PTERIDOPHYTA HALCONENSES. 
131 
venis in lineam signatam intramarginalem anastomosantibus, inter se 
1.4 mm. distantibus ; soris a costa y 9 -^ ad marginem attingentibus, inae- 
qualibus, vennlis 1-2 inter soros sterilibus, indnsiis brunneis, 1 mm. 
latis. 
In silva muscosa epiphytieum, 1,800 m. s. m. (No. 5901). 
Type from Mount Maquiling, Luzon, leg. Loher. 
This fern combines the fructification of A. Piiyllitidis and the stature of A. 
musaefolium. My No. 1745 from Mindanao, doubtfully identified as A. Phyllitidis, 
is rather this species. More typical A. Phyllitidis occurs in Negros and Samar, 
but even this is by no means identical with the Indian plant. 
Asplenium (Thamnopteris) colubrinum Christ in Bull. Herb. Boiss. II. 6 
(1906) 999, var. taeniophyllum Copel. n. var. 
Rhizomate 1 cm. crasso in substrato radicnm foliornmqne mortuorum 
immerso ; stipitibns confertissimis 2-5 cm. longis; fronde ca. 80 cm. 
longa, 3 cm. lata, acuminata, deorsnm per alam longam siccam ad 
stipitem sensim attenuata, integerrima, eoriacea, glabra, costa supra 
biangulata deorsumque inter angulas concava, subtus valde carinata, 
fragile, pleurumque nigra ; venulis inconspicuiis, inter se 1 mm. dis- 
tantibus, intra marginem anastomosantibus ; soris a costa vix mediam 
lamina, m transeuentibus, plerumque venulis 2 inter soros sterilibus, in- 
dusiis ca. 0.3 mm. latis. 
In silvis epiphytieum, 700-900 m. s. m. (No. 5899). 
The type collected by Loher in central Luzon. 
Extast autem varietas hujus speciei frondibus interdum 4 cm. latis, 
soris -J-f ad marginem attingentibus, indusiis nigris, 0.6 mm. latis. 
In silvis eisdem, 1,800 m. s. m. (No. 5900). 
Conspicuous in the Thamnopteris group, and resembling a huge Vittaria, by 
the narrowness of the fronds, which are so crowded that with the narrowest 
possible bases they form dense “nests.” 
Asplenium scolopendeioides J. Sm., has been previously collected near the 
foot of Mount Halcon by Merrill (Nos. 1810, 4075) and by McGregor (No. 239) . 
Asplenium normale Don. 
On ridges at 1,000 m. alt. (No. 5898), and in the mossy forest at 2,300 m. alt. 
(No. 5897). 
Known from near the latter altitude on Mount Apo, Mindanao, and in northern 
Luzon. 
India to Hawaii. 
Asplenium heterocarpum Wall. 
On cliffs in dense forests at 1,700 m. alt. (No. 5896). 
Not previously reported from the Philippines. 
India to Borneo and Formosa. 
Asplenium unilaterale Lam. 
On wet rocks at 1,400 m. alt. (No. 5895) . 
Already known in the Philippines from Luzon and Mindanao. 
Africa to Hawaii. 
