16 



POPULAR GARDEN BOTANY. 



vidgare, Phegopteris, and Bryopteris. Several hardy species 

 are brought from America; as Scotderi, Virginianum, in- 

 canum, and hexagonopterum ; from Madeira, as drepanum, 

 but these will all flourish in a damp greenhouse. P. lineare, 

 from Japan, and Australis, from New South Wales, require 

 the greenhouse altogether. 



ASPIDIUM. (Shield Fern.) 



Gen. Cliar. (Crgptogamia Filices.) Sori roundish, scattered ; in- 

 dusium solitary, orbicular, fixed by the centre, or at the side, 

 making it kidney-shaped. 



Named from the indusia being shield-shaped, from the 

 Greek for luckier. The English Ferns of this genus are 

 irriguiim, diimetorum, dilatatum, cristatum,, dentatum, etc. 

 America yields for growth in this country a few, as cicuta- 

 rium, hulbiferufn, atomarium, etc. Halleri and Rhceticum 

 are from Switzerland ; alpinum and montanum are from the 

 South of Europe, and cemulum from Madeira. These are all 

 tolerably hardy, but are better for the shelter of the green- 

 house, and other species of the genus require stove-heat. 

 This is an extremely pretty tribe of Ferns. 



