NEPHROD1UM. 497 



pinnce sessile, ligulate, acuminate, central dilated at base, 3-3^ in. 1., ^-| in. br,, 

 cut down to a narrow wing into close blunt entire lobes 1 lin. br., lower much 

 reduced, deflexed ; texture subcoriaceous ; lower surface finely downy on ribs ; veins 

 raised, distinct, 8-10-jugate; sori minute, supramedial ; inv. fugacious, densely 

 bristly. 



Hab. Banks of the Niger, Barter, 571. An African representative of conterminum. 



51*. N. (Last.) Elwesii, Baker ; st. very short ; racJiis stramineous, slightly 

 downy ; fr. oblong-lanceolate, narrowed from the middle to both ends, bipin- 

 natifid, 15-18 in. 1., 4-5 in. br. ; pinnce sessile, ligulate, central 2-2| in. 1., 4-5 

 lin. br., blunt, cut down to a broad wing into close, entire, blunt spreading lobes 

 J in. br., a space near the tip subentire, the lower growing gradually shorter, 

 much deflexed ; texture moderately firm ; surfaces naked, bright-green ; veins 

 distant, 3-4-jugate ; sori small, marginal ; inv. mmute, glabrous, fugacious. 



Hab. Sikkim, H. J. Elwes, Esq. Habit very like that of concinnum. 



57*. N. (Last.) Harveyi, Baker ; rhizome wide-creeping ; st. %-l ft., grey, 

 slightly scaly at base ; fr. oblong-lanceolate, bipinnatifid, 2-3 ft. 1., -l ft. br. ; 

 pinnce close, linear-ligulate, sessile, lower 6-9 in. 1., ^-J in. br., cut down to a 

 narrow wing into close entire ligulate lobes ; lower pinnce distant and much 

 reduced ; texture membranous ; surfaces bright-green, both like the grey rachis 

 finely downy ; veins 9-10-jugate, distinct; sori marginal; inv. subpersistent. 

 Aspidium, Mett. Kuhn, Linn. 36. p. 115. Lastrea, Carr. Ft. Vit. p. 359. 



Hab. Viti and Samoa. 



63*. N. (Last.) decrescens, Baker ; st. short, grey, naked ; fr. oblong-lanceolate, 

 2-3 ft.l., f-1 ft. br., bipinnatifid ; rachis grey-stramineous, clothed with fine white 

 bristly hairs ; pinnce sessile, with a large prickle-like gland at base, linear-ligu- 

 late, central 5-6 in. 1., f-1 in. br., cut down to a narrow wing into blunt lobes 

 l|-2 lin. br. ; lowest lobes largest ; lower pinnae distant, gradually reduced ; tex- 

 ture moderately thick and firm ; surfaces bright-green, lower pilose on midribs ; 

 veins 12-15-jugate ; sori supramedial ; inv. small, glabrous, ciliated, fugacious. 

 Aspid. KZQ. 



Hab. Andes of New Granada, Lindig, 292, &c. Differs from pachyrackis mainly in 

 position of sori. 



63*. N. (Last.) pterifolium, Baker ; caud. suberect ; scales ovate-lanceolate, 

 ferruginous ; st. | ft. ; fr. oblong-lanceolate, bipinnatifid, 2 ft. 1. ; rachis clothed 

 with soft spreading hairs ; pinnce sessile, ligulate, central 5-6 in. 1., 1 in. br., with 

 a tubercle at the base, lowest abruptly much reduced ; lobes close, blunt, sub- 

 entire ; texture membranous ; surfaces dark-green, the midrib slightly pubescent ; 

 veins 10-15-jugate; sori marginal; inv. distinct, setose. Aspidium, Mett. Kuhn, 

 Linn. 36. p. 110. 



Hab. Andes of New Granada and Bolivia. 



68*. N. (Last.) ClarM, Baker ; short st. and rachis densely clothed with firm 

 spreading linear brown-black scales ;//*. lanceolate, bipinnate, narrowed gradually 

 from the middle to both ends, 1-2 ft. 1., 3-5 in. br. ; pinnce sessile, central 2-2 

 in. 1., ^-f in. br., cut down to rachis below into close truncate entire spreading 

 lobes 1^-2 lin. br., the base subequal or rather dilated, lower reduced very gra- 

 dually to mere auricles ; texture subcoriaceous ; surfaces glabrous, the midribs 

 below scaly ; veins distinct, 5-6-jugate, forked low down ; sori supramedial ; 

 inv. firm, glabrous, persistent. 



Hab. Sikkim, Clarke, Elwes. Intermediate between apiciflorum and Filix mat, but 

 quite different from both in the general outline of the frond. 



3 R 



