1900 SUPPLEMENT—RECENT INTRODUCTIONS, &C. 363 
Ferns—continued. 
sections. Thus, we find that North America supplies us 
with species mostly of a deciduous character, from the 
tiny-growing Pellea Breweri to the gigantic Struthiopteris 
pennsylvanica, Onoclea sensibilis, Adiantum pedatum, 
various Osmunda, Dicksonia punctilobula, and Woodsia 
areolata. It is from Japan that, on the contrary, the 
Ferns—continued. 
Tree-Ferns found in the East and West Indies and 
South America are, with a few exceptions, conspicuous by 
their comparatively slender stems, whereas those, or most 
of those, native of New Zealand, Australia, and Tasmania, 
have stems of a comparatively thick nature, such as those 
of the deservedly-popular Dicksonia antarctica, of the 
Fia. 381. 
greatest part of the hardy and semi-hardy evergreen kinds 
are native. We note among the most popular species 
such general favourites as Cyrtomiwm falcatum and 
C. anomophyllum, Lastrea atrata, L. opaca, Polystichum 
setosum, and P. Tsus-Simense, all of which are not only 
evergreen, but have a peculiarly glossy appearance and 
leathery texture—characters which are shared by very few 
of our native Ferns and by scarcely any other exotic kinds. 
WELL-GROWN FERNS (in House in Mr. H. B. May’s Nursery, Upper Edmonton). 
Silver Tree-Fern, Cyathea dealbata, C. medullaris, and 
a few others. : 
It is worthy of notice that the powers of producing 
crested, depanperated, and other characters peculiar to 
forms of original species, either of a deciduous or of an 
evergreen nature, is much more deyeloped among Ferns 
growing spontaneously in England than among those found 
in any other country, as it is a fact that scarcely a single 
