SB. ASPIDIHM. ^ 1. TECTARIA. 239 



acuminate, slightly and bluntly sinuate, the hase narrowed, the lowlpst stalked, 

 2-partite. Texture subcoriaceous ; main veins distinct to the edge; areolae 

 copious, with free veinlets. Sori large, in 2 rows betwen the main veins. — 

 Resembling A. pachyphyllum, Kze k polymorphum, Wall. (Bk.) 

 Malacca, Borneo, Philippines, New Guinea. 



§ 2. SAGENiA C). 



J. Sori scattered irregularly. 

 S. Fronds pinnatifid. 



^. Stipes not winged. (11) A. Everetti. 



i^.-^. Stipes long-winged. (12) A. vastum. 



9.S. Fronds simple or more generally pinnate, 3 — oo-^foUolate. 

 3, Simple frond or terminal pinna entire or sinuate. 

 A. Fronds simple or 3-foliomte^. 



$. Stipes winged nearly to the base. (13) A pteropodum. 



$.$. Stipes not winged, or winged in the upper half only. 



f. Wiizome wide-creeping. (14) A. ternatum. 



f.f. Rhizome + erect. (IB) A. subcaudatum. 



i A.A. Fronds mostly 5 — CO -foUolate in the fully developed plant. 



S. Lowest pinnae simple, or forked at the base. 



6. Edges entire, crenale or repand. 



9. Rhizome erect. (16) A. psilopodum. 



9.7. Rhizome creeping. (17) A. polymorphum. 

 e.G. Edges sinuate. (18) A. menyanthidis. 



5.5. Lowest pinnae 3-partite or 3-nate. 



if.. Lateral pinnae ± 2 on each side. Texture ± 

 coriaceous. (19) A. Lobbii. 



>jc.>(c. Lateral pinnae + 5 on each side. Texture ± 

 herbaceous. (20) A. semibipinnatum. 



3.3. Simple frond or terminal pinna deeply lobed at the base. 

 a. Rhizome erect^or ascending. 

 h. Stipes black. 



c. Fronds mostly under 25 c.M. long. 



(21) A. Weinlandii. 



(*) See also A. plafanlfollum, Mett. & calcareum, Pr. 



