19. POLYSTICHUM. 167 



Phegop. & Aspid., 51; Hk., Spec. Fil., IV, tab. CCXXI; A. aculeatum, Sw., 

 var. obtmum, Christ, Bull. Herb. Boiss., VI, 192; — var. densum; A. densum, 

 Zipp., MS. in Herb. Bog. | See Supplement 1. 



Stipes 10— IS c.M. long, scaly; the scales copious, ferrugineous, ovate, 

 long-pointed, soft, mixed with narrow, subulate ones which continue upon 

 the rachis, becoming there more or less fibril-like, both forms ciliate. Fronds 

 + 20— 30 c.M.^^ong, ovate-lanceolate, acuminate. Lower pinnae distant, sub- 

 spreading, 5— tS- c.M. long, I'/j- 2'/, c.M. broad. Pinnulae rhomboid-ovate, 

 obtusely auriculate, obtuse, the teeth blunt or adpresso-mucronate. Texture 

 coriaceo-membranaceous; rachis densely & decidiiously scaly orfibrillose; under 

 surface more or less scaly, the scales small, partially filiform, partially stel- 

 lato-fimbriate. Sori ± medial; indusium peltate, thin, fringed at the margin. — 

 Very near P. aculeatum, Schott. 



Var. denisuin: Fronds longer and broader, copiously 2-pinnate. 



Luzon; — var. densum: ? (Zippelius). 



* (S) B*. biaristatum, Moofe, Ind., 86; P aculeatum, Schott, var. 

 biarislatum, Bedd., Handb. Ind. Perns, 209; C. Chr., Ind. Fil.; Aspidiwm biaristatum, 

 BL, Enum., 164; Hk., Spec. Fil., IV, 29; A. amabile, Rac. (not BL), Flor. 

 Btz., I, 172. 



Stipes tufted, 20 — 40 c.M. long, very paleaceous below with long, subu- 

 late,] ciliate, castaneous scales (sometimes having a black, central line) mixed 

 with large, broad-lanceolate, intensely black ones, \Vhich are brown at the 

 margin, the rest of the stipe and the rachis clothed with more or less deciduous 

 and copious, black-brown, crinite scales, at length often glabrous. Fronds 

 50 — 60 c.M. long, from a broad base ovate-oblong, suddenly acuminate at 

 the apex. Pinnae sessile or subsessile, 10 — 20 c.M. long, acuminate, serrate 

 towards the apex, S'/j — 4 c.M. broad at the base. Pinnulae subrhomboidal, 

 acute, serrate, obsoletely auriculate, the serratures mucronato-spinose. Tex- 

 ture coriaceous; under surface paleaceo-pilose. Sori medial or + submarginal; 

 indusium rather small, peltate. — ? Different from P. vestitum, Pr. [A. vesti- 

 turn, Sw., Mett. Farng. IV, Phegop. & Aspid, 45). 



Malaya; Br. India. 



(6) P. lobatum, Pr., Tent. Pterid., 83; Bau. & Hk., Gen. Fil., 

 tab. XL VIII, C; Aspidium lobatum, Sw., Christ, Farnkr. d. Erde, 238; — var. 

 discretum, Christ, in Ann. Btz., XV, 125; A. rfwcre^Mm^ i>o», Prod. Flor. Nepal., 

 4; P. discretum. Diets in Engl. & Prantl, Nat. Pfl.Fam., I*, 191. 



