\ 
(* 
1 
n 
^ 
PTERIDOrH YTA HALCONENSES. 1 23 
Aspidium ,sp. near A. decurrens Presl. 
In forests at 100 m. alt. (No. 5871). 
A veiy tall fern with the lower pairs of pinnae not quite connected by a wing 
and with hut a very narrow wing decnrrent a third of the way down the stipe. 
Aspidium cicutarium (Linn.) Sw. 
In the humid forests at 200 ni. alt. (No. 5870), a very chaffy form which I 
have not seen before. On cliffs in dense forests at 1,800 m. alt. (No. 58G9), a 
small flaccid form with rounded lobes, already known from BontoCj Luzon. Other 
forms are not coninion in tlie Archipelago. 
Pantropic. 
POLYSTICHUM Rotb. 
Polystichum horizontale Presl (P. aculcatuw var. hatjanennc Christ; Aspidium 
hatjanense Christ.) 
^ 
Epiphytic and terrestrial in the ridge forests at 800 m. alt. (No. 5879). 
In the rain forest and submossy forest from Luzon south to Batjan. 
Specimens of Polystichum aculeatum var. hatjanense determined by Christ, are 
identical with tlie P. horizontale collected by Cuming; they do not agree well with 
Blume^s description of Asp^idium moluccanum, but I have no specimens of the 
^ latter species. 
L 
Polystichum amabile (Bl.) J. Sm. 
On cliffs in forests at 2,000 m. alt. (No. 5878). 
Throughout the Philippines at lesser altitudes. 
Malaya to India and Japan. 
Polystichum carvifollum (Kze.) C. Chr. (P. coniifolium Presl). 
4 
In ridge forests at 700 m. alt. (No. 5877). 
Common throughout the Philippines in the upper high forest. 
Natal to Hawaii. 
CYCLOPELTIS J. Smith. 
Cyclopeltis presliana (J. Sm.) Berk. 
On cliflFs in forests at 300 m. alt. (No. 5880), a form with small obtuse pinnae. 
Common in the Philippines; (perhaps Aspidium Kingii Hance) . 
Burmah to New Guinea. 
LEPTOCHILUS Kaulfuss. 
Leptochilus heteroclitus (Presl) C. Chr. 
ft 
On boulders in humid forests at 100 m. alt. (No. 5883), pinnse ovate and 
caudate, otherwise typical. 
Common in the Philippines and exceedingly variable. 
India to Melanesia. 
\ Leptochilus Zollingeri (Kze.) F^. 
In a deep ravine at 300 m. alt. (No. 5884), specimens all simple. 
Luzon, Mindanao. 
Malaya. 
