44. NEPHRODIUM, EUNEPHEODIUM. 287 



to a winged rachis into small, oblong, or linear, sharply-toothed lobes ; texture 

 coriaceous ; rachises fibrillose ; both surfaces glossy ; sori copious. Hk. Sp. 4. 

 p. 150. 



Hab. New Zealand, Australia (very rare), Mauritius, Bouton.A. well-marked plant. 



151. N. (Last.) denticulatum, Hk. ; st. tufted, 1 ft. or more 1., densely clothecf 

 with linear scales at the base, naked above ; fr. 1-2 ft. 1., 8-12 in. br., deltoid ; 

 lower pinnae much the largest ; lowest pinnL larger than the others, which are 

 lanceolate or subdeltoid, with segm. which are again pinnate, with spathulate or 

 subrhomboidal lobes with spinose teeth ; texture coriaceous ; rachis and both 

 sides naked, glossy ; sori scattered, copious. Hk. Sp. 4. p. 147. A. Klotzschii, 

 Hk. 2nd Cent. t. 23. 



Hab. W. Indies and Guatemala to S. Brazil. There is a very rigid variety (A. di$- 

 , Fe"e) with linear, mucronate alternate divisions. 



152. N. (Last.) davallioides, Baker ; rhizome stout, wide-creeping ; st. strong, 

 1^-2 ft. 1., brownish, naked, the dense fibrillose scales confined to the base ; fr. 

 3-4 ft. 1., 2 ft. or more br., deltoid ; lower pinnae often 1 ft. 1. by nearly as 

 broad ; pinnl. deltoid, with lanceolate or deltoid segm., the lobes of which are 

 again deeply pinnatifid ; all the divisions unequal-sided, the ultimate ones 

 small, sublinear, mucronate ; texture subcoriaceous ; rachis and both sides nearly 

 naked ; sori small, copious ; invol. firm, reniform. Lastrea, Brack, p. 202. 



Hab. Fiji, Tahiti, and Samoa. The alliance of this is with the next species, but it is 

 much more finely cut. 



153. N. (Last.) effmum. Baker ; rhizome short-creeping ; st. 2 ft. 1. or more, 

 polished, slightly scaly below ; fr. 3-4 ft. 1., 2 ft. or more br., 4-5 pinnatifid ; 

 lower pinnce 12-18 in. 1., often 1 ft. br. ; pinnl. close, lanceolate, acuminate ; 

 segm. lanceolate or subdeltoid, unequal-sided, the lower ones cut down to the 

 rachis into oblong, pinnatifid, bluntish lobes, often J in. br. ; texture sub- 

 coriaceous ; rachises usually scaly ; both sides pale-green, glossy, naked ; sori 

 copious, scattered; invol. generally absent. Polyp, divergens, Hk. Sp. 4. 



p. 265. N. amplissimum, Hk. Sp. 4. p. 145. (3, -TV. excultum, Hk. ; fr. often 

 tripinnatifid only, the ult. divisions always broader and less deeply cut. Hk. 

 Sp. 4. p. 149. 



Hab. Cuba and Mexico to Brazil and Peru. P. effusum .and. excultum appear to be 

 less, and P. divergens more divided forms of the same plant. P. dilatatum, Liebm. 

 Hk. Sp. 4. p. 264, does not differ materially. N. macrostegium, Hk. Sp. 4. p. 148, is 

 apparently a coriaceous variety, with firm, distinctly-developed reniform involucres. 

 We have a single specimen of a plant from West Tropical Africa, gathered by Dr. 

 Curror, which may be this species. 



Eunephrodium. Lower veinlets of contiguous groups united. Sp. 154-196. 

 * Fronds ligulate, not cut down to the rachis unless at the very base. Sp. 154-158. 



154. N. Cumingianum, I. Sm. ; st. tufted, slender, naked, 2-4 in. 1. ; fr. 3-4 

 in. L, -^-f in. br., lanceolate-oblong, narrowed gradually at both ends, entire or 

 slightly sinuated ; texture subcoriaceous ; both surfaces naked ; veins pinnate, in 

 groups of 2-3 on a side. Hk. Sp. 4. p. 63. 



Hab. Panama. 



155. N. SMnneri, Hk. ; st. tufted, slender, villose, 2-3 in. 1. ; fr. 6-8 in. L, 

 | 1 in. br., lanceolate-acuminate, terminating abruptly below, with oblong- 

 falcate subentire lobes reaching halfway down in the centre, and often^quite to 

 the rachis at the base ; texture papyraceo-herbaceous ; lower side y especially the 



