47. FADYENIA. 303 



(in part). — ft O. Welwitsc/m, Baker ; s^oofe weaker, wide-trailing ; scales linear- 

 subulate, squarrose. 



Hab. Natal, Masoaren Isles, Seychelles, Guinea Coast ; /3, Angola, Dr. WehvitscA. — 

 The typical plant is about midway in mode of growth between species 1 and i ; § has 

 the trailing shoots and spreading scales of nodosa, but in other respects agrees with 

 this. 



4. O. nodosa, Presl ; shoots trailing horizontally, densely clothed with linear- 

 subulate spreading scales ; st. scattered, 2-6 in. 1,, often ebeneous, articulated 

 not far from the base ; fr. 6-12 in. 1., 1^-2^ in. br., the apex acuminate, the edge 

 entire ; texture subcoriaceous, both sides glossy ; sori scattered, placed nearly 

 all in the inner half of the frond ; invol. ^ lin. br. — Hh. Sp. 4. p. 167. 



Hab. West Indies and Guiana. — Distinguished from all the other species by its traUing 

 shoots, satiny gloss, and copious irregularly-scattered sori. 



6. 0. WallieMi, Hk. ; shoots trailing horizontally, the scales .flbrillose, 

 spreading, ferruginous ; St. close or scattered, |-2 in. 1., jointed close to the 

 base ; Jr. 6-12 in. 1., |-1J in. br., the apex acuminate ; texture papyraceo- 

 herbaceous or subcoriaceous ; rachis naked or scaly ; both sides naked ; sori in 

 single rows close to the midrib ; invol. J lin. br., ciliated, opening towards the 

 edge.— ^/i. Sp. 4. p. 168. 



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



6. 0. Cuminffii, J. Sm. ; shoots trailing horizontally, clothed with adpressed 

 linear scales ; St. close or scattered, 2-3 in. 1., articulated near the base ; fr. 12-18 

 in. 1., 1-j in. br., narrowed gradually towards both ends ; texture herbaceous ; 

 rachis and both sides slightly pubescent ; sori in two irregular rows near, but 

 not close to, the midrib ; invol. firm, obliciue. — Hk. Sp. 4, p. 155. O. chinensis, 

 Hance. — /3, O. Sibbaldi, Grev. ; texture thinner ; surfaces more hairy ; sori in 

 very irregular wavy lines not so near the midrib. — Ann. Nat. Hist. 2 ser. 1. 

 p. 327. 



Hab. Canton, Assam, Philippines, Neilgherries, and Malaya. — Var. longipes, Hk., 

 from Moulmein, has stems 4-5 in 1., articulated near the middle. /3, Tahiti ; gathered 

 by Sibbald and Bidwell. Probably this occurs in Tropical Australia, as there are speci- 

 mens amongst Leichbardt's plapts. 



Gen. 47. Fadyenia, Hook. 



Sori oblong, in two series near the midrib, terminating free veinlets. Invol. 

 large, subreniform, attached by the centre, ft-ee all round the edge. A single 

 West Indian species. Tab. V. f. 47. 



1. F. proUfera, Hk. ; fr. entire, dimorphous^ the sterile ones f-1 in. br., 

 elongated and rooting at the apex, the fertile one ligulate, narrowed below, 

 6-9 in. 1., J-f in. br. ; veins anastomosing copiously ; texture subcoriaceous ; 

 sori filling up nearly the whole space between midrib and edge. — Hk. Sp. 4. 

 p. 160. Fil. Ex. t. 36. 



Hab. Cuba and Jamaica. 



