366 THE DICTIONARY OF GARDENING, 
Ferns—continued. 
suitable to certain Ferns, such as Davallias, and, with a 
little extra care, these mounds may easily be prevented from 
becoming dry. 
Ferns on Cork. Many are the ways in which virgin 
cork may be used, and often with the greatest advantage ; 
but perhaps the prettiest arrangement with that material 
consists in the making of artificial trees of various 
dimensions, by firmly binding or tying pieces of cork bark 
together, allowing little spaces here and there to be left 
open, so that the hollow parts may be filled with a compost 
suitable to the Ferns used. Many Ferns will grow under 
such conditions; but Davallias, Nephrolepis, and Platy- 
ceriums particularly luxuriate under this treatment. 
Porous Borries. A terra-cotta bottle, made of a 
specially porous material, and usually known as the 
Ferns—continued. 
by an asterisk (*); those succeeding best under ordinary 
greenhouse treatment have no special mark; while those 
which are hardy are indicated by a dagger (t+). 
Tree Ferns. Alsophila australis, A. contaminans*, A. Cooperii, 
A. excelsa, A. Rebecce, A. villosa*. Brainea insignis*. Cyathea 
arborea*, C. dealbata, C. Dregei*, C. insignis*, C. medullaris. 
Dicksonia antarctica, D. Barometz, D. chrysotricha, D. fibrosa, 
D. regalis*, D. Schiedei*, D. squarrosa. Hemitelia Smithii. 
Lomaria cycadoides, L. discolor, L. gibba. 
Gigantic Non-arborescent Ferns. Acrostichum aurewm*, 
A, cervinum, A. scandens*. Adiantum cardiochleanum*, A. tene- 
rum*, A. trapeziforme*. Angiopteris evecta*. Aspidium capense. 
Asplenium longissimum*, A. Nidus*. Blechnwm brasiliense. 
Davallia divaricata*, D. hirta cristata*, D. platyphylla, Dicksonia 
adiantoides, D. culcita, D. davallioides Youngii. Didymochlena 
truncatula*. Marattia alata*, M. Cooperii*, M. elegans. Nephro- 
lepis davallioides and varieties*, N. rufescens tripinnatijida*. 
Fig. 382. POLYPODIUM AUREUM. 
‘* Madeira Fern bottle,’ having been procured, it is covered 
with a layer of clay about an inch thick, which is fastened 
to it and held in position by means of copper wire worked 
across in different directions. Quite tiny secdlings of 
Adiantum Capillus-Veneris are then planted in the clay, 
the bottle is filled with water, which soon percolates 
through to the clay, and hung up. There is no need to 
give water direct to the plants—the bottle only requires 
to be occasionally replenished; by that means a most 
pleasing ball of green foliage is produced, lasting in 
perfection so long as the bottle is not allowed to get dry. 
Ferns FoR Spectan Purposes. The list of Ferns 
which follows is a selection of those best suited to special 
purposes, whether ontdoors or inside. Those kinds which 
thrive best under warm treatment are distinguished 
Polypodium aureum (Fig. 382), P. Heraclewm*, P. sub-auricu- 
latum*, P. verrucosum*. Pteris Drinkwaterii, P. moluccana*, 
P. tremula and varieties. Todea arborea. Woodwardia orientalis 
and radicans. 
Small-growing Ferns. Acrostichwm peltatum*. Actiniopteris 
radiata*. Adiantum jissum, A. Legrandii, A. Luddemannianum, 
A. mundulum, A. Pacottii, A. reniforme. Asplenium Ceteracht, 
A. elegantulum, A. flabellifolium, A. fontanumt, A. monanthe- 
mum, A, Ruta-murariat, A. Trichomanest, A. viviparum*. 
Davallia alpina*, D. parvula*. Fadyena prolifera*. Lomaria 
spicant and varietiest. Nephrodium fragrans, N. sanctum. Pellea 
Brewerii, P. Bridgesii, P. gracilis. Polypodium lycopodioides, 
P. piloselloides, P. rupestre, P. vaccinifolium. Woodsia glabellat, 
W. hyperboreat, W. oreganat, W. scopulinat. 
Ferns with Coloured or Tinted Fronds. Adiantum 
cardiochlena*, A. col; A. cyclosorum*, A. hispidulum, 
A, lunulatum*, 4. macrophytlum and varieties*, A. peruvianum*, 
