49. JAMESONIA. 369 



386. P. (Phym.) Lehmanni, Mett. ; rhizome woody, wide-creeping, the scales 

 long, rigid, fibrillose, yellowish-brown ; st. 6-9 in. 1., firm, erect, naked ; fr. 

 1-2 ft. I,, 8-10 in. br. ; pinnce in distant pairs, 4-5 in. 1., ^-f in. br., the apex 

 acuminate, the edge entire or slightly repand, the base rounded ; texture sub- 

 coriaceous ; rachis and both sides naked ; main veins distinct to the edge, with two 

 rows of sori 3-4 deep between them. Mett. Polyp, p. 117. 



Hab. Burmah and Darjeeling, Griffith. 



387. P. (Phym.) himalayense, Hk. ; rhizome woody, wide-creeping, the scales 

 linear, squarrose, bright-brown ; st. 1 ft. or more 1., firm, glossy ; fr. 1-2 ft. 1., 

 8-12 in. br., the pinnae in pairs 1-2 in. apart, 4-8 in. 1., 1^-2 in. br., the point 

 acuminate, the edge scariose, wavy, the base rounded or even cordate ; texture 

 subcoriaceous ; under surface finely pubescent ; main veins very distinct ; areolce 

 fine, close, with copious free veinlets ; sori in 1-2 rows of 3-4 each between the 

 main veins. Hk.Sp. 5. p. 91. P. venustum, Wall. 



Hab. N. India, up to 7,500 ft. Mettenius unites this with P. juglandifolium, but the 

 pinnae are much broader, with prominent veins and a distinct scariose wavy edge. 



388. P. (Phym.) leiorhizon, Wall. ; rhizome very thick, clothed with ovate 

 adpressed peltate scales ; st. 1-2 ft. 1., firm, erect ; fr. 2-4 ft. 1., 1-2 ft. br. ; 

 pinnce narrowed at the base, the lower ones stalked, 6-12 in. 1., |-1^ in. br., the 

 apex acuminate, the edge entire ; texture subcoriaceous, surfaces naked ; areolce 

 fine, uniform, with copious free veinlets ; sori slightly immersed, in a row near 

 the midrib on each side. Hk, Sp. 5. p. 91. Fil. Ex. t. 25. 



Hab. N. India, up to 5-7,000 ft. 



389. P. (Phym.) albo-squamatum, Blume ; rhizome woody, the scales long 

 (sometimes 1 in. L), dense, fibrillose, dark-brown ; st. 6-12 in. 1., firm, erect, 

 glossy ; fr. sometimes simple, usually pinnate, 1-2 ft. 1., 1 ft. or more br., with 

 several distant erecto-patent pinnce on each side, which are 6-10 in. L, |-| in. 

 br., the apex much acuminated, the edge slightly repand towards the point, the 

 base narrowed, the lower ones stalked ; texture subcoriaceous ; upper surface 

 with small white dots at the edge or all over ; main veins usually indistinct ; 

 sori in a single row midway between the midrib and edge. Hk. Sp. 5. p. 92. 

 G. F. t. 47. 



Hab. Malay Isles and Philippines. P. varians, Blume, is a form with narrow pinnae 

 and more distinct main veins. 



TRIBE 12. GRAMMITIDE^B. 



Sori on the back of the lobes, more than twice as long as broad, usually linear. 

 GEN. 49-59. 



GEN. 49. JAMESONIA, Hk. Sf Gr. 



Sori oblong, placed on the flabellate veins on the back of the pinnce remote 

 from the edge. A single Andine species, placed by Mettenius in Gymnogramme. 

 TAB. 6. /. 49. 



1. J. imbricata y H. & G. ; rhizome woody, creeping, black, tortuose ; st. wiry, 

 ebeneous, slender, 3-4 in. 1. ; fr. 6-18 in. 1., 2-3 lin. br., simply pinnate ; pinnce 

 close, roundish, often spreading horizontally, the edge much incurved ; texture 

 coriaceous ; rachis and under surface slightly villose. Ic. t. 178. /3, J. canescens, 

 Kze., habit stouter, the long, silky, yellowish-brown hairs of the upper part of 

 the frond often so dense that they quite hide the pinnse. -y, J. verticalis, Kze. ; 

 st. 1 ft. 1., rigid, wiry ; fr. 6-9 in. 1., f in. br. ; pinnce oblong-deltoid, 3 lin. 1., 



3 A 



