POLYPODIUM, § EUPOLYPODIUM. 213 



are equally pinnate with very remote pinnae) ; Iluataai, on trees, Spruce, n. 5674. 

 — Mettenius is the only person who has (iescribed the P. sporadolepis of Kze. 

 Herb., with the following synonyms : — His var. a is P. Twecdiaaum, Hook., since 

 properly referred by him to P. macrocarpum. His var. ;3 is our P. murorum, 

 and his var. y is P. macrosorum of Foe, Mem. vi. p. 11. t. 8, and conse- 

 quently our P. onustum. The species I here introduce is so natiied by Mr. Eaton, 

 and possibly confirmed by Dr. Mettenius. If so, atid if I am correct in my views 

 of the Ferns referred to that species by Mettenius, the name may be preserved 

 to the plant of Eaton. Hut this again comes so near to some states of P. plcbijum, 

 that, if left to my own choice, I should perhaps have referred it there. Both of 

 tliera are the least scaly of the group. My specimens from Jameson and Spruce 

 quite accord with the P. sporadolepis of Eaton, 1. c. 



114. P. (Eupolypodium) plehejum^ Schlecht. ; caudex stout 

 creeping ferrugineo-squamose, stipites dark-l)rown 3-6 inches 

 long distant margined (in the hving plant) with an obscure 

 decurrent wing, fronds subcarnose coriaceo-membranaceous 

 6 inches to a span long broad-oblong scarcely acuminate 

 naked above, beneath clothed with scattered ovate acuminate 

 appressed subpeltate scales deeply nearly to the rachis pin- 

 natifid, the segments horizontally patent linear-oblong often 

 narrower at the base so as to be subspathulate more or less 

 acute or obtuse subcrenato-serrate, lowest ones free, veins 

 immersed indistinctly visible once or twice forked all free, 

 sori subrotund or oval in two rows halfway between the costa 

 and the margin. — Schlecht. in Linncea, v. p. GOJ. Kze. in 

 Litm<ea, xvui. p. Sid. Liebm. Fit. Mex. p. 46. Hook. Gard. 

 Ferns, t. 48. P. leucostichum, Kze. in Linnaea, xx. p. 380. 

 P. Karwinskianum, Metten. Polyp, p. 6Q. Eat. in Fit. 

 Wright, et Fendl. p. 198. Marginaria, Pr. 



Hab. Mexico, on mountains, alt. 3,000-11,000 feet, Harris, Galeotti, n. 6277, 

 Liebmann. Guatemala, "Vera Paz, Salvyn. New Grenada, Moritz, n. 336, 

 Martwey, n. 1499, Fendler, n. 252. Andes of Quito, Jameson, n. 14, Spruce, n. 

 5239 (large). Peru, Maclean. Trees on Organ Mountains, Brazil, Gardner, n. 

 5920. — P. plehejum is the first name of this Fern published with a description, 

 and was so called from its resemblance to our common Polypody {P. vulgare). 

 It is however, in reality, more nearly allied to P. incanum and its affinities. 



115. P. (Eupolypodium) /M?yMrace2<m, Schlecht. ; "caudex 

 creeping clothed with largish ovato-lanceolate pale-reddish 

 laxly imbricating scales, stipes 1-2 inches long, fronds 4 

 inches to 1 foot long linear (1^ foot long and 5 inches wide 

 and oblong in our specimen) acuminate deeply pinnatipartite 

 (pinnate in the lower half) subcoriaceous on both sides as 

 well as the stipes scaly with whitish (brown in the disk) 

 tender ovate acute elegantly ciliated scales, on the under 

 side most densely imbricated, above sparse acuminato- 



