166 31. PTER1S, DORYOPTERIS. 



whether this be not a Campteroid form of P. tripartita, which it resembles closely in all 

 respects except venation. 



Doryopteris, J. Smith. Fronds small, sagittate or subpedate, veins 

 copiously anastomosing, without free included veinlets. Sp. 51-59. 



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

 chesnut-brown ; Jr. 1-3 in. I., 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. 5. t. 3. 



Hab. Rio Janeiro. 



52. P. (Dory.) sagittifolia, Raddi ; st. 4-6 in. ]., 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 ; midrib 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. 1., strong, wiry, flexuose, 

 polished, dark brownish-black, naked ; barren fr. 3 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 leathery ; 

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

 leathery. P. lomariacea y, Hk. Sp. Fil.p. 133. 



Hab. South of Brazil, Burchell, Gardner, and Lindberg. This agrees with P. palmata 

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

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



55. P. (Dory.) palmata, Willd. ; 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., 

 - in. br ; texture thick and coriaceous ; rachis and both surfaces naked ; costce 

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

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

 P. eollina, Raddi. Dory, euchlora, Rlotzsch. D. nobilis, Hort. 



