FERNS AND LYCOPODS 



389 



Adiantum California 

 Courtesy Henry A. Dreer, Inc., Philadelphia, Pa. 



the fernery. For decorative purposes A. cuneatum is more exten- 

 sively grown than any other species. There are several well marked 

 forms. A. c. Croweanum has very large fronds. A. gracillimum 

 has the segments much smaller than in most species. A. c. mun- 

 dulum is a dwarf garden form, well suited for using in fern dishes. 

 A. c. variegatum has the pinnules faintly marked with creamy white. 

 A. hispidulum (pubescens) is a species much used in a young state, 

 as it can be got up in quantity very readily. 



Plants in 2- and 3-inch pots raised from spores have a very differ- 

 ent appearance from those which have reached the adult stage. 

 A. caudatiim and A. lunulatum are well suited for planting in hang- 

 ing baskets. Young plants are produced at the ends of the fronds, 

 and when planted out among rocks in a greenhouse they soon cover 

 a large space. A. Capillns -Veneris is one of the hardiest of the 

 genus, but it has a very wide geographical distribution. It is the 

 most useful of all ferns for growing on damp greenhouse walls. 



