﻿254 



25. ASPIDIUM. 



sinus, very rarely oblong and attached by a short, longitudinal axis, opening 

 all round the edge or nearly so. 



Rhizome creeping or erect. Stipes not articulate to the rhizome. Fronds 

 uniform or nearly so, often inclined to a triangular shape, simple or divided, 

 if divided the lowest pinnae often inclined to a stronger development of the 

 basiscopic side; texture often herbaceous; veins anastomosing + copiously 

 and irregularly; areolae with or without included, free veinlets. 



Pan tropical. 



Arrangement of the sections. 



% 1. TECTARIA {Eu-aspidiiim). Indusium round, peltate. Hk. Bk., Syn. Fil., 



tab. V, fig. 43, d; Diels, in Engl. & Pranll, Nat. Pfl.Fam., l\ fig. 96, 



C— D. 

 § 2. SAGENIA. Indusium reniform and attached at the top of the sinus, 



very rarely oblong and attached by a short, longitudinal axis. Diels, 1. c, 



fig. 97, A— C. 



§ 1. TECTARIA ('). 



(1) A. singaporianum. 



(2) A. tricuspe. 

 (3) A. platanifolium. 



a. Fronds simple (^). 

 a.a. Fronds palmately 3 — 5-fid. 

 >tc. Segments lanceolate. 

 >tc.-x-. Segments triangular. 

 a.a.a. Fronds ternate, or pinnate to S-pinnatifid. 



b. Sori arranged along the margin of the ultimate segments. 



. (4^ A. calcareum 

 b.b. Sori scattered irregularly ('). 



$. Stipe and rachis glossy, eheneous. (5) A. angulatum 



$.$. Stipe and rachis minutely pubescent. (6a) A. Kunstleri 



b.b.b. Sori in rows between the main veins or costulae (^). 

 c. Fronds under 55 c.M. long. 



d. Lowest pinnae simple or forked. 

 e. Sori dorsal on the veinlets. 



(') See also under A. coadunatuiu, Wall. 

 (*) See also A. angulatum, J. Sm. 



(°) See also A. inultlcaudatum & polyinorphum, Wall., & A. ollgophyl- 

 lum, list. 



