31. PTERIS, LITOBROCHIA. 167 



Hab. Tropical America, from West Indies and Columbia southward to Peru and Rio 

 Janeiro ; and there is a specimen from Wallich marked P. Mysurensis, Heyne, from 

 Dindighul in Hindostan, in Herb. Hooker. 



56. P. .(Dory.) pedata, Linn.; st. blackish, naked, polished, those of the" 

 barren fr. 3-4 in. 1. ; barren fr. 1-2 in. each way, with an almost entire triangular 

 apex, and a bluntly divided lateral lobe on each side ; fertile fr. 4-6 in. each way, 

 cut down nearly to the rachis into several pinnae on each side, of which the 

 upper ones are linear and entire (1-1 in. 1., J- in. br.), the lowest pair much 

 larger than the others, and with several pinnules on the under side, the lowest 

 of which are again pinnatifid ; texture scarcely more than herbaceous ; rachis 

 and both surfaces naked ; costce dark-coloured and polished ; sori reaching to 

 the point of the segments. Hk. Ex. F. p. 34. Sp. 2. p. 208. in part. 



Hab. Tropical America, from the West Indies southward to Brazil. 



57. P. (Dory.) decipiens, Hk. ; st. 6 in. 1., erect, naked, polished, nearly 

 black ; fr. 3-6 in. each way, nearly or quite cut down to the rachis above the 

 lower pair of pinnse ; upper divisions entire, falcate ; the central ones deeply cut, 

 the lower pair much larger than the others ; lowest pinnl. 1^-2 in. 1., cut down 

 nearly to the rachis into 3-6 deep linear-oblong lobes ; texture coriaceous, 

 rachis and both surfaces naked ; costce black, polished ; veins hidden, anasto- 

 mosing copiously ; sori reaching the tip of the segments. Hk. Sp. 2. p. 209. 



Hab. Sandwich Isles. Precisely resembling Pellcea geraniifolia in size and outline, 

 differing by its Pteroid sori and anastomosing venation. 



58. P. (Dory.) Feliciennce, F. Muell. ; st. slender, smooth, 6 in. 1., stramineous 

 above, ebeneous at the base ; fr. cordate-deltoid in general outline, with a 

 terminal lobe and 3 to 5 deeply pinnatifid lanceolate oblong pinnce, the lowest 

 pair distant from the others, slightly stalked, 3 in. 1., the upper ones sessile or 

 decurrent ; lateral lobes of the pinnae ovate or oblong crenulate ; texture mem- 

 branous ; rachis slender, naked, stramineous ; veins reticulated. F. Muell, 

 Frag. 36. p. 124. 



Hab. Rockingham Bay, Australia, Dallachy. This we have not seen. 



59. P. (Dory.) decora, Bracken. ; st. 6-8 in. 1., erect, naked, dark chesnut- 

 brown ; fr. 3-4 in each way, with a narrow linear terminal lobe decurrent 

 down to 2 or 3 pairs of similar lateral ones, and below these two pairs of 

 compound pinnce, the lowest cut down to the base into three principal divisions, 

 each again pinnate, their lowest segm. nearly 2 in. 1., less than 1 lin. br. ; texture 

 coriaceous ; rachis and both surfaces naked ; veins quite hidden ; sori reaching 

 to the apex of the segments. Hk. Sp. 2. p. 210. Brack, t. 13. 



Hab. Sandwich Islands ; discovered by the American Exploring Expedition ; and very 

 fine specimens have since been gathered by Dr. Hillebrand. Although the pagina is so 

 narrow, the veins clearly anastomose. 



Litobrochia, Presl. Habit of Eupteris, veins copiously anastomosing, 

 without free included veinkts. Sp. 60-87. TAB. III. f. 31. h. 



* Integrifoliw. Sp. 60-63. 



60. P. (Lito.) Vieillardi, Metten. ; st. 6-12 in. 1., erect, wiry, naked, chesnut- 

 brown, that of the barren fr. shorter than that of the fertile one, both (in our 

 specimens) with a long linear central lobe, which is 6 in. 1., in the barren one 

 1 in., and in the fertile one f in. br., quite entire, and two smaller lateral ones ; 

 texture coriaceous, both surfaces naked ; veins anastomosing copiously ; sori con- 

 tinuous to the apex of the pinnse. Metten. Fil. Nov. Cat. p. 12. 



