806 APPENDIX. 14. DENNSTAEDTIA. 



to 2 M. long, aculeate. Fronds to 5 M. long, + 1—1 Vs M. broad, 5-pinnate, 

 the main rachis short-aculeate, castaneous. Pinnae opposite, apparently arti- 

 culate to the main rachis, broadly lanceolate, 20 — 25 c.M. broad, acuminate, 



1 the rachis aculeate towards the base. Pinnulae sessile, pseudo-articulate, the 



2 lower ones opposite, the higher alternate, acuminate, the rachis slightly pu- 

 §* bescent. Leaflets sessile, obtuse, auriculate, to I'/j c.M. long, to 7 m.M. 



c 



02 



broad, the edge cut more than Va'^^Y ^own to the costa. Texture subco- 

 ^ riaceous; costae slightly pubescent beneath, the rest naked. Sori to 7 on 



a leaflet, at the tops of the sinuses, inflexed. 

 Luzon. 



* (14) D, sumatrana, e. A. «. A. — Insert: Bull. Dep. Agr. I. 

 N., i908, XVin, 6. 



IS. OLEAJNI>ie,-A., CavatUtte*. 



• (1) O. euspidala, Bh. — A form gathered in New Guinea has 

 the rhizome scales subulate and much deflexed at the apex, the fronds ± 

 25 — 30 c.M. long, ± 4 — oc.M. broad, the surfaces hairy on the veins, the 

 indusia fugacious. — This may be Copeland's 0. colubrina, Copel., var. mem- 

 branacea. 



* (3) O. colubrina, Copel., var. brachypus. — Copeland distingui- 

 shes 2 forms (Philipp. Journ., Ill, 32 — 35): 



Var. nitida (? var. brachypus): Fronds to 40 c.M. long, ± 2 c.M. broad, 

 coriaceous, soon naked, glossy. 



Var. membranacea (? 0. cuspidata, Bk). Fronds ± 20 c.M. long, ± 

 2'/2 C.M. broad, narrowly caudate, pubescent, ciliate, membranaceous. Sori 

 small, in an irregular row + medial between the costa and margin. 



(4a)' O. l¥erneri, MUt., Fed., Rep., V, 40. 



Rhizome long, scandent, subcompressed, branched, scaly; scales dense, 

 lanceolate, deciduously acuminate at both ends, at length ovate, adpressed, 

 peltate, the centre black, the margin rufo-ferrugineous, fimbriate; branches 

 3 — 10 c.M. or more apart, simple or branched again, slightly scaly, the ul- 

 timate ones to ' 2— S c M. long, bearing the fronds. Stipes ± 2—4 c.M. 

 a[, articulate ± at the base. Fronds dimorphous. Barren fronds elongate- 



