628 



THE BOOK OF CHOICE FERNS. 



reach nearly to the midrib and edge. — Hooker, Species Filicum, hi., p. 109. 

 Nicholson, Dictionary of Gardening, i., p. 133. Beddome, Ferns of Southern 

 India, t. 128. 



A. (Euasplenium) Petrarchas — Eu-as-ple' -ni-um : Pet-rarch/-a3 

 (Petrarch's), Be Candolle. 

 This little gem, native of the South of France, Spain, and Italy, 

 succeeds best when cultivated in the cold greenhouse. It is readily distin- 

 guished from A. Trichomanes by the 

 glandular character of its fronds, 4in. 

 to 6in. long, and by their more deeply- 

 cut leaflets of a pale green Colour. 

 The sori (spore masses), oblong in shape 

 and very short, are disposed from four 

 to six on each side of the midrib. — 

 Hooker, Species Filicum, hi., p, 138. 

 Nicholson, Dictionary of Gardening, 

 i., p. 133. Lowe, Ferns British and 

 Exotic, v., t. 38. 



A. (Euasplenium) pinnatifidum 



— Eu-as-ple'-ni-um ; pin-na-tif'-id-um 

 (pinnately-cleft), Nuttall. 



This is essentially a greenhouse 

 species, native of North America, having 

 been first discovered in crevices of 

 rocks along the Schuylkill River, near 

 Philadelphia ; then along the Wissa- 

 hickon Creek, in the same vicinity ; on 



Fig. 121. Asplenium pinmtiftdum moigt ^ of sandgtone in the Cum . 



(i nat. size). 



berland Mountains, East Tennessee, also 

 in Alabama and at Mine-la-Motte, Southern Missouri. Its singular fronds, 

 of a thin, papery texture, borne on stipites (stalks) 2in. to 4in. long, brown, 

 shining at the base but green higher up, and slightly chaify when young, are 

 from 3in. to 6in. long, ljin. broad at the base, from which the general 



