﻿576 45fc. HEMIPTERIS. 



fl. l¥eriieri, nst.. Fed., Rep., V, 38. 



Rhizome and stipes unknown. Fronds (ex sched.) pedate, with the prim- 

 ary segments (of the primary hranches ?) elongate-ovate, 50 c.M. long or 

 longer, + 30 c.M. broad, pinnate like the terminal segments. Secondary seg- 

 ments multijugate, alternate, subcoutiguous, linear-lanceolate, erecto-patent, 

 deeply pinnatifid, narrowed towards the serrate apex, the point entire, the 

 largest ones + 25 c.M. long, + 3 c.M. broad, the higher ones suberect 

 and smaller than the lower ones. Lobe^ multijugate, erecto-patent, not 

 very distant, joined at the base by a wing ± 1 m.M. broad, linear, 

 1 ^/j c.M. long, Yi c.M. broad, the apex obtuse, the margin serrato- 

 dentate, the teeth slightly crenate. Texture membranaceo-herbaceous ; surfaces 

 naked; costae and costulae sparingly clothed with minute, linear or irregu- 

 larly dilacerate scales, flatteued above and provided there with whitish-mem- 

 braoaceous, subinterrupted, unequal wings (the internodes narrow at the 

 base and broad at the apex); veins anastomosing, forming principally costal 

 and custular areolae, the branches free or slightly anastomosing. Sori 4 — 5 

 on each side of the lobes, occupying the posterior side of the ultimate lacinulae 

 (i. e. the teeth) from the base to the apex; indusium grey-brown. 



New Guinea. 



40. F»^A.ESLA-, St. Milaire. 



Sori linear, submarginal, uniting the apices of several veins. Indusium 

 linear, consisting of the reflexed, modified margin of the frond, often 2-valved, 

 the inner valve attached at the inner side of the sorus. Spores bilateral. 



Rhizome creeping. Stipes distant, not articulate to the rhizome, purveyed 

 with a single, ± semicylindrical vascular strand. Fronds compound; veins 

 free. Diels, in Engl. & Pranll, Nat. Pfl.Fam., P, fig. 156, B— E. 



America, Polynesia, Malaya. 



* (1) V. radula, C. Chr., Ind. Fil.; Pteris Radula, Bk., Journ. of 

 Bot., XVIII, 211. 



Rhizome wide-creeping. Stipes distant, brown, naked, 15 — 30 c.M. long, 

 rough with minute, raised points like the ilexuose rachis. Fronds lanceolate, 

 3-pinnatifid or o-pimrale, 20 — 40 c.M. long, 7 — 10 c.M. broad. Lower pinnae 

 erecto-patent, often cut away on the lower side at the base, lanceolate-deltoid. 



