DICKSONIA DICTYMIA. 



139 



cut ; segments ovate, toothed at the margin. Stipes and rachis 

 covered with hair-like scales. The erect stem is thick and 

 usually clothed with brown rootlets. 



There are two or three other kinds of Diclcsonia introduced, 

 but at present they are extremely rare, only a specimen or two 

 xisting in some of the largest collections of Ferns. They are 



fe- 



ll r/ 



Fig. 65. Dicksonia antarctica. (Fertile 

 part of frond ; a smaller portion, and a 

 sorus or spore-mass magnified.) 



D. lanata (Woolly), D. fibrosa (Fibrous) ; 

 the plant called sometimes D. squarrosa 

 is generally CyatJiea medullaris. 



DICTYMIA. 



From dictyon, a net : the veins are 

 very much netted. 



DICTYMIA ATTENUATA (Attenuated), 

 Fig. 66. A New-Holland Fern of great 

 beauty. Fronds simple that is, not divided, growing a foot 

 high, thick and leathery, narrowed or attenuated at the base. 



Fig. 66. Dictymia 

 attenuata. (Top 

 of frond natural 



