Dichrotrichum 



( 295 ) 



Dicksonia 



coloured spikes, the upper being perfect and yellow, 

 the lower neuter and pink or purplish. Propagated 

 by cuttings in a warm case. Loam two-third*, 

 peat and leaf soil one-third, with plenty of sand, 

 will suit. 



Principal Species : 

 cinerea. uutans. jilatycarpa. 



DICHROTRICHUM. 



Stove shrubs (ord. Gesneracete) with evergreen 

 foliage and the habit of yEschynanthus, the stems 

 creeping or climbing on the stems of trees by their 

 roots. Propagation is by cuttings in sand, with 



let this remain for a year. When used, it should be 

 mixed with about a fourth of its bulk of coarse grit. 

 Other Cultural Points. The tree Ferns are only 

 suitable for large houses, but they may be grown 

 either in pots or planted out. Antarctica may be 

 employed out of doors for sub-tropical bedding. 

 Many of the species produce quantities of aerial 

 roots, and these should be syringed twice or thrice 

 daily, as they help the plants considerably. Plenty 

 of water is necessary at all times, and liquid cow 

 manure may be given twice or thrice weekly in 

 summer. If the young fronds are too near the 

 glass, they may be brought down by attaching 





riintii: i:.J Wiiiiit, irii<firort/i, .v.ir 



DICKSONIA ANTARCTICA. 



bottom heat, in a case or covered by a bell-glass. 

 Loam and peat in equal parts, with plenty of sharp 

 sand, in baskets, are suitable. 



Principal Species : 

 ternateum. Jy., crim. 



DICKSONIA. 



Description. A large genus (forty species) of 

 Ferns (t>rd. Filices). Many of them are tree-like, 

 and even under cultivation attain to noble pro- 

 portions. 



Propagation. By spores, sown when ripe in a 

 close, warm frame. 



Soil. Two-thirds of good loam and one-third of 

 leaf soil, with sand, for the smaller-growing species. 

 For the tree Ferns it is advisable to build a stack 

 of alternate layers of loam and cow manure, and 



Dichniiiia (af Cai-anillen, sec Ouriiia). 



weights to them. The chief insect enemies are 

 mealy bug, snowy fly, and tlirips. Fumigation and 

 sponging with soapy water are the remedies. 



Temperature for the stove species, 60 minimum ; 

 for the greenhouse species, 4<J U minimum 45 is a 

 good winter night temperature. 



Principal Species : 



antnrctica, 30' to 35' , fronds 

 . r )'tor2',grh.,anolili'trri: 

 Feni (;/. Billardieri) 

 (see figure). 



aph'folia, 3' to 5', st. (si/us. 

 tenera of gardens and 

 Davallia apiifolia). 



berteroana, 6' to 15', 

 fronds 3' to 5', grh., a 

 tree Fern witli si- mli ] 

 stem and spreadin ghead. 



In v -'itrichu, fronds 3' to 

 .")', st. (XI/H. Blumei). 



I, ntliMimi, fronds 1 1'to 15', 

 st. ; hybrid. 



Menziesii, fronds 3' to 



4'. 



pruinata, much cut. 

 regalis, fronds 3' to "', grh. 

 -'///. Cibotium regale), 

 sellowiana, fronds 6 to 9', 



at., a handsome tree 



Fern, 

 squarrosa, l.V to 20', 



fronds 4' to 6'. 

 \V. ndlanrlii,fromls6'to9', 



a tree Fern with great 



spread of fronds (.11/11. 



spectabilis of gardens). 



