296 
COPELAND. 
GROUP OP A. SORSOGONENSE. 
27. Athyrium sorsogonense (Presl) Milde. Diplazium Woodii Copel. Philip. 
Jouni. Sei. 2 (1907) Bot. 129. 
(Luzon, Sorsogon, Haenke) : Mindoro, Merrill 5917 (D. Woodii) : Leyte, 
Cuming 301: Negros, Elmer 10392: Mindanao, Copeland 1775. 
India, Malaya. 
I described D. Woodii as distinct because of its unlikeness to my Mindanao 
specimen; but Elmer’s Negros plant is intermediate, and Cuming’s from Leyte, 
which I have but lately received, is almost exactly like the Mindoro specimens. 
28. Athyrium brachysoroides Copel. comb. nova. Diplazium brachysoroides 
Copel. Philip. Journ. Sei. 2 (1907) Bot. 127. 
Mindoro, Merrill 5919. 
Intermediate between -I. cyathecefolium and A. sorsogonense. 
GROUP OF A. WILLIAMSI. 
29. Athyrium deltoideum (Presl) Milde. Asplenium, Presl Eel. Haenk. 1 
(1825) 47, Tab. 7, f. 2, non Hooker. 
(Luzon, Haenke ) : Rizal Province, Bur. Sci. 1199, 1802 Ramos. 
These specimens lit Presl’s figure so exactly, and the form of the frond is so 
characteristic that I can not doubt their specific identity. Small fronds have 
even the lowest pinnae not quite pinnate. The rhizome is oblique, and the base 
of the stipe black, clothed when young with sparse, broad dark-brown pale®. 
The nearest relative is A. Whitfordi. The texture is thinly coriaceous. 
30. Athyrium Whitfordi Copel. comb. nova. Diplazium Whitfordi Copel. in 
Philip. Journ. Sci. 1 (1906) Suppl. 150. 
Mount Mariveles, Copeland 231/, 1970, Whitford 1110, Topping 1/26, 391f partim; 
Zambales province, Bur. Sci. 1/773 Ramos. 
Nearly related to the preceding, from which, judging by collections up to this 
time, it differs always and very conspicuously in the form of the frond. 
31. Athyrium Bolsteri Copel. comb. nova. Diplazium Bolsteri Copel. Philip. 
Journ. Sci. 1 (1906) Suppl. 254. 
Mindanao, Province of Surigao, Bolster 261/. 
Rhizome suberect, bases of stipes bearing sparse narrow, dark-brown palese. 
32. Athyrium geophilum Copel. spec. nova. 
Filix A. Bolsteri affinis, sed multo minor, pinnulis paucis separatis 
cuneiformibus, rhizomate adscendente, basibus stipitnm paleis paucis 
minutis pallidis vestitis. 
Rhizomate 1-2 mm crasso, radicibus basibusque stipitnm dense ob- 
tecto; stipitibus 2-6 cm altis, nigris, filiform i bus, deorsum paleis pallide 
fuscis 0.5 mm longis sparsis deciduis vestitis, fasciculis vascularibus 
2 usque ad laminam distinctis; fronde 5-8 cm alta, 2 cm lata, bipin- 
nata pinnis utroque latere 5-8 pedicellatis vix auriculatis, apice rotundatis 
dentatisque, infimis reductis; pinnulis cuneiformibus, utroque latere 1-2 
liberis, prima acroscopica maxima, rhachidi frondis parallela, dentatis 
dentibus 1-4, herbaceis, glabris, infra paullo pallidioribus ; venulis in 
dentibus, nec non interdum in pinnulis, solitariis; soris asplenioideis, 
1-3 mm longis. 
Horn of Negros Mountain, on wet earth under large, mossy rocks, alt. 1,450 m, 
Elmer 9881/. 
