POLYPODIACEAE 53 
toward their tips, the pinnules oblong, the upper surface glabrous, naked, 
the lower surface densely covered with a white, waxy powder. Sori 
linear, forked, eventually nearly covering the lower surface of the frond. 
Cultivated for ornamental purposes, also spontaneous and abundant on 
dry banks, cliffs, etc., Guadalupe to San Juan del Monte. A native of 
‘tropical America and Africa, introduced and now .thoroughly naturalized 
here. 
8. NOTHOLAENA R. Brown 
Terrestrial slender ferns from usually creeping rootstocks, the stipes 
clustered, not jointed to the rootstock, the fronds rather small, pinnately 
compound, glandular, hairy, or scaly, the veins free. Sori rounded to 
oblong, terminal on the veins, often uniting into a continuous submarginal 
line, naked or partly covered by the unaltered, usually recurved edge of 
the frond. (Latin “false” and “cloak,” from the imperfect indusium.) 
Species about 50 in the warmer parts of both hemispheres, 1 in the 
Philippines. 
1. H. hirsuta (Poir.) Desv. (N. densa J. Sm.). 
Rootstocks short, densely covered with narrow brown scales, the stipes 
rather crowded, slender, 3 to 15 cm long, brown, shining, glabrous or 
more or less clothed with subulate, fibrillose scales. Fronds 6 to 20 em 
long, oblong, 1.5 to 5 cm wide, 3-pinnatifid at the base, the primary pinnae 
distant, 4 to 7 below the pinnatifid apex, deltoid-oblong, the pinnules oblong, 
about 1 cm long, the rachis and lower surfaces of the fronds more or 
less densely fibrillose with brown hairs. Sori usually continuous along 
the margin. 
On dry walls of Intramuros, and in dry thickets San Juan del Monte, 
etc., of local occurrence in the Philippines. India through Malaya to 
Australia and Polynesia. 
9. CHEILANTHES Swartz 
Usually slender, tufted, terrestrial ferns from creeping or ascending, 
scaly rootstocks, the stipes dark-colored, not jointed to the rootstock, the 
fronds pinnately divided, the veins free. Sori rounded to oblong, terminal 
on the veins, at first small and distinct, afterward more or less confluent 
in a submarginal line. Indusium consisting of the wholly or partly re- 
curved modified margin of the frond. (Greek “lip” and “flower,” allusion 
to position of the sori.) 
Species over 100 in the warmer parts of both hemispheres, about 5 in 
the Philippines. 
1. C. tenuifolia (Burm.) Sw. 
Stipes scattered or tufted, slender, brown, 8 to 20 em long, shining, 
naked, or the base slightly fibrillose. Fronds oblong-ovate 8 to 20 cm 
long, 4 to 10 cm wide, 3-pinnatifid, the lower pinnae distant, opposite, about 
2 em wide, divided to the rachis in the lower part into oblong to linear, 
entire or toothed lobes or segments, glabrous on both surfaces. Sori 
rounded or subcontinuous, the indusium narrow, transversely oblong. 
In dry thickets, on cliffs, banks, etc., Caloocan to Pasay; widely distri- 
buted in the Philippines. Tropical Asia to New Zealand, eastward to 
Polynesia. 
