﻿112 10. LYGODIUM. § 1. EULYGODIDM. 



often numerous, not rarely subpinnale, conspicuously narrowed or contracted, 

 1 — 10 m.M. broad. Spikes 2 — 10 m.M. long. Spores verruculose. — 



Forma typica: Spores without crests. Laciniae entire, not dichotomous 

 at the apex. 



War. moinstruosiim : Spores without crests. Laciniae dichotomous 

 at the apex. 



\fiiV. deiitieulatuui : Spores without crests. Laciniae denticulate, 

 not dichotomous at the apex. 



War. cristatuiii: Like var. denticulatum, but the spores purveyed 

 with 6 joining crests. Laciniae ± V2 ~1 c.M. broad. Sumatra (Burck). 



Trop. Asia, Queensland. 



(4) Ei. digitatum, J»r., Prantl, Morph. d. Gefasscr., II, Schiz., 66; 

 L. dichoiomum, Siv., Rac, Flor. Btz., I, 8, p. p. 



Primary petioles nearly wanting ; secondary ones 1 ^2 — ^ c.M. long, semi- 

 terete, marginate. Pinnae 2-partite or subpinnate. Pinnulae short-stalked, 

 not articulate, digitate with 3 — 6 laciniae 7 — 10 c.M. long, ± 1 c.M. broad, 

 the apex acute, the margin serrulate, not bordered by a hypodermical strand. 

 Texture suhcoriaceous ; surfaces naked, upper surface glossy, the under one 

 opaque ; rachis reddish-stramineous, the hairs of the gemmiform apex blackish. 

 Fertile pinnae 2-partite, each segment with + 3 laciniae to 35 c.M. long, + 5 

 m.M. broad. Spikes to 6 m.M. long. Spores rather large, coarsely tuberculate. 



Trop. Asia. 



* (5) li. trifurca^uni, Sk., Hk. Bk., Syn. Fil , 437 ; Prantl, Morph. d. 

 Gefasscr., II, Schiz., 67 ; L. circinatum, Sw., var. Irifurcalnm, Christ, in Warb., 

 Mons., I, 93. 



Primary petioles very short or obsolete, secondary ones 2'/^ — 4 c.M. long. 

 Pinnae forked, 3-furcate or 2 X forked and each division 2-partite nearly to 

 the base. Ultimate barren segments 10 — 15 c.M. long, ± 2 — 2^2 c.M. broad, 

 not articulate, the point acute or bluntish, the edge crenulate. Texture sub- 

 coriaceous ; rachis and surfaces naked. Fei'tile pinnae varying from dichotomous 

 lo 5-pinnate, the divisions contracted and often cut down nearly or quite to 

 the costa with the short spikes in groups of 5—6 upon the lobes. Spores 

 coarsely verrucose. — The Banca plant (leg. Berkhout) has the spikes rather 

 long, in groups of 1 — 3, and the spores verruculose and crested. Probably 

 an intermediate form between this species and L. circinatum, Sw. 



Banca, Celebes, Amboyna, New Guinea; Polynesia, Melanesia. 



