798 APPEproix. 8. htmenophyllum. 



(29n) H. campanulalum, Christ, Philipp. Journ , II, 155. 



Densely caespitose. Rhizome slender, but firm, branched. Stipes + I'/i 

 c.M. long, slender, black and hispid with rigid hairs, as is Ihe rachis. Fronds 

 + 4 c.M. long, ± 1 c.M. broad, oblong, narrowed at both ends. Pinnae + 

 6 on each side, arcuate-reflexed, + 1 c.M. long, flabellatipartite with 4 — 5 

 linear lobes hardly 1 m.M. broad and sparingly aristate-serrale. Texture ra- 

 ther rigid; colour fuscous. Sori few, placed near the base of the costae, 

 stalked; indusiuui campanulate, the Talves ovate, entire. — General* habit of 

 H. tunbridgense, Sm. 



Negros. 



(51a) H. Merrillii, Chw^t, Philipp. Journ., II, 154. 



Rhizome creeping, filiform, caespitose, sparingly clothed with short, red- 

 dish-brown hairs, as are the stipes. Stipes filiform, + 5 c.M. long. Fronds 

 ovate, + 6 c.M. long, ± .i c.M. broad, acuminate, narrowed at the base, the 

 rachis sparingly hairy, not winged. Pinnae close, + 8 on each side, cuneate- 

 ovate, higher acute, sessile, not adnate, lower stalked, + 6 m.M. broad, deep- 

 ly pinnalifid. Secondary segments cuneate, obtuse, + 5 on each side, deep- 

 ly incised. Lobes lanceolate, flat. ± 2 m.M. broad, serrulate-dentate. Texture 

 rather rigid ; colour black-brown. Sori + 3 — 4 on each side, solitary on the 

 pinnae, occupying the lowest anterior laciniae; indusium ovate, the apex 2- 

 valved, the valves serrulate; receptacle much exserted. 



Luzon. 



* (54) H. inuHifldum, S*c. — Insert as a synonym: Trichomanes 

 mul/i /ilium, Forsl., (oldest name). 



(55) H. Beri'ulatnni, C. Chr. — Insert as a synonym : Didymoglos- 

 sum serrulalum, Pr., (oldest name). 



A form gathered in Johor State (Malacca), which may be a narrow inter- 

 mediate between this species and H. multifidum, 6'w.. has the fronds 5 — 8 

 c.M. long. 1 '/j — 2 c M. broad, the main rachis flexuose, sparingly piloso-palea- 

 ceous below, winged above, Ihe wing entire. Pinnae e recto-patent, pinnatifid, 

 the segments linear, simple or forked, the ultimate lobes 2—5 m.M. long, 

 under 1 m.M. broad, serrate, the serratures rather distant. Indusium ellip- 

 tical, whether or not exserled. 



• ^42) H. aculeatiini, Rac. — Insert as a synonym: Trichomanes 

 aculealum, J. Sm., (oldest name). 



