100 ciTinsT. 



Var. Foxworthyi ii. var. 



Pinna terminali lincai'! vd ohJonga aciiniinata grosse (lentata longe 

 (lecnrrente interdnni radicante, pinnis dnahns lateralibus rudinientariis 

 niinutis, O.T) ciii. aut ultra dianietro, ellipticis aut rotundatis, pinna fertili 

 tcrniinali lineari-lanceolata duohus lol)ulis hitcralihus ovatis suffulta. 

 Planta vix 30 cm. alta. 



LuzoN, Province of Rizal, liosoboso (68 Foxworthy) January, lOOf». 

 Small, very narrow and very siniple in coniparison with tlie type, ))nt elosely 

 related by tlie shoots developed along tlie upper parts of tlie k'aves. 



Var. inconstans (Copel. in Govt. Lab. Publ. 28 (1905) 43 pro specie). 



In view of tlie fact tliat two varieties sliow a progressive intergradation 

 between the type and the species described by Vopeland, I liave not hesitated to 

 consider the latter as a variety of Leptochilus heteroclitus, a form still niore 

 reduced than the preceding, cliaracterized by its very small size, the apices of the 

 leaves often linear, the shoots vcry irreguLar. Var. Foxworthyi is almost exactly 

 interniediate between the type and tlie variety inconstans. 



LuzoN, Province of Bataan, Lamao River (3128 Merrill). April, 1904; (251 

 Copeland) January, 1904; (1124 Whiiford) March, 1905; Province of Rizal, 

 Mabacal (Loher) March, 190G. 



This variety seems to be rather widely distributed in the Pliilippines; I have 

 specimens from Christmas Island (Straits Settlements) leg. Ridley that closely 

 approach it. 



Var. Linnaeanus (Fee Acrost. 87 pro specie). 



1 believe that this form can be reduced, with a sufficient degree of surety, as 

 a variety of Leptochilus hcteroelitus, as a derived form of that species, in spite 

 of its uniformly elongated and very narrow leaves. Its texture, its nerves, 

 although strongly siniplified, its proliferous leaves and the strong resemblance 

 of its offshoots to those of tlie normal form support this contention. We have 

 tlien a series almost complete from the type, that seems to be always triphyllous 

 in the Philippines, to the form with absolutely linear and undivided leaves. 



LuzoN, Province of Rizal, Manap River, near Montalban (Loher) 1892. 



24. Leptochilus diversifolius Blvmie, Enuni. 103 et Fil. Jav. Tab. 12. 

 MiNDANAO, San Ramon (1543 Copeland) November, 1904, alt. 100 m. 

 Discovered by Blume in Java and generally confounded witli L. heteroclitus, 



from wliich it is sufficiently distinct. Conf. Raciborski Pterid. Buitenz. 48. 



ATHYRIUM Rotli. 



25. Athyrium anisopteron Christ, Ann. Acad. Mans. (1907). 



LuzoN, Province of Benguet, Mount Tonglon (Loher) 1894, alt. 2,250 m.; 

 Pauai (19G7 Copeland) November, 1905, alt. 2,150 m. 



Tliis is the plant that I have previously considered as Aspidium Fauriei var. 

 clalum Christ,'* and which Copeland, MSS., referred to Nephrodium. Makino^ 

 treats it with reason under Athyrium. After an examination of abundant material 

 I liavo divided this species into several, tlie representative in the Philippines 

 being A. anisopicron, a species of a Chinese group already known from Yunnan, 

 leg. Hcnry et J'. Ducloux. 



'■Jiull. Hcrb. Boiss. 6 (IS9S) 193. 

 "Bot. Mag. Tokyo 17: IGO. 



