164 18. CYCLOPELTlS. 



• (2) C Presliana, JBerIc, C. Chr., Ind. Fil. ; Aspidium Pre4iamm 

 Melt., Farng., IV, Phegop. & Aspid., 56 ; Polystickum Preslianum, Moore, Copel., 

 Polypod. Philipp., 16; — var. biauriculata. 

 ; Like C. semicordata, /. Sm., but : Stipes clothed with long, spreading 



3 scales, which are brown and subulate. Pinnae numerous, distant or approxi- 



i mate, spreading, the edge entire, crenato-sinuate or subrepand, highest 



I pinnae often confluent with the terminal one, the upper base subcordale or 



; rounded to slightly auricled, the lower base conspicuously amicled with an 



I oblong, rounded, hamato-recurvate lobe which is adpressed on the rachis. 



War. biauriculata: Upper base with a conspicuous, deltoid, + 

 deflexed auricle, which has the apex obliquely truncate. 



Malaya; Burmah, Tonkin; — var. biauriculata: New Guinea (Peekel). 



19- POLYSTIOHTJJWE, JKoffc. 



Sori roundish, dorsal or terminal on the veins. Indusium normally round 

 and peltate, exceptionally reniform and attached by the sinus. 



Rhizome creeping or erect. Stipes not articulate to the rhizome. Fronds 

 at least pinnate, usually tough or rigid, the leaflets mostly unequal-sided, i.e. 

 the lower side less developed, or the upper base broadly cuneate to truncate 

 and often auricled, the lower -^im- obliquely cut away; the edges commonly 

 mucronate or spinulose; veins free. Hk. Bk., Syn. Fil., tab. V, fig. 45, a — b; 

 Diels, in Engl. & Prantl, Nat. Pfl.Fam., \\ fig. 99. 



Tropical and extra-tropical." 



a. Fronds simply pinnate, at best 3-pinnatifid al the base. (1) P. auriculatum. 

 a.a. Fronds at least ^pinnate at the base. 



h. Main rachis densely scaly, fibrillose or hairy. 



c. T^ture membranaceous or herbaceous. (2) P. diaphanum. 



C.C Texture papyraceous to coriaceous. 



d. Pinnulae distinct, short-stalked, not joined at the base. 

 e. Scales of stipe and rachis ferrugineous or fulvous.' 



f. Auricles of pinnulae aculeate-apiculate (mucron- 

 ate or aristate). (3) P. aculeatum. 

 *'*' f-f' Auricles of pinnulae obtuse (rounded or truncate). 



(4) P. obtusum. 



