NEW OR INTERESTING PHILIPPINE FERNS: III. 
By Edwin Bingham Copeland. 
(From the Bureau of Education, Manila, P. I.) 
DRYOPTERIS Adanson. 
Dryopteris cuspidata (Bl.) Christ, Philip. Journ. Sci. 2 (1907), Bot. 205. 
This seems to me a perfectly distinct species, but it certainly includes Whitford 
272 from Mount Mariveles, referred by Christ (1. c. 207) to D. ruhida, and Cope- 
land 2025 from Mount Maquiling, referred by Christ (1. c. 205) to D. urophylla, 
as well as Merritt, F. B. 6850 and Merrill 6093 from Mindoro. Although the 
fronds often become reddish in drying, they can be distinguished from D. ruhida 
by the shape, texture, and venation of the pinnse, and, in well-developed specimens, 
by the proliferation. 
HEMIGRAMMA Christ. 
Hemigramma latifolia (Meyen) Copel. 
In a recent collection of normal material of this plant in Zambales by Curran 
(For. Bur. 5802) is found one most remarkable form illustrated by the accom- 
panying photograph (PI. II). As Christ states, the fertile fronds of this plant are 
not invariably closely contracted, but this specimen not only has the fertile frond 
fairly broad, and with irregular margin, but it has fairly definite sori which 
are indusiate! The indusia are partly peltate, but mostly with an overgrown 
sinus. The plant impresses me as a very remarkable reversion; or it may be 
a hybrid. In either case it is good evidence as to the affinity of Hemigramma, 
and leads me to believe that this fern originated in Tectaria independently of 
Leptochilus, and therefore is properly separated from that genus. 
Elmer’s 7060 (PI. III.) is another interesting fern, in the same "connection. 
It can be called Tectaria crenata Cav., but the sterile frond has the peculiar mot- 
tling of Hemigramma, and the fertile frond is reduced, and the sori, while every- 
where indusiate, are in places very irregular and disposed to stretch out along 
the veins. It is the likelihood that this is a hybrid which makes me suspect 
that Curran’s plant is also one. We certainly have good ground for the be- 
lief that Tectaria crenata and Hemigramma are nearly related. Plates I and 
IV illustrate likely parents of such hybrids. Another Tectaria, T. decurrens 
(Presl) Copel., has more nearly the form of Hemigramma. It is my opinion 
that Hemigramma had a not very remote common ancestry with both these 
species of Tectaria. 
LEPTOCHILUS Kaulfuss. 
Leptochilus normalis (J. Sm.) Copel. n. comb. ( Gymnopteris J. Sm., Hook. 
Journ. Bot. 3 (1S41) 403; Dendroglossa Presl, Epim. Bot. 1849, 149; 
Leptochilus rizalianus Christ. Bull. Herb. Boissier II, 6: (1906), 1004.) 
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