POLYPODIUM, § IMIEGOPTKUIS. 243 



brown glabrous and scaleless, fronds firm subcoriaceo-mem- 

 branaceous 8-10 inches long 4-5 inches wide ovate subdel- 

 toid partially villous above chiefly on the veins, beneath co- 

 piously so with rather long soft hairs most so on the costas 

 and veins pinnated piiniatitid at the apex, pinnae 2h-3 inches 

 long ^ to nearly 1 inch wide from a rather broad and rounded 

 base oblong-lanceolate obtuse remote pinnatitid, lower ones 

 petioled and deeply lobed halfway down to the costa gra- 

 dually less deeply lolled upward and more elliptical the rest 

 coadunate, lobes or segments rounded very obtuse entire or 

 subsinuato-dentate, rachis villous on the upper half alate by 

 a narrow but very distinct wing uniting as it were the bases 

 of the distant pinutc, veins pinnated subflexuose, veinlets 

 8-10 distant quite free extending to the margin, lowest pairs 

 only soriferous below the middle, sori small very remote and 

 forming an imperfect line or series on the pinna nearer the 

 costa than the margin. 



Hab. Surinam, 2?os^»ia»n. — The four fronds I possess of this Fern are remark- 

 ably uniform in the characters above given. 1 can detect no trace of involucre 

 on the small and unusually distant sori. 



1 72. P. (Phegopteris) rwf/e, Kze. ; " frond lanceolate co- 

 riaceous one-coloured with the veins hairy on both sides 

 pinnato-pirmatifid, pinnse moderately distant alternate crecto- 

 patent slightly curved elongato-lanceolate acuminate ser- 

 rated at the apex deeply pinnatifid, segments oblong subfal- 

 cate obtuse veined, lowest ones abbreviated, sori submarginal 

 numerous minute, costae rachis and longangulate stipes cano- 

 hirsute.'' Kze. in Linncea, xiii. ^j. 133. Phegopteris, Fee. 

 Metten. FiL Hart. Lips. p. S3 (" so)-i medii inter coslu/am et 

 maryinem"). Plwgopt. p. 17- Glaphyropteris, Pr. Also- 

 phila pilosa, Mart.et Gal. FiL Mex. p. 78. t.22 {consequently 

 of this icork, Vol. I. p. 47). 



Hab. Mettenius gives Mexico, Liebold, and Columbia, Moritz. Authentic 

 specimens of these I possess, and others sufiicienily corresponding with them 

 from New Granada, Linden, n. 1010, 502 ; Venezuela, Fendlei-, n. 187 and 197.'; 

 Ecuador, Jameson; Peru, Mathews, n. 975; Galapagos, Wood!; Brazil, Gard- 

 ner ?'(too membranaceous and too glabrous). — This appears to me to be very 

 near some forms of P. decnsmtum, and the only figure quoted (Martens and 

 Galeotli) is as much like the one as the other. Its usually smaller size, more 

 rigid texture, shorter segments to the pinna;, and absence of the rcmarkul)le scale 

 at the base of the pinna;, and the greater degree of hairiness, arc probably the 

 chief distinctions. Yet though 1 do not find a scale on any of my authenticated 

 specimens, I find a scar as if it had been early deciduous. 



173. P. (Phegopteris) de cuss at um, Ij. ; "caudex erect and 



