214 POLYPODIUM, § EUPOLYPODIUM. 



setose and long ciliated, segments numerous 6 lines long 1^ 

 line wide (in our specimen S inches long j of an inch wide) 

 at the base on each side especially above manifestly dilated 

 and confluent linear-oblong (gradually attenuated) rather ob- 

 tuse, veins immersed of Eupteins (free), sori (partly) con- 

 cealed by the scales submarginal (halfway between the cos- 

 tule and the margin) extending from the base to the apex 

 of the segments 8-12 on each side the costa/' Metten. — 

 Schlecht. et Cham, in Linnoia, v. p. 6O7. Metteii. Polypod. p. 

 68. Liebm. Fil. Mex. p. SJ. 



Hab. Mexico, Schiede and Deppe. Mira(3or, Liebmann, in Herb, iiostr. — I pos- 

 sess a very fine specimen of the frond of this from Liebmann, with a portion of the 

 very stout stipes, and I can verify by it the correctness of the greater part of 

 Mettenius's character. The chief differences are in tlie dimensions ; mine mea- 

 sures more than I-3- foot (19 inches) in length, and the segments are large in pro- 

 portion ; the rachis is very stout. Indeed, it exhibits the longest fronds of any of 

 this group, and is stout in proportion. 



116. P. (Eupolypodium) Madrense,J. Sm.; caudex stout 

 creeping tortuous paleaceous with copious crisped ferruginous 

 scales, stipites scattered 2|-4 inches long fuscous paleaceous 

 with subulate scales, fronds subcoriaceous (very yellow when 

 dry) 3-4 inches long 1-1 ^ inch broad oblong-ovate deeply 

 nearly to the rachis pinnatifid naked above copiously scaly 

 beneath with appressed ovate subferruginous scales dark in 

 the disk, segments horizontal linear-oblong obtuse with a 

 thickened margin, veins immersed twice forked free, sori 

 copious approximate on the segments in two rows one 

 on each side the costa, rachis dark-brown paleaceous. — J. 

 Sm. in Seem. Bot. of the Herald, p. 33 §. /. 73 [figure ex- 

 cellent) . 



Hab. Sierra Madre, North-west Mexico, Seemann. — This clearly belongs to the 

 same group of Polypodium as P. incanum and its allies, and is remarkable for its 

 peculiarly yellow colour when dry and the thickened margin of the segments. 



117. P- (Eupolypodium) SHnneri, Hook.; caudex long 

 creeping thickness of a crow-quill paleaceous with ferrugi- 

 nous ovate rather lax erose scales, stipites furfuraceous with 

 appressed scales 1^-2 inches long distant, fronds subcoriaceo- 

 membranaceous rather flaccid subfalcate 6 inches to a span 

 long 1| to nearly 2 inches wide pinnate nearly to the apex 

 linear-oblong* acuminate and subcaudate, on both sides co- 

 piously clothed with appressed pale-brown ovate acuminated 

 beautifully ciliated scales darker-brown in the centre, seg- 

 ments numerous scarcely an inch long if of a line wide ho- 



