8. aYMENOPHYLLUM. § 2. LEPTOCIONIUM. 79 



(32) H. praetcr visum, Chriat, Parnkr. d. Erde, 21, fig. 26; 

 Trichomanes denticulatum, Bk., Hk. Bk., Syn. Pil., 82. 



Rhizome slender, creeping. Stipes slender, naked, + 5—12 m.M. long. 

 Fronds 2'/,— 4 c.M. long, to 1'/, c.M. broad, ovate or oblong, 2-pinnatifid; 

 main rachis winged above, nudate below. Pinnae pinnatifid down to a narrowly 

 winged rachis. Ultimate segments linear, serrate, about 3 m.M. long, 1—2 

 m.M. broad; a single cost? only in each segment. Sori 1 to a pinna, ter- 

 minal on the lowest segments on the upperside; tube ;exser ted, the mouth 

 deeply 2-valved, the valves entire. 



Borneo. 



(33) H. violaeeum, Sleyen, MS. in Herb. Berol.; Leplocionium 

 violaceum, V. D. B., Ned. Kruidk. Arch., V, 147. 



Stipes flexuouse, terete, hirsute, 6 — 8 c.M. long. Fronds 8 — 10 c.M. 

 long, 4— 4^/2 c.M. broad, oblong, acuminate. Pinnae spreading, oblong. Pinnulae 

 erecto-patent, broad-oblong or obcuneate, rather remote or subdistant. Lacinulae 

 straight, parallel, elongate, the margin minutely and irregularly denticulate. 

 Texture firm; colour red-brownish, opaque; main rachis broadly winged above, 

 the wing entire, flat; veins flexuose, all paleaceo-hirsute. Sori axillary, at 

 length turned back on the frond (resupinate) ; indusium immersed, 2-valved 

 ^k — '/i'Way down, the tube cuneate, the valves broadly oblong, entire. 



Philippines. 



* (34) H. muKiflduin, Su,., Hk. Bk., Syn. Pil., 69; Hk. & Grev.,Ic. 

 Fil., tab. CLXVll;' H. hlabalmeo, GhneU Fiii Sarao., I, 4; //. polyanlhos, Sw., 

 var. dentatum, Ces., Pel. Becc. Polin., 2. 



Stipes 5 — 10 c.M. long, wiry, naked. Pronds broadly ovate-lanceolate, 

 g — 20 c.M. long, 2^/2 — 12 Vj ^-M- broad; main rachis naked or scaly, winged 

 above. Pinnae and pinnulae rhomboidal-lanceolate, the rachises winged, + 

 wavy. Ultimate segments linear, to 1% m.M. long, to 1 m.M. broad, con- 

 spiculously dentate with short or less short teeth. Sori 2 — 12 to a pinna, 

 Tormn^l- on W-«lti«»l» segments; indusium oblong, tubular below, the 

 valves short, entire; receptacle sometimes exserted. 



Philippines and Celebes to Polynesia; New Zealand, New South Wales. 



(3S) H. serrulatum, C. Chr., Ind. Pil.; H. Smithii, Hk., Hk. Bk., 

 Syn. Pil, 69, p. p.; Hk., Spec. Fil., I, tab. XXXV, B; Bedd., Ferns Br.I., 

 n tab. CCLXXVn. iSeTthe^Appendix., 1 See Supplement 1. 



