

Refugium Botanicum.] [June, 1873. 
TAB, 360. 
Natural Order Fruiczs. 
Sub-order PonypopracE®. 
Genus Nepuropium, Rich. 
Sub-genus Lasrrea, Presl. 
N, rracrans (Richards. Append. Franklin, p. 788). Caudice erecto, 
stipitibus brevibus cspitosis paleis magnis brunneis lanceo- 
latis dense vestitis, frondibus oblanceolatis parvis concinnis 
tripinnatifidis subcoriaceis supra viridibus glabris subtus palli- 
dioribus glandulosis ad costas paleaceis, rachibus stramineis 
antice sulcatis dorso dense paleaceis, pinnis patentibus lanceo- 
latis confertis inferioribus laxioribus sensim minoribus, pin- 
nulis oblongis obtusis liberis pinnatifidis, venis liberis in 
segmentis tertiariis furcatis, soris in segmentis solitariis, invo- 
luecro magno glanduloso.— Hook, et Grev. Ic. Fil. t. 70 ; Hook. 
et Baker, Syn. Vil. 275. 
A native of Siberia from the Caucasus to Kamschatka, and of 
North America as far south as Wisconsin. 
Caudex erect, woody. Stems densely tufted, an inch to three 
inches long, clothed with large bright brown lanceolate acute 
membranous scales. Fronds with a distinct scent like that of 
violets, oblanceolate, four to nine inches long, an inch to two 
inches broad at the middle, narrowed gradually to both ends, 
subcoriaceous in texture, bright green and glabrous above, paler, 
glandular, with abundant adpressed scales, especially on the mid- 
ribs of the pinne below. Main rachis stramineous, deeply 
suleate down the face, abundantly scaly on the under side, 
especially in the lower part. Pinn@ close, lanceolate, blunt, the 
lower laxer and dwindling down gradually to a very small size. 
Pinnules oblong, blunt, pinnatifid, nearly or quite free. Veins 
forked or subpinnate in the tertiary segments, each of which, 
except the uppermost, in the fertile fronds, bears a single sorus, 
which covers all except the tip. Involucres large, glandular, 
distinctly reniform. 
Tas. 860.—1, barren pinnules; 2, fertile pinnules; 8, portion of 
the same: all magnified.—J. G. B. 
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