IGO CHRIST. 
Var. Foxworthyi n. var. 
Pinna terniinali linoari vel oblonga aenminata grosse dentata longe 
(lecurrente interduni radicante, pinnis duabus lateralibiis rudinieutariis 
minutis, 0.5 cm. aut ultra diametrOj olliptieis aut rotundatis, pinna fertili 
terminali lincari-lanccoUita diiobns lobnlis bitoralibus ovatis snffnlta. 
Planta vix 20 cm. alta. 
F 
Lrzox, rroviuce of E.izal, Bosoboao (G8 Foanvorthy) January, 1900. 
Small, very narrow and very simple in comparison with the typo, hut closely 
related by the shoots developed along the upper parts of the leaves. 
Var. inconstans (Copel. in Govt. Lab. Publ. 28 (1905) 43 pro specie). 
In view of the fact that two varieties show a progressive inter gradation 
between the type and the species described by CopeJand, I have not hesitated to 
consider the latter as a variety of Leptochilus heteroclitus, a form still more 
reduced than the preceding, characterized by its very small size, the apices of the 
leaves often linear, the shoots very irregular. Yar. Fosnvorthyi is almost exactly 
intermediate between the type and the variety inconstans. 
Luzon, Province of Bataan, Lamao River {3128 Merrill) April, 1904; (251 
Copcland) January, 1904; (1124 Whitford) March, 1905; Province of Rizal, 
Mabacal [Loher) :\rarch, 190G. 
This variety seems to be rather widely distributed in the Philippines; I have 
specimens from Christmas Island (Straits Settlements) leg. Ridley that closely 
approach it. 
Var. Linnaeanus (F6e Acrost, 87 pro specie). 
I believe that this form can be reduced, with a sufficient degree of surety, as 
a variety of Leptochilus heteroclitus, as a derived form of that species, in spite 
of its uniformly elongated and very narrow leaves. Its texture, its, nerves, 
altliough strongly simplified, its proliferous leaves and the strong resemblance 
of its oflfshoots to those of the normal form support this contention. We have 
then 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 Blume, Enum. 103 et Fil. Jav. Tab. 12, 
^Mindanao, San Ramon (1543 Copeland) November, 1904, alt. 100 m. 
Discovered by Blume in Java and generally confounded with L. heteroclitus, 
from which it is sufficiently distinct. Conf. Racihorski Pterid. Buitenz. 48, 
ATHYRIUM Roth. 
25. Athyrium anisopteron Christ, Ann. Acad, ilans. (1007). 
Luzon, Province of Benguet, Mount Tonglon [Loher) 1894, alt. 2,250 m.; 
Pauai (19G7 Copeland) November, 190-3, alt, 2,150 m. 
This is the plant that I have previously considered as Aspidium Fauriei var. 
datum Christ,'' and which Copcland, MSS., referred to Nephroditim. Makino^ 
treats it with reason under .1 thyrium. After an examination of abundant material 
I liave divided this species into several, the representative in the Philippines 
being A. amsopteron, a species of a Chinese group already known from Yunnan, 
leg. TTcnry et /'. Ducloucc. 
^BulL Ilcrh. Boiss. 6 (1S9S) 10,1. 
"Bot. Mag, Tol-yo 17: KiO. 
