(b) Veins reticulated, without free included veinlets. 



40. SCHIZOLOMA, G-audichwad, Me^dnet's Voy. 378, 



t. 16—18. 



Peeicoptis, Wallich Bit.; Stjitaphlebium, J. Swdih; {Synphlebium 

 Fee); DlELLlA, Brackewridge ; LlNDSiE^ sp., Auct.; Ftebibis sp., Auct.; 

 At > tatt ti sp., Auct. ; DataIiLle sp., Hooker. 



Sort indusiate, linear or oblong, oontmuous or interrupted ; 

 the receptacles sub-marginal. Indusium membranaceous, equalling 

 or shorter than the margin of the frond, opening on the exterior 

 side. Veins eoostate, or forked from a central costa; venules 

 anastomosing in elongated oblique areoles, without free included 

 veinlets, the marginal ones combined by the transverse receptacle. 



Fronds herbaceous, simple lobed or pinnate, rarely bi-piunate; 

 pinnsB or pinnules equal-sided or dimidiate, fertile on the upper 

 margin only, or on both margins. Ehizome creeping. — This 

 genus differs from lAndscea only in its simply reticulated ve- 

 nation. In the species referred to Diellia, the sori are constantly 

 short and distinct ; but this peculiarity, disregarded in Adian- 

 turn, cannot here be admitted to be of generic value. 



§ Euschizoloma. — Divisions of tlie &ond isomerous, with a midrib. 



Ex. : S, ensifolium, J". Sm. I S. Guerinianum, Gaud. 



S. Fraseri, Fee. S. falcatum (Diellia, Srackenridge.J 



S. Griffithianum, F^e. [ S. ereetum (Diellia, Brackenridge.J 



§ Synphlehiwm. — Divisions of tlie frond dimidiate, tlie coata exeentric or 

 wanting. 



Ex. ; S.propinquum (Lindstea, Sic.) I S. recurvatum (LindsjEa, Wall.) 



S. davallioides (Liadssea, BI.J \ S. Pickeringii(Synaph]ebium,5racfe.> 



(c) Veins compoundly reticulated, with free included veinlets. 



41. DICTYOXIPHIUM, SooTcer, Gen. Ml. t. 62. 



LurDS.S.s sp., Metteniui. 



Sori indusiate, linear, continuous; the receptacles suh-Tnargmal. 

 Indmsium not equalling the attenuated margin of the frond. 

 Vmis oompoundly reticulated, sub-uniform, from a centra! 

 costa, internal ; venules anastomosing in unequal hexagonal 

 areoles, from which proceed free included simple or forked diva- 

 ricate veinlets, which are thickened at the apex. 



d2 



