﻿HI. GLEIOHE]NlJ^CE^kJE. 



Sori dorsal, consisting of few (2 — 12) capsules. Capsules commonly 

 decumbent and placed in a whorl, with the receptacle in the centre, sessile 

 or short-stalked, surrounded by a horizontal or sub horizontal, complete ring, 

 bursting vertically. Receptacle punctiform. Indusium wanting. 



Rhizome mostly creeping. Fronds rarely unbranched, generally dichoto- 

 mously forked or pinnate and if pinnate the pinnae or pinnulae dichotomous, 

 frequently bearing axillary buds; the leafy portion of the branches commonly 

 pectinate; veins always free. 



Tropical and extra-tropical in the southern hemisphere. 



No. 7. Oleichenia. 



T'. G^LEICHEIVIA., Smith. 



Sori consisting of few, commonly 2—5, rarely 6 — 12 sessile sporangia, placed 

 mostly in a whorl. No indusium. 



Rhizome creeping, rarely erect. Stipes mostly scattered, not articulate 

 to the rhizome. Fronds mostly forked, rarely pinnate, the primary branchings 

 pinnate or once or more times forked again, or pinnate and forked. The 

 dichotomous forms are often purveyed with axillary buds, which not rarely 

 gi'ow out to fully developed branches, which give the fronds the appearance 

 of pinnate or 2-pinnate fronds with dichotomous branches of a higher order. 

 The thus formed spuriously pinnate fronds are often to be recognized by the 

 presence of mostly divided stipulae or a mass of densely crowded scales 

 placed in the axils of the principal branchings and wanting in the truly pin- 

 nate forms. Ultimate segments (lobes or leaflets) semiorbicular and contiguous 

 or linear and pectinate; veins free, simple or forked, often immersed or 

 obsolete. 



Tropical and extra- tropical in the southern hemisphere. 



Arrangement of the sections. 



§ 1 . PLATYZOMA. Fronds unbranched, simply pinnate ; leaflets roundish or ovate, 

 cucuUate, to 2 m.M. long. Hk. Rk., Syn. Fil., tab. I, fig. l,a — c; Diels, in 

 Engl. & Prantl, Nat. Pfl.Fam., I*, fig. 189, C. (Not in Malaya). 



