44. KEPHRODIUil, § LASTREA. 277 



2-3 in. br. ; secondary and tertiary rachises also zigza,; ; lower pinnl. subdeltoid ; 

 segm. 2-3 lin. br., ovate-rhomboidal or pinnatifid ; both sides naked ; cohiir pale- 

 green ; sort large, "3-4 to the lower segm. near the midrib. — Aspid, Thwaites. 

 Lastrea, Bsddome, Fil. S. Ind. t. 271. 



Hab. Ceylon, G. P. 3858. — Perhaps not distinct from the last, with which it agrees, 

 except in the peculiar zigzag rachises. 



96. N. (Last.) deparioides, Hk. ; St. 1 ft. or more 1., firm, slightly scaly 

 below ; fr. 1^2 ft. 1., 8-10 in. br., oblong-lanceolate ; lower pinnoe 4-6 in. ]., 

 2 in. br., laneeolate, cut down to the racUs below into unequal-sided, stalked, 

 deltoid pinnl. with broad, blunt subquadrangular lower lobes and prominent 

 teeth ; texture herbaceous ; racMs and both surfaces naked ; sori terminal in the 

 teeth, which the convex involucres quite conceal. — Hk. Sp. 4. p. 139. I^l. Ex. 

 t. 3. Diclosodon, Moore. 



Hab. Ceylon and S. India. — Teeth very distinct and sor quite terminal, so the plant 

 resembles Deparia, a character quite unique in the genus. 



97. N. (Last.) Thwaitesii, Baker ; st. 1 ft. or more 1., slender, stramineous, 

 slightly scaly below; fr. 12-18 in. 1., 6-8 in. br., lanceolate-deltoid ; pinnw 

 lanceolate, 3-4 in. 1., 1^ in. br. ; pinnl. distant, subdeltoid, unequal-sided, 

 slightly bluntly lobed below, obliquely truncate at the base on the lower side ; 

 colour pale-green ; texture herbaceous ; rachis and both sides quite naked ; sori 

 small, quite marginal ; inrml. naked. — A. concinnum, Thwaites {rum Mett.). 



Hab. Ceylon. — ^Tery like the last in outline, but quite different in fruit. 



98. N. (Last.) sphcerocarpum, Hk. ; st. 6 in. 1., slender, stramineous, clothed 

 below with a few lanceolate scales ; fr. 12-18 in. 1., 6-8 in. br., ovate-lanceolate ; 

 \avier pinnoe 3-4 in. 1., 2 in. br., lanceolate-deltoid ; pinnl. lanceolate, cut down to 

 the rachis below into small oblong toothed lobes ; texture herbaceous ; rachis 

 stramineous, slightly scaly ; both surfaces naked ; sori mostly solitary at the 

 base of the lobes; invol. large, reniform, membranous. — Hk. Sp. 4. p. 139. 

 Athyrium, FSe. 



Hab. Mexico. — Thinner in texture than N, mexicanum, and the iiruit different. 



99; N. (Last.) athamanticum, Hk. ; St. tufted, stout, stramineous, 1 ft. 1., 

 clothed at the base with large concolorons linear scales ; fr. 1-2 ft. 1., 6-9 in. br., 

 oblong-lanceolate ; pinnoe imbricated, the lower ones 4^6 in. 1., 2-3 in. br., the 

 pinnl. cut down to the rachis below into blunt oblong-rhomboidal lobes ; texture 

 subcoriaceous ; colour pale-green, the stramineous rachis and both sides naked ; 

 veinlets immersed, copiously pinnate in the lower lobes ; sori close to the midrib ; 

 invol. large, persistent. — Hi. Sp. i.p. 125. t. 258. 



Hab. Cape Colony to Natal and Angola. — Most like N. sparsum in texture, but more 

 divided. 



100. N. (Last.) in(BgwiU, Hk. ; st. 1 ft. or more 1., with a dense tuft of 

 reddish-brown lanceolate scales at the base and a few upwards ; fr. 1-2 ft. 1., 

 8-12 in. br., ovate-deltoid ; lower pinnce rather shorter and broader than the 

 next, which are 6-8 in. l.j 2-3 in. br. ; pinnl. lanceolate, cut down nearly to the 

 rachis into oblong spinoso-serrated segm.; texture herbaceous; colour dark- 

 green ; rachises and both surfaces nearly naked ; sori in two rows near the 

 midribs ; invol. firm, naked. — Hk. Sp. 4. p. 125. 



Hab. Cape Colony and Natal. — Intermediate in habit between N. spinvXosum and the 

 large forms of Filix-Tnas. 



101. N. (Last.) Falconeri, Hk. ; st. 1ft. 1., densely clothed throughout with 

 concolorons scales, varying from ovate to subulate ; Jr. 1^2 ft. 1., 8-10 in. br., 



