120 NEPIIRODIUM, § LASTREA. 



101. N. (Lastrea) riyidum, Desv. ; caudex short' stout 

 erect densely paleaceous as arc the tufted stipites which are 

 4-5 inches long, fronds 8 inches to 1-2 feet long oblong 

 acuminate firm-membranaceous erect subrigid glandular be- 

 neath and fragrant bipinnate, pinnte horizontal lower primary 

 ones remote the rest approximate 2-3 inches long from a 

 broad sessile base sometimes an inch broad gradually taper- 

 ing to a point, pinnules sessile subdecurrent oblong strongly 

 inciso-serrate, the serratures very sharp^ those of the basal 

 pinn£e pinnatifid not very deeply, the segments serrated, 

 veinlets mostly forked, sori in two rows between the cos- 

 tule at the margin at length confluent, involucres exactly 

 reniform very convex firm glandular and fringed with glan- 

 dular hairs, main rachis chaffy. — Hook. Brit. Ferns, t. 16. 

 Aspidium, >§?«;. %w. Fi/.;?. 53. Schk. Fil. p. 40. t. 38. Willd. 

 Sp. PL v. p. 265. Hook. Suppl. to Engl. Bot. t. 2724. 

 Hook, et Am. Brit. FL ed. p. 585. Metten. Aspid. p. 56. 

 Lastrea, Pr. Polypod., Hoffm., De Cand. P. fragrans, Vill. 

 — N ox. pallidum; fronds generally larger, pale-green. Hook. 

 Brit. Ferns, I. c. Aspid. pallidum. Link, Fil. Hort. Berol. p. 

 107. Nephrod., Borij, FL Peloponn. p. 67. /. 88 {good). 

 Webb, Phytog. Canar. — Var. Aniericmmm ; fronds twice or 

 thrice larger scarcely at all glandular. Hook. Brit. Ferns, I. c. 

 Aspidium argutum, Kaulf. En. Fil. p. 242. Hook, et Am. 

 Bot. of Beech. Voy. p. 162. 



Hab. South of Germany, Alps of Switzerland and Savoy, and mountainous 

 districts in the west of England and in Ireland. In Asia Minor and the islands 

 of the Mediterranean, it is usually larger and of a paler colour, and becomes the 

 Aspid. pallidum of Link. The American form is again much larger, and seems 

 to be peculiar to California and Sierra Madre, North-west IMexico. — As a species, 

 this has a close affinity with the more narrow-pinnuled forms of the elongatum- 

 var. of F.-mas. (See observations on N. rigidum, in ' British Ferns,' 1. c.) 



102. N. (Lastrea) erythrosorum, Eat. ; " fronds bipinnate 

 ovato-oblong, pinnae subopposite lanceolate a little narrower 

 at the base, pinnules oblong obtuse or truncated serrated, 

 veins forked, sori distant from the margin upon a superior 

 veinlet, involucre reniform intensely red the margin white en- 

 tire, scales of the rachis narrow-linear, of the secondary costae 

 linear from an orbicular base crisped." Eat. (Tab. CCLIIL) 

 — Eat. in Williams and Morroiv'^s PL of Japan, p. 330. 



Hab. Simoda, Japan, C. Wright, Oldham. Tsus-Sima, Gulf of Corea, C. Wilford, 

 n. 759. — This is a very beautiful species, owing to the fine red colour of the involu- 

 cres. In habit it approaches the Aspidium varium, Sw., and as J have described 

 that as having nephrodiaceous involucres, so this has some involucres which ap- 



