on firm stalks Sin. to 
4in. long, naked, and scaly only at the base; they are 2ft. 
to 3ft. long, 8in. to 12in. broad, and simply pinnate. The 
barren leaflets, of a leiathery texture and of a bright green 
colour on the upper surface, but of a greyish hue and 
showing peculiar markings on their under-side, are narrow- 
spear-shaped, 4in. to 6in. long, nearly stalkless, and finely 
toothed on their margins. The beauty of the plant is 
enhanced by its fronds being of a distinct metallic colour 
when partly developed. In the fertile fronds the pinnae 
are much contracted. 
CAMPYLONEURON. See Polypodium. 
CHEILANTHES. 
This somewliat extensive genus^ of which there 
is no British representative, is composed of mostly 
delicate-looking Ferns, the majority of which are of 
small dimensions, and of a brittle nature. All 
the plants included in the genus have their veins 
free, and the sori are terminal, or nearly so, on the 
veins — small, and semi-spherical at first, but 
becoming more or less confluent afterwards; their 
covering, which is formed from the reflexed margins 
of the segments, forms roundish and distinct little 
pouches, partly connected, but not quite continuous. 
This peculiarity is responsible for the popular name 
of Lip-Fern. 
As now understood, the genus includes Adian- 
topsis, Aleiiritopteris (AUosorus), Eucheilanthcs, 
and Physapteris, 
This most interesting genus is strikingly dis- 
tinct, and includes some of the most elegant and 
beautiful Ferns in cultivation. They are all ever- 
green, and, although coming principally from 
tropical countries, the majority of them thrive best 
in a house where the temperature seldom exceeds 
GOdeg. with artificial heat; a good many of them 
are even suited with a greenhouse temperature of 
45deg. minimum in winter. This is no doubt owing 
to their being found in their native habitats at 
great elevations and in dry, rocky, exposed 
situations. Anyhow, wherever Cheilanthes are seen 
