166 31. PTERIS, §§§§§ DORYOPTERIS. 



■whether tliis be not a Campteroid form of P. tripartita, which it resembles closely iu all 

 respects except venation. 



§§§§§ I^oryopteris, J. Smith. Fronds small, sagittate or subpedate, veins 

 copioush/ anastomosing, without free included veinlets. Sp. 61-69. 



51. P. (Dory.) lonchophora, Metten. ; st. 1-1^ in. 1., naked, polished, dark 

 chesnut-brown ; fr. 1-3 in. 1., linear or linear-oblong from a cordate base, entire 

 or furnished at the base with two short spreading lobes with rounded basal 

 auricles, when undivided \-^ in. br. ; texture coriaceous ; rachis and both 

 surfaces naked ; veins anastomosing, immersed ; sori subcontinuous ; invol. 

 crisped, subscariose. — Mett. Cheil. p. 6. t. 3. 



Hab. E.io Janeiro. Better perhaps placed in Pellwa. 



52. P. (Dory.) sagittifolia, Raddi ; st. 4-6 in. 1., erect, naked, blackish, 

 polished ; fr. 4-6 in. 1. from the top of the stipe to the apex, 2-3 in. br. oppo- 

 site the former point, hastate-lanceolate or subtriangular, the basal lobes trian- 

 gular acuminate, directed downwards, the margin entire ; texture coriaceous ; 

 both surfaces naked ; inidrib blackish like the stipe ; veins inconspicuous, 

 copiously anastomosing ; sori continued all round the margin. — Ex. F. t. 39. — 

 /3, P. hastata, Raddi ; with two large lateral lobes spreading horizontally in 

 addition to the deflexed basal ones. — Hk. Sp. -2. p. 207- 



Hab. Venezuela southward to Brazil, 



53. P. (Dory.) ludens, Wallich ; st. naked, or below pubescent, polished, 

 nearly black, that of the barren frond 3-4 in. 1. ; barren fr. varying in shape 

 from triangular with two slightly deflexed basal lobes to hastate, with two basal 

 and two large spreading lateral lobes, the margin entire ; fertile fr. with a stalk 

 often 1 ft. 1., 4-6 in. each way, cut down into five linear-lanceolate or lanceolate 

 lobes, one erect, two spreading, and two deflexed, of which all, except the last, 

 are sometimes again forked ; texture coriaceous ; costa polished like the stipe ; 

 veins hidden ; sori continuous all round the margin. — Hk. Sp. 2. p. 210. 



Hab. Malayan Peninsula and Philippine Islands. 



54. P. (Dory.) ornithopus, Metten. ; st. 6-12 in. I., strong, wiry, fiexuose, 

 polished, dark brownish-black, naked ; barren fr. 8 in. deep, 4 in. br., palmately 

 lobed, the central segment deep, triangular, the three lateral ones on each side 

 not so deep and blunter ; fertile fr. cut down within ^ in. of the base into seven 

 entire linear lobes 2-3 in. 1., ^ in. br., the outer ones each with a smaller linear 

 lobe at the base, each with a broad thick central costa ; texture very leatheiy ; 

 both surfaces naked ; veins inconspicuous, anastomosing copiously ; invol. broad, 

 leathery. — Peilaea lomunacea y, Hi: Sp. Fit. p. 133. 



Hab. South of Brazil, Burchell, Gardner, and Lindberr/. — This agrees with P. palmata 

 in texture and venation, difiFering in having on the fertile frond several narrow segments 

 liiie the claws of a bird radiating from an undivided centre. 



55. P. {Dory.) palmata, W\\\(i.\ st. 1 ft. or more 1., erect, nearly naked, 

 polished, chesnut-brown ; fr. 4-9 in. each way, the barren ones with a broad 

 undivided centre and five or more triangular lobes, of which the terminal one is 

 the largest, the lowest deflexed and the sinuses rounded ; fertile fr. cut down to 

 a broadly winged centre into linear lobes, of which the upper ones are entire 

 and the lower ones again cut on the lower side, the longest entire ones 3-4 in. 1., 

 J-§ in. br ; texture tliick and coriaceous ; rachis and both surfaces naked ; costce 

 black and polished ; veijis anastomosing copiously ; sori continued to the apex of 

 the segments. — Hk. Gard. F. t. 22. P. pedata, Hk. Sp. Fil. 2. p. 208. in part. 

 P. coUina, Raddi. Dory, euchlora, Klotzsch. P. pedatoides, Vcsv. 



