27. CYSTOPTEEIS. 201 



lower side often the largest. Pinnulae lanceolate-triangular, the rachis 

 tomentose at the base on the upper side. Ultimate leaflets cut down 

 nearly or quite to the costa into blunt, entire, toothed or lobed segments 

 to 3 mm. long, to 1 V2 mm. broad, narrowed at the base. Texture thinly 

 or more firmly herbaceous; surfaces sparingly hairy on the veins; main 

 rachis somewhat nodose at the place of insertion of the pinnae and 

 provided there with ferrugineous tomentum on the upper side; secondary 

 and tertiary rachises provided with a minute scale at the base beneath. 

 Sori small, numerous, solitary and submarginal or medial on the ultimate 

 teeth or lobes. — A specimen gathered in Java by Paidan has the 

 indusium intermediate between this and Stenolepia. 



Forma typica: Stipe and rachis smooth, or rough by the persistent 

 bases of fallen scales. — ■ Malaya to North India. 



Var. alpiiia: Fronds small, to + 15 cm. long; stipes scaly. — 

 Neio Guinea, Celebes. 



Vai*. inontana: Rachises scabrous, densely clothed with gland- 

 like hairs or squamules; ultimate segments very minute, the lower 

 acutely toothed; veins glandular beneath, the glands yellow, cylindrical. 

 — New Guinea. 



2'7'a. STETVOLEPIA^, r. A. ». JR. 



Sori subglobose, dorsal on a vein or veinlet or at the forking of a 

 vein. Indusium small, narrow, not hood-shaped, fastened by a gradually 

 narrowed base under the sorus i. e. the indusium is attached to the 

 receptacle on 1 side, at length reflexed or deciduous ; receptacle elevated. 



Rhizome erect. Stipes not articulate to the rhizome. Fronds 

 decompound; veins free, simple or forked. 



(1) St. tristis, r. A. r. n., in Bull. Dep. Agr. I. N., 1909, XXVII, 

 46, tab. VII; C. Chr., Ind. Fil., Suppl.; Alsopfdla tristis, BL, Hk. Bk., 

 Syn. Fil., 44; Gijstopteris tristis, Mett., Ann. Mus. Bot. L. B., I, 241; 

 Davallia tristis, Rac, Flor. Btz., I, 131; Aspidium triste, Bl. (oldest name). 



Rhizome erect, short, densely clothed with entire, lanceolate, brown 

 scales. Stipes 50--90 cm. long, + 7 mm. thick at the scaly, tuberculato- 

 asperous base, brown, upward deciduously flbrillose and punctulato- 

 asperulous, as are the rachises Fronds ovate-lanceolate to deltoid. 



