



CLASS IV. CRYPTOGAMS 



Flowerless and seedless plants; reproduction by spores. 



Family iii. FILICES 



Spores minute, produced in conspicuous spore-cases on the 1., usually on the 

 under-side. 



* DiCKSONiA ANTARCTICA. Tree Fern. 30. E. Trunk covered with matted 

 rootlets. Ls. 2-pinnate, 6 feet, by 2 feet., spreading palm-like from top of stem, 

 crozier-like when opening. Australia and Tasmania. (Fig. 22 D.) 



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