44. NEPIIKODIUM, § LASTREA. 277 



2-3 in. 1)1'. ; soconJary and tertiary racliises also zi:4za'4 ; lower />?«h^. subdeltoid ; 

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

 green ; sori large, 3-4 to the lower segm. near the midril). — Aspid. ThwaUcs. 

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



Hab. Ceylon, C. P. 385S. — Perhaps not distiuct from the last, with which it agrees, 

 except in the peculiar zigzag rachises. 



96. N. (Last.) drparioides, Ilk.; st. 1 ft. or more 1., firm, slightly scaly 

 below ; //•. 1^-2 ft. 1., ii-lO in. br., oblong-lanceolate ; lower pimue 4-G in. 1., 

 2 in. br., lanceolate, cut down to the rachis below into unequal-sided, stalked, 

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

 teeth ; texture herbaceous ; rachis and both surfaces naked ; sori termi.nal in the 

 teeth, which the convex involucres quite conceal. — Ilk. Sp. 4. p. 139. Fil. Ex. 

 t. 3. Diclosodon, Moore. 



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

 resembles ^epaWa, a character quite uni(iue 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; ;>?««(« 

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

 slightl}' bluntly lobed below, obliquely truncate at the base on tlie lower side ; 

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

 small, quite marginal ; invol. naked. — A. concinnum, Thwaites {jion Meit.). 



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



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

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

 low Qv 2»>ina; 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 ; sot'i mostly solitary at the 

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

 Athyrium, Fee, 



Hab. Mexico. — Tliinner in texture than N. mcxicanum, and the fruit different. 



9CV. N. (Last.) athamantictan, Ilk. ; st. tufted, stout, stramineous, 1 ft. I., 

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

 oblong-lanceolate; piiince 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. — Hk. Sp. 4. p. 125. t. 258. 



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

 divided. 



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

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

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

 next, which are 6-8 in. 1., 2-3 in. br. ; pinnl. lanceolate, cut down nearly to the 

 rachis into oblong spinoso-serrated scffm.; 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 aud Natal. — Intermediate in habit between N. sj^inidosum and the 

 large forms of Filix-mas. 



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

 concolorous scales, varying from ovate to subulate ', fr. H-2 ft. 1., 8-10 in. br., 



