66 WOODSIA HYPERBOREA. 



Woodsia — After Woods, a well-known Botanist. Hyperhorea — 



Kortliern. 



The Round-leaved Woodsia is a very rare indigenous species, 

 growing in crevices of rocks. 



A deciduous half-hardy Fern in cultivation. 



Found only on Snowdon^ CrieiF, Ben Lawers, Clova Moun- 

 tains, Mountains of Perthshire, Ben Chonzie, Craig Challiach, 

 Maeldun Crosk, Glen Fiadh, and on Moffat Hills. 



It is a native of Wales, Scotland, Norway, Sweden, Russia, 

 Lapland, Switzerland, Hungary, Germany, France, Spain, 

 Siberia, Kalu, (in the Punjab,) Himalaya, Mountains of 

 Massachusetts at Saskatchawan, Rocky Mountains, Great Bear 

 Lake, and Davis' Straits. 



Introduced into the Royal Gardens, Kew, in the year 1793. 



Fronds membranaceous, narrow-lanceolate, pinnate, and slightly 

 scaly beneath; pinnae triangular and pinnatifid; base in a slight 

 degree cordate, with rounded-obtuse segments; pinnse usually 

 alternate. Sori circular, medial, and eventually confluent. 



Indusium deeply laciniated, and ending in capillary-articulated 

 segments. 



Stipes articulated near the centre. 



Fronds adherent to a somewhat tufted rhizoma. 



Length of frond from two to six inches; colour dull green. 



Stipes and rachis slightly hairy. Stipes pale reddish brown 

 in colour. 



Pinnse below distant, above crowded. 



Veins branched, terminating within the margin in a slightly 

 thickened apex. 



To cultivate Woodsia ilvensis and W. hyperhorea , it is 

 requisite to give them a damp cool atmosphere, such as a 

 cold frame with a north aspect; drain the pots well and do 

 not over-pot. Small pieces of freestone round the plants is an 

 advantage. Although the plants delight in a damp atmosphere 

 improper drainage and sunshine are alike destructive to them. 



For plants my thanks are due to Mr. G. Norman, of Hull, 

 and Mr. Sim, of Foot's Cray; and for fronds to Professor 

 Balfour, of Edinburgh, and to Mr. Joseph Sidebotham, of 

 Manchester. 



The illustration is from Professor Balfour's fronds. MB 



I 



