﻿362 4Sa. PTERIS. § 1. EUPTEHIS. C*. BIPINNATIFIDAE. 



* (16) Pt. semipinnaia, t., Rac, Flor. Btz., I, 153; Hk., Gard. 

 Ferns, tab. LIX; Bedd., Ferns S.I., lab. XXXIV; Pt. dimidiata, Willd., Spec, 

 V, 581; — var. inaequalis; Pt. inaequalis, Bk., Journ. of Bot., XIII, 199. 



Rhizome creeping, clothed with blackish-brown, linear-lanceolate, finely 

 acuminate scales. Stipes 20 — 50 c.M. long, strong, erect, naked, stramineous, 

 reddish or bright-brown. Fronds 15 — 45 c.M. long, 10—25 c.M. broad, ovate- 

 lanceolate, the upper part cut down nearly or quite to the rachis into close, 

 entire, linear or oblong, + falcate or straight segments, the lower "^j^ part 

 with 4 — 8 pairs of opposite, distant pinnae with a + long entire point and 

 a broad, undivided, leafy membrane on the upper side, but the lower side with 

 several linear or oblong lobes or pinnulae 2 — 5 c.M. long, with the base + de- 

 current; barren segments finely serrate. Texture subcoriaceous ; rachis and 

 surfaces naked; veins simple or forked. Indusium membranaceous. 



Var. inaequalis: Two times as large as the type. 



Trop. Asia, China, Japan; — var. inaequalis: Celebes; Hongkong. 



(17) Pt. dispar, Jr«e, Copel., Polypod. Philipp., 101; Pt. semipinnata, 

 L., var., C. Chr., Ind. Fil. 



Like Pt. semipinnata, L., but the pinnae more or less pinnate on the 

 upper side also. 



Philippines; China, Japan. 



(18) Pt. tlistans, J. Sm., Hk. Bk., Syn. Fil., 156; Hk., Spec. Fil., 

 II, tab. CXXIV, B. 



Stipes about 15 c.M. long, slender, erect, naked, pale. Fronds about 30 

 c.M. long, 10 — IB c.M. broad, terminated by a pinna with a long, narrow, 

 sharply serrate, linear apex, below which are 12 — 20 pairs of closely placed 

 short lobes to l^j^ c M. long and ^3 c.M. broad, the lower ^/g part of the 

 fronds with 6 — 9 pairs of opposite, distantly placed pinnae with a long, linear 

 apex, and at the base a few, short, oblong, close, spreading pinnulae. Tex- 

 ture coriaceous; rachis scabrous; veins conspicuous, simple or forked; 

 barren lobes sharply and finely spinuloso-serrate. Indusium membranaceous. 



Philippines. 



* (19) Pt. Eficteromorpha, Fee, Hk. Bk., Syn. Fil., 156; Hk., 

 Spec. Fil., H, tab. CXXVH, B; Bedd, Ferns Br.I., I, tab. LXXXIX; Pt.cretica, 

 L., var. heteromorpha, Bedd., Handb. Ind. Ferns, 106. 



