in8 31. PTERIS, LITOBROCHIA. 



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

 divided of the subgenus. 



61. P. (Lito.) lancecefolia, Agardh ; st. erect, naked, pale, glossy ; fr. simply 

 pinnate, 12-18 in. 1., 6-9 in. br. ; pinnae 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 pinnae. Hk. Sp. 2. p. 212. P. alternifolia, 



Hab. 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 pinnce, the 

 largest of which are 1 ft. 1., more than 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 Fe"e appear to be closely allied. 

 Frond sometimes quite entire. 



63. P. (Lito.) Mannii, Baker ; st. 3 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.) laurea, 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., ^-f in.br. ; 

 lateral pinnce 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, aud 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 pinnce 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 pair, 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, f in. br. ; texture scarcely more than herbaceous ; rachis and both 

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

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

 t. 140. j8, P.Barteri; rachis hairy; costa beneath and whole under surface 

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



