PTERIDOPHYTA HALCONENSES. 
135 
Vittaria sp. near V. elongata Sw. 
On mossy trunks at 1,100 m. alt. (No. 5859). Differing from V. elongata 
in its shorter, broader, thicker and falcate fronds. Also in Mindanao. 
With the uncertainty that exists as to many species near Vittaria elongata 
Sw., and in view of the fact that we have now five species of this genus awaiting 
description by Dr. Christ, I prefer to let these specimens remain for the present 
unnamed. The Philippine flora is very much richer in species of Vittaria than 
has been imagined. 
Vittaria scolopendri na (Bory) Thwaites. 
On trunks in humid forests at 150 m. alt. (No. 5861). 
Catanduanes (leg. Baranda) , Mindanao. 
Africa to Samoa. 
ANTROPHYUM Kaulf. 
Antropium reticulatum (Forst.) Kaulf. 
On tree trunks at 100 m. alt. (No. 5867). 
Very common in the Philippines. 
Madagascar to Polynesia. 
Antrophyum callaefolium Bl. 
On boulders in damp forests at 1,900 m. alt. (No. 5866). 
Luzon (leg. Loher) , Mindanao. 
Malaya and Polynesia. 
TAENITIS Willd. 
Taenitis blechnoides (Willd.) Sw. 
Terrestrial in ridge forests at 700 m. alt. (No. 6003). 
Common on forested ridges throughout the Philippines. The above specimen 
has the sori almost marginal. 
India to Polynasia. 
HYMENOLEPIS Kaulf. 
Hymenolepis platyrhynchos (J. Sm.) Kze. 
Epiphytic at 1,800 m. alt. (No. 6001). 
Luzon to Celebes and Borneo. 
The sterile margins of the fertile apex constitute a very perfect protection 
for the young bed of sporangia. The sterile margin reaches its whole width 
while very young, but the fertile portion remains a long time narrow, and 
completely covered by one of the sterile margins which is folded entirely across 
it. The fertile portion widens rapidly and becomes exposed just before maturity. 
Hymenolepis spicata (Linn, f.) Presl. 
Epiphytic at 150 m. alt. (No. 6000). A rather large form which is possibly 
H. brachystachys Hook., J. Sm., but not quite sessile. 
The range of this “species” is from Madagascar to Polynesia. 
Hymenolepis rigidissima Christ in Bull. Herb. Boiss. II. 6 (1906) 990. 
Epiphytic at 1,800 m. alt. (No. 5999), with H. platyrhynchos, the specimens 
quite uniform, with the sterile portions not more than 1 cm. wide, 12 to 15 cm. 
long, and the fertile portions at most 2 mm. wide and 15 to 20 cm. long. The 
form occurs elsewhere in the Philippines at similar altitudes. 
