characterized, first, by having the sporangia in lines of - 
one tem of simple netted veins all of which are practicall, 
72 AMERICAN FERN JOURNAL 
the herbaria of the Bureau of Science at Manila, Yale 
University, the National Museum, the Underwood Fern 
Herbarium at the New York Botanical Garden, and part 
of Dr. Copeland’s herbarium. 
Antrophyum Williamsi sp. nov. 
Plants small, epiphytic; stem creeping, dorsiventral, 
the phyllotaxy distichous; leaves 3-6, cespitose, rigid, 
eee em. long, nearly erect, often faleate; the petioles 
out, 1.5-2 mm. thick, margined, usually nearly or more 
vet half the length of the leaf; the blade linear-elliptic, 
4-8 mm. broad, thick, usually somewhat revolute, the 
margins sharp, ‘the upper surface smooth when fresh, 
wrinkled when dry but not showing the course of the 
yen, the leaf trace of two bundles, the veins forming © 
areole across the broadest part of the blade; spor- 
in disjunct or occasionally branching lines, spread- 
ng at maturity so as almost completely to cover the 
back of the blade, in shallow open grooves; paraphyses 
clavate, usually bent at aright angle near the base, smooth, . 
brown; spores triplanate. . 
Type collection from tree trunks, Baguio, Proves of 
‘Benguet, Northern Luzon, Philippine Islands. R. S. 
Williams 1579, Nov. 3, 1904. Deposited in the Under-_ 
wood Fern Herbarium, New York Botanical Garden. _ 
Antrophyum is an interesting genus, totally unlike any 
_ thing found here in the United States. The genus is 
indefinite extent, usually in grooves, and always 
ciated with sterile stalked paraphyses; second, by a sy 
equal in size, so that there is no midrib. All the species 
have simple entire leaves. _ : 
A. Williamsi is almost the is of the genus, 
a wh Lich are species with leaves two or r three feet lone 
foot wide. A 8 
