ASPIDIUM. 



421 



splendid form may be said to correspond with the better-known variety 

 grandiceps in the section of A. angulare. — Lowe, Our Native Ferns, 

 i., p. 201, fig. 159. 



A. a. argutum — ar-gu'-tum (sharply-notched), Moore. 



A variety with broad, spear-shaped fronds, differing from the normal 

 form through its pinnules (leafits) being narrowed and elongated, and 

 terminating in an acute spine, as also in having long spines to the marginal 

 teeth and a conspicuous auricle (ear) at the base of each pinnule. It has 

 been found wild in Buckinghamshire and in South Devonshire. — Lowe, 

 Our Native Ferns, i., p. 204, fig. 163. 



A. a. crassum — cras'-suin (thick), Moore. 



This variety, found in the neighbourhood of Basingstoke, is distinguished 

 from all others by its short, broad, overlapping pinnules (leafits), which are 

 biserrate (the serratures or teeth themselves serrated or dented again) and 

 of a particularly thick texture. — Lowe, Our Native Ferns, i., p. 199. 



A. a. cristato-gracile — cris-ta'-to-grac'-il-e (slender-crested), Moore. 



A very elegant and beautiful variety, of slenderer habit than the type, 

 and finely crested. It was found wild in the neighbourhood of Exeter. 



A. a. cristatum — cris-ta'-tum (crested), Moore. 



In this pretty variety, found at Barnstaple, the pinna! (leaflets) are 

 pinnate (divided to the midrib) on their lower half, but only pinnatifid 

 (divided half-way to the midrib) in their apical (upper) portion. Their 

 oblong, acute lobes become more confluent as they advance towards the 

 extremity of the frond, which is somewhat widened and crispy. The 

 pinnules (leafits), oblong in form and sharp -pointed, have their base cuneate 

 (wedge-shaped), with a small anterior auricle (ear). — Lowe, Our Native 

 Ferns, i., p. 203. 



A. a. densum — den'-sum (dense), Moore. 



This very handsome, bold, and distinct variety, originally found wild 

 in Devonshire, is remarkable through its lanceolate (spear-shaped) fronds, 



