768 92. CHWSTENSENIA. 



(1) C Cniiiingiana, Ctu-ist, Philipp. Journ., II, 186. 



Rhizome thick, short, fleshy. Stipes approximate, or subfasciculate iu 

 the younger plants, to 1 4 c.M. long, rufo-stramineous and furfuraceous, as are 

 the costae and main veins. Fronds either simple, ovate, subcordale at the 

 base, 8 — 16 c.M. long, 3 — 10 c.M. broad, repand or coarsely toothed, shortly 

 acute at the apex, or digitate with the central segment broadly ovate, to 

 15 C.M. long, + 5 C.M. broad, acute at the point, repando-lobate at the ed- 

 ge, narrowly cuneate at the base and the lateral segments adnata, very une- 

 qual-sided, cordate on the produced lower, narrowly cuneate on the up- 

 per side, + 9 c.M. long, ± 3 c.M. broad. Texture succulent; under surface 

 whitish, provided with numerous roundish pores; main veins distinct, ob- 

 lique. Synangia in 2 rows between the main veins, + 4 in a row. 



Mindanao. 



• (2) C. aesculifolia, Maaf., C. Chr., Ind. Fil.; Kaulfussia aescu- 

 Ufolia, BL, Rac, Flor. Btz., I, 2; Hk. & Grev., Ic. Fil., tab. CCXXIX; K. 

 assamica. Griff., Bau. & Hk., Gen. Fil., tab. LIX, A: Bedd., Ferns Br.I, II, 

 tab. CLXXXV. 



Rhizome creeping.^ Stipes succulent, 20— 4S c.M. long, auricled at the 

 base with 2 fleshy stipulae. Fronds digitate, ternate or quinate. Central seg- 

 ment the largest, ovate-lanceolate, narrowed to both ends, with the edge entire, 

 crenate or slightly toothed, 20—40 c.M. long, 7—12 c.M. broad; lateral seg- 

 ments similar but smaller, falcate, unequal-sided. Texture fleshy-herbaceous; 

 surfaces naked, but the lower side dotted over with copious stomata-like 

 pores; main veins conspicuous, pinnate; veins anastomosing; areolae copious, 

 immersed, with free veinlets. Synangia copious, scattered irregularly. 



Malaya; Assam. 



