﻿68. MONOGRAMMA. § 2. PLEUROGRAaiME. 555 



(6) MI. LiOlieriana., ». a. r>. I&.i Pleurogramme Loheriana, Christ, 

 Bull. Herb. Boiss., 2e SMe, VI, 1006; (? Vittaria). 



Rhizome short, erect, caespitose. Fronds fasciculate, to 8 c.M. long, to 

 ± 2 V2 Da.M. or more broad, ligulate, often obtuse, narrowed at the base into 

 a short stipe. Texture rigidly corriaceous ; surfaces naked ; costa slender but 

 prominent ; veins hidden. Sori narrow, deeply immersed, protected by a very 

 broad outgrowth of leaf-tissue and therefore (apparently) marginal. — Near 

 l\ pusilla, Christ (Vittaria pusilla, Bl). 



Luzon, Mindoro. 



69. vjrr^jkJEiij^, J. Smith. 



Sori long, linear, continuous, commonly sunk in marginal, submarginal 

 or intramarginal, mostly 2-lipped furrows. 



Rhizome creeping, rarely erect. Fronds linear, tape- or grass-like, simple 

 or rarely forked, often pendulous, whether or not articulate to the rhizome : 

 veins simple, rarely forked, erecto-patent, often very oblique, free or united 

 by the receptacle, mostly invisible. (*) 



Tropical and subtropical. 



Arrangement of the sections. 



§ 1 . EUVITTARIA. Sori immersed, + marginal, the upper (outer) lip of the 

 furrows not much broader fhan the lower (inner) one, not rolled over ihe 

 sorus when young. Hk. Bk., Syn. Fil., tab. VI, fig. 56, a; Diels, in 

 Engl. & Prantl, Nat. Pfl.Fam., P, fig. 157, J— K. 



§ 2. TAENIOPSIS. Sori rarely superficial, mostly immersed, submarginal or 



intramarginal, the lips of the furrows + wanting or the outer one much 



■ broader than the inner and rolled over the sorus when young, or the 



sorus protected by the recurved margin of the frond. Hk. Bk., 1. c. fig. 



56, b— c; Diels, 1. c, fig. 157, L, M & Q. 



§ 1. EUVITTARIA. 



a. 



Fronds simple, or some of them occasionally forked. 



h. Fronds sessile or subsessile, under i c.M. broad in most of the specimens. 



(*) There is no genus whose species are more difficult of determination (Copel.). 



