﻿588 49. BLECHNUM. § 1. EUBLECHNUM. 



* (7) B. jserrulatum, ntch., Hk. Bk., Syn. Fil., 186; B.strialum, 

 R. Br., Hk., Spec. Fil., Ill, tab. CLIX. 



Caudex elongate, stout, ascending. Stipes 15 — 30 c.M. long, strong, erect, 

 smooth, nearly naked. Fronds oblong-acuminate, 30—60 c.M. long, 15 — 25 

 c.M. broad, with 12 — 24 pairs of quite distinct, articulate, linear-oblong pin- 

 nae on each side, the largest of which are 10 — 15 c.M. long, 1 — 2 c.M. broad, 

 narrowed gradually towards the point, and downwards to a narrow base, the 

 margin finely incised. Texture coriaceous; rachis rigid, naked; veins fine 

 and close, not conspicuous. Fertile pinnae narrower. Sori in continuous 

 lines close to the midribs. 



Trop. America, Asia ^ Australia, New Caledonia. 



(8) II. egregiuiu, Copeh^ Polypod. Philipp., 90. 



Stipes clustered in form of a nest, 10 — 20 c.M. long, stout, brown, black 

 below and densely clothed with long, black scales.^ Fronds + 1 00 c.M. long, 

 + 30 c.M. broad, pinnate, naked, moderately dimorphous. Pinnae acuminate, 

 serrate, the higher ones cofluent, the central ones attached to the rachis by 

 a broad base but free, the lowest reduced into distant auricles; fertile pin- 

 nae coriaceous, ± 15 c.M. long, l*/j — 2 c.M. broad at the base, contracted 

 gradually until the sorus occupies very nearly the whole breadth ; barren pin- 

 nae thinner but broader. Indusium coriaceous, persistent. 



Philippines. 



SO. S.A.DLEI5.I.A-, Haul fuss. 



Sori linear, close to the costa on both sides, continuous or interrupted. 

 Indusium of the same shape as the sorus, attached at its outer side, opening 

 inwardly. 



Caudex arborescent. Stipes tufted, not articulate to the caudex. Fronds 

 large, 2-pinnate; veins united near the base by transversal strands, which are 

 occupied by the sori in the fertile segments. Hk. Bk., Syn. Fil., tab. IV, fig. 35; 

 Diels, in Engl. & Prantl, Nat. Pfl.Fam., P, fig. 132, A— B. 



» S. cyatheoides, Xlf., Hk. Bk., Syn. Fil., 187; Diels, in Engl. & 

 Pi-antl, Nat. Pfl.Fam., I*, fig. 132, A— C. 



Stipes strong, erect, 15 — 45 c.M. long, densely clothed with long, linear 

 scales at the base, the rest naked. Fronds 100—250 c.M. long, 2-pinnate. 



