84 ENGLISH BOTANY. 



margin. Spores finely mnricate, with very numerous small acute 

 tubercles. No barren fronds unlike the fertile ones. 



Yar. a. genuina. 



Rachis and under side of lamina sparingly glandular or nearly 

 without glands ; scales brown with a dark central stripe or blotch. 

 Lamina firm, lanceolate-ovate or oblong-ovate, tripinnate or bipinnate, 

 with the pinnules pinnatipartite ; lowest pinnae unequal-sided from 

 the greater development of the 1st and 2nd pinnules on the lower 

 side of the secondary rachis. Sori large. 



Yar. /3. tanaceti [folia. Moore. 



Polystichuin tanacetifolium, DC. Fl. Fr. Vol. II. p. 562 ; according to a specimen from 



Professor Fee, Moure. 



Rachis and under side of lamina sparingly glandular or nearly 

 without glands (rarely very glandular) ; scales lanceolate, brown 

 with a dark central stripe or blotch. Lamina rather thin, triangular- 

 -ovate or ovate, tripinnate or almost quadripinnate, with the 

 ultimate pinnules pinnatipartite ; lowest pinnae unequal-sided from 

 the great development of the 1st and 2nd pinnules on the lower side 

 of the secondary rachis. Sori small. 



Yar. y. dumetorum. Moore. 



Lastrea multiflora, var. nana, Neicm. Hist. Brit. Ferns, ed. ii. p. 222. 



Aspidium dumetorum, Sm. Eng. Fl. Vol. IV. p. 281 (vide H. C. Watson, Compend. Cyb. 



Brit. Part. III. p. 456). 

 Lophodium nanum, Neicm. Hist. Brit. Ferns, ed. iii. p. 153. 



Rachis and under side of lamina sparingly glandular, or nearly 

 without glands ; scales brown with a dark central stripe or blotch. 

 Lamina firm, oblong-ovate, bipinnate, with the pinnules pinnati- 

 partite ; lowest pinnae somewhat unequal-sided from the rather 

 greater development of the 1st and 2nd pinnules on the lower side 

 of the secondary rachis. Sori small. 



Yar. 8. collina. Bab. 



Lophodium collinum, Neicm. Phyt. 1851, App. xviii. ; and Hist. Brit. Ferns, ed. iii. 



p. 141. 



Rachis and under side of lamina thickly sprinkled with stalked 

 glands ; scales brown, with a dark central stripe or blotch. Lamina 



