ins 31. PTERTS, §§§§§§ LITOEROCHIA. 



ITab. New Caledonia ; discovered by M. Vieillard. — A very distinct species, the least 

 divided of the subgenus. 



61. P. (Lite.) lancercfoHa, Agardh ; st. erect, naked, pale, glossy ; _/r. simply 

 pinnate, 12-18 in. 1., 6-9 in. br. ; pinnce linear, entire, slightly stalked, 4-6 in. 1., 

 ^ in. br., erecto-patent, the lowest about 1 in. apart ; texture subcoriaceous ; 

 rachis and both surfaces naked ; veins copiously anastomosing ; sori very narrow ; 

 falling short of the apex of the piniTae. — Hk. Sp. 2. p. 212. P. alternifolia, 

 Bojei\ 



H.ib. Madagascar ; discovered by M. Bojer, 



62. P. (Lito.) splendens, Kaulf. ; st. erect, naked, dull, slightly scabrous ; fr. 

 ample, simply pinnate, with numerous pairs of nearly sessile linear joawnce, the 

 largest of which are 1 ft. 1., more tlian 1 in. br., spinuloso-serrated towards the 

 acuminate point ; texture coriaceous ; rachis and both surfaces naked ; veins con- 

 spicuous, copiously anastomosing ; sori falling rather short of the apex of the 

 pinnee, ultimately hiding the narrow invol. — Hk. Sp. 2. p. 211. 



Hab. Brazil. — P. chrysodioides and papyracea of F6e appear to be closely allied. 

 Frond someliines quite entire. 



63. P. (Lito.) 3Iannii, Baker ; st. 8 ft. 1^ slender, flexuose, downy ; fr. 

 12-18 in. 1., 6-9 in. br., the terminal pinna subhastate with two erecto-patent, 

 broad-lanceolate lobes ; lateral pinnce in 5 to 7 nearly opposite pairs, 1^-3 in. 

 apart, the lowest pair but one the largest, 6 in. 1., under 1 in. br., linear, the 

 point acute, the margin only slightly sinuated, the base deeply cordate, and the 

 upper side slightly auricled ; texture herbaceous ; rachis rather thickly clothed 

 with fine spreading hairs, and both surfaces, especially the midrib, also hairy ; 

 veins fine, anastomosing copiously ; sori continuous along the undulated edge 

 nearly to the point. 



Hab. Fernando Po ; discovered by Gustave Mann. 



*'* Pinnatce. Sp. 64-71. 



64. P. (Lito.) laiirea, Desv. ; st. 1 ft. 1., erect, naked, polished, straw-coloured 

 or pale bright-brown ; fr. 12-18 in. 1., 9 in. br., oblong, the terminal pinna 

 linear, entire, deeply serrated towards the point, 6 in. or more 1., j-| in.br.; 

 lateral pinna} numerous, 1-2 in. apart at the base, even the upper ones slightly 

 compound, the lower ones branched, with a long entire point and one or 

 two small stalked linear pinnl. on each side, which are occasionally again 

 compound ; texture subcoriaceous ; rachis and both surfaces naked ; veins 1-1|- 

 lin. apart at the base, and the bases sometimes connected by a transverse veinlet, 

 often twice branched before they reach the edge ; invol. narrow, membranous. 

 —Hk. Sp. 2. p. 166. P. triphylla, Agardh. Hk. Fil. 2. p. 171. t. 131. B. 



Hab. Madagascar ; gathered originally by Dr. Lyall, and much finer specimens have 

 been sent recently by Dr. Meller. 



65. P. (Lito.) Currori, Ilk. ; st. stout, erect, naked, straw-coloured ; fr. 

 ample, several ft. 1., 2 ft. or more br., the terminal pinna subhastate, deeply 

 lobed ; lateral jnnnce numerous, the upper ones 4-6 in. 1., 1 in. br., the margin 

 deeply and broadly sinuated, the lowest (in our specimens) in opposite sessile 

 pairs 2-3 in. distant from the next ])air, 16 in. 1., 5 in. br., cut down within a 

 very short distance of the rachis in the lower part into lanceolate sinuated lobes 

 3 in. deep, | in. br. ; texture scarcely more than herbaceous ; rachis and both 

 surfaces slightly hairy ; veins fine, copiously anastomosing ; sori in numerous 

 patches, which are sometimes interrujjted and very short. — Hk. Sp. 2. p. 232. 

 ^.140. — /3, P. Barteri; rachis hairy; costa beneath and whole under surface 

 clothed with long, fine spreading liairs ; veins stronger and more prominent. 



