45a. PTERis. 371 



§ 2. CAMPTERIA. 



Fronds pinnately divided, not 3-partite; lowest pinnae not much longer than 

 the next higher ones (*). 



6. Fronds small or middle-sized, under iOO c.M. long. (36) Pt. biaurita. 

 h.h. Fronds large, more than 400 c.M. long. (37) Pt. geminata. 



.a. Fronds 3-partite; branches similarly 2-pinnatifid, the lateral ones sometimes 

 nearly as long as the central one, whether or not forked at the base on 

 the lower side, and if soothe secondary branches not rarely forked again, 

 ifi. Texture herbaceous; barren ultimate segments flat at the edge. 



(38) Pt. Wallichiana. 

 ifi.if.. Texture coriaceous; barren ultimate segments revolute at the edge. 



(39) Pt. heterophlebia. 



* (36) Pt. biaurita, JL., Rac, Flor Btz., I, 187; Pt. quadriaurita, 

 Retz., var. biaurita, Christ, Ann. Btz., XV, 110; Campteria biaurita, Hk., Bedd., 

 Perns S.I., tab. XLIV; Bau. & Hk., Gen. Fil., tab. LXV, A. 



Rhizome erect, short, densely clothed with short, deltoid-lanceolate scales. 

 Stipes 30—70 c.M. long, strong, erect, naked, or scaly at the base, the scales 

 very fugacious. Fronds to 90 c.M. long, with a terminal pinna 7 — 30 c.M. 

 long, 2 — 5 c.M. broad, cut down nearly to the costa into numerous spreading 

 or erecto-patent, linear, straight or falcate, entire lobes on each side, which 

 are to + Vs c.M. broad. Lateral pinnae few or several on each side, similar 

 to the terminal one, the lower ones often forked at the base. Texture her- 

 baceous to subcoriaceous ; rachis and surfaces naked, under surface sometimes 

 glaucous; veins usually forked. Sori commonly continued to the apex. — 

 Differs from Pt. quadriaurita, Retz only in the costulae being united at the 

 base by an arching vein. 



(37) Pt. geminata, Wall., List, No. 2180; Pt: maxima, Bk., Hk. 

 Bk., Syn. Fil., 480; Pt. Kleiniana, Christ (not Pr.), Copel., Polypod. Philipp., 

 103; Campteria Kleiniana, Pr., Bedd., Handb. Ind. Ferns, 116; Pr., Tent. Pterid., 

 tab. V, fig. 19; C. anamallayensis, Bedd., Ferns S.L, tab. XLV. 



(*) See also Pt. quadriaurita. Rets, Tar. nemoralis & Pt. decussata, 



J. Sm. 



