﻿426 55. DIPLAZIUM. § 2. ANISOGONIIIM. 



Caudex erect, lo 15 c.M. high, densely clothed with narrow, lanceolate 

 scales. Stipes 15 — 60 c.M. long, strong, erect, tufted. Fronds 60 — 180 c.M. 

 long or longer, 2-piunale, deltoid or broadly lanceolate. Lower pinnae 50 — 

 45 c.M. long, 15—20 c.M. broad. Pinnulae 7—15 c.M. long, l*/^— ^'/^ c.M. 

 broad, short-stalked, the point acuminate, the edge crenate to shallowly lobed, 

 the lobes entire or serrate, the base truncate and often auricled on both sides. 

 Texture subcoriaceous; rachis often pubescent; main veins distinct, copiously 

 pinnate with 6 — 10 veins on each side in each lobe, which are beginning to 

 unite a short distance from the midrib, the higher ones often free. Sori 

 copious, occupying nearly all the veins, reaching ± the margin. — Lowest 

 pinnae sometimes simple. 



Trop. Asia ^ Polynesia. 



^4. .i^THYiS-IUlM, Moth. 



Characters of Diplazium, except that the sori and indusia are oblong, often 

 strongly recurved, sometimes horseshoe-shaped or + reniform and then some- 

 times hardly diflerent from those of Lastraea, the lower of the same group 

 rarely, the higher never double. Fronds at least simply pinnate; veins free. 

 Hk. Bk, Syu. Fil , tab. IV, fig. 58, e; Diets, in Engl. & Prantl, Nat. Pfl. Fam., 

 I^ fig. 120. 



a. 



u.a. 



Fronds simply pinnate. Pinnae entire or slightly lobed, at best the lower 

 ones pinnati/id. 



§. Rachis winged throughout. (la) A. nanum. 



§.§. Rachis not ivinged, or only winged in the upper half. 

 •J-. Fronds herbaceous, + 7^2 — i5 c.M. long. 



>K. Fronds + i—2 c.M. broad. (16) A. pusillum. 



if.:^. Fronds ± 2—2^1^ c.M. broad. (Ic) A. Toppingianum. 



'i'.'^. Fronds coriaceous, ± i5 — 50 c.M. long. (2) A. gedeanum. 



Fronds more copiously 2-pinnali/id lo 3-pinnate. 

 b. Pinnae pinnati/id, sometimes pinnate at the base. 

 ■^. Lower pinnae not redu ed. 



>tc. Fronds small, to + 9 c.M. broad. 



X. Indusium reniform. (5a) A. anisopterum. 



(56) A. benguetense. 



