386 Iberbaceous plants, 



leaf branched and cristed ; Cambricum, pinnae with finely 

 and deeply cut edges. These have developed from plants 

 growing in rich soil and should not be planted on rocks. 



Beech Fern (P. Phegopteris). A very tender and deli- 

 cate plant. Leaves six inches long, triangular, pinnate, 

 with the lower pair of pinnae long and deeply pinnatifid. 

 Color pale green. Common in shade at the roots of 

 trees mostly in rich soil. Fine for shady places. Oak 

 Fern (P. Dryopteris), a similar form with more divided 

 fronds. 



Maidenhair Fern, Adiantum pedatum. The most beau- 

 tiful of American ferns, grows in rich, shady woods, fre- 

 quently among the debris of eroded rocks. Leaves pedate, 

 pinnules very numerous. Height one or two feet, forming 

 masses of very light and elegant foliage. Fine for shady 

 positions in a rockery or among trees and shrubs ; thrives 

 best in a sandy loam mixed with leaf -mold. A. Capillm- 

 Veneris may be grown in moist and shady rockeries planted 

 in deep fissures. 



Eagle Fern, Pteris aquilina. A large, robust-growing 

 fern common in barren fields and light, open woods. 

 Fronds almost triangular, lower pinnae stalked and pinnate, 

 upper ones pinnately parted or pinnatifid; blade from a 

 foot to three feet long, more than half as broad ; leaf -stalk 

 slender, one foot high, brown. This is an elegant species 

 for naturalizing. 



Lomaria. Of this genus there are a few beautiful 

 evergreen species, smaller or more slender than the common 

 polypody. They are exceptionally fine plants for rockeries. 

 L. alpina has fronds from four to eight inches long by 



