PHILIPPINE SPECIES OF ATHYRIUM. 
291 
GROUP OP A. MACROCARPUM. 
7. A. halconense Christ in Philip. Journ. Sci. 3 Bot. (1908) 2^3. 
Mount Halcon, Mindoro, Merrill 6092, 6097. 
A relative of A. macrocarpum (Bl.) Bedd. 
8. Athyrium anisopteron Christ in Ann. Acad. Mans. 1907; Philip. Journ. 
Sei. 2 (1907) Bot. 160. Aspidium Fauriei var. elatius Christ Bull. Herb. Boiss. 
II 6 (1898) 193. Nephrodium, Copel. Polypodiaeeae (1905) 21. 
Benguet (Loher), Copeland 1967, Bur. Sci. 1/188 (a dwarf or immature form) 
1/189, 1/190 M earns; Zambales, For. Bur. 8217 Curran & Merritt. Perhaps related 
to A. drepanopteron, M earns 1/190 (a dwarf) approaching the latter by having 
unusually long and sharp pinnae. On another side it approaches A. macrocarpum 
(Bl.) Bedd. 
GROUP OP A. NIGRIPES. 
9. Athyrium aristulatum Copel. in Philip. Journ. Sci. I (1906) Suppl. 253. 
Mount Data, Lepanto, Luzon, Copeland \ 1880; Benguet, Mearns 1/192, same 
place, Mearns 1/193, a very tall, lax form. 
A. aristulatum var. sphagn icolum Copel. ibidem. 
Mount Data, Copeland 1871. A dwarfed form in a sphagnum bog. 
10. Athyrium ph il ippi nense Christ in Philip. Journ. Sci. I (1906) Suppl. 
254. A. Sarasinorum Christ var. philippinense Christ in Bull. Herb. Boiss. II 6 
(1898) 154. 
Mount Data, Luzon, (Loher), Copeland 1909a. 
A near relative of A. brevipinnulum, which in turn is unmistakably related 
to A. nigripes. 
11. Athyrium brevipinnulum Copeland sp. nova. 
Athyrium A. nigripedi affine, paleis crinitis, pinnis sessilibus, pinnulis 
brevibus latis non decurrentibus distinction. 
Rhizomate adscendente radices atras rigidas emittente basibusque 
stipitum paleis angustis brunneis crinitis vestitis; stipite 15-25 cm 
alto rhachideque stramineis: fronde 25-30 cm alta, ca. 15 cm lata, glabra; 
pinnis sessilibus horizontalibus, utroque latere ca. 12, infimis quam 
sequentibus vix majoribus, rhachidibus solummodo apucl apicem anguste 
alatis: pinnulis utroque latere pinnarum majorum ca. 13, trapezoideis, 
cuneato-auriculatis, ca. 11 mm longis 7 mm latis, breviter inciso-serratis, 
obtusis vel subacutis, herbaceis : soris ca. 2 mm longis, costalibus, pie- 
risque asplenioideis. 
In mossy forest, alt. 2,200 m. Mount Bulusan, Benguet, Luzon, Copeland 1939. 
12. Athyrium nigripes (Bl.) Moore, var. mearnsianum Copel. var. nova. 
Caudice basibusque stipitum paleis fere nigris vestitis, soris ca. 2.5 
mm longis, pinnulis acute dentato-serratis. 
This is a very variable fern common in Benguet and the neighboring highland. 
Some specimens seem too distinct possibly to be A. nigripes; but others, which 
seem unmistakably the same plant, agree for the most part with Blume’s diag- 
nosis and with some Javan specimens. As construed by Raciborski this is a 
very variable species in Java also. Some Benguet specimens have the lowest 
pinnae moderately reduced. Notable points of agreement between plants of Java 
