e«. M0N06RAMMA. . § 2. ' PLISUROGRAMME. 555 



-^ — M l liOheitiana, w, jj , » , jb , ^ Plourogirammo L oherima, Chrisj, 

 . Herb. Boiss., 2e S^rie, VI, 1'006; (? Vittaria). 

 Rhizome short, erect, caespitose. Fronds fasciculaJfi<^t^8^ c.M. long, to 

 2 '/a m.M. or more broad, ligulate, often obJjjg«fiiarrowed at the base into 

 lort stipe. Texture rigidly corria£e»«sTsurfaces naked ; cosla slender but 

 ninent; veins hidden. Sgpi-flaiTow, deeply immersed, protected by a very 

 d outgrowthot-lCaMissue and therefore (apparently) marginal. — Near 

 msiUa^jBitfistiyiltSiridi pusilla, Bl). 



69. VITT.A.ie,I^, J. Smith. 



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

 ntramarginal, mostly 2-lipped fuiTows. 



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



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



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



;he receptacle, mostly invisible. (*) r^- — ^ , 

 •.„.,,'.. See Supplement 1. 

 Iropical and subtropical. ' 



Arrangement of the sections. 



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

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

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

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



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. 



Fronds simple, or some of them occasionally forked. 



h. Fronds sessile or subsessile, under 4 c.M. broad in most of the specimens. 



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



