ATHYRIUM. ASPLENIUM. 425 



Tribe III. Aspleniea. 



8. ATHYRIUM Roth. Lady-fern. 



1. A. Filix-fazmina (Roth) ; frond lanceolate pinnate or pinna- 

 tifid, pinnae linear, pinnules linear-oblong deeply serrate or pin- 

 natifid. a. A. convexum (Newm.) ; frond bipinnate, pinnules 

 toothed narrowly triangular-lanceolate convex remote not con- 

 nected toothed, upper ones minute confluent, clusters ultimately 

 confluent. N. 245. A. rhceticum Roth. Pinnules long, narrow, 

 with deflexed edges, inclosing the clusters ; their attachment 

 broad ; segments gradually decreasing from the base of pinnule. 

 /3. A. Filix-fcemina (Roth) ; frond bipinnate, pinnules pinna- 

 tifid oblong-lanceolate bluntish flat remote not connected, seg- 

 ments oblong patent with lateral and terminal sharp teeth. N,23/. 

 Frond much divided, dark green. Pinnules much narrowed at 

 their base. Clusters distinct. A. latifolium (Bab.) is apparently 

 only an extreme state of this. y. A. molle (Roth) ; frond pin- 

 nate, pinnules toothed oblong blunt or slightly pointed flat re- 

 mote all connected by wing of midrib or lower ones distinct, 

 segments ovate bidentate lowest with 3 uppermost with 1 tooth. 

 N. 245. Frond scarcely more than pinnate, bright green. Pin- 

 nules attached by a broad decurrent base. Clusters distinct, in 

 2 rows. Sometimes (A. trifidumT&oiht) the pinnules are much 

 less connected, moderately cut, have a narrow attachment, and 

 lobes with more but connivent teeth. Wet shady places. P. 

 VI. VII. 



2. A. fontanum (Presl) ; frond linear-lanceolate bipinnate, 

 pinnae oblong-ovate, pinnules obovate-cuneate with few spinose- 

 mucronate teeth. E. B. 2024. Fronds about 4 in. long. This 

 plant does not associate well with the genus. Formerly on 

 Amersham church, Bucks. Above Wybourn, Westmoreland, 

 Hudson. Between Tan y Bwlch and Tremadoc, Merionethshire. 

 Ashford, Hants. P. VI. IX. E. 



9. ASPLENIUM Linn. Spleenwort. - 



* Ultimate subdivisions with a distinct midvein. 

 ASPLENIUM Newm. 



1. A. lanceolatum (Huds.); fronds lanceolate bipinnate, pin- 

 nules ovate deeply and sharply toothed or lobed, clusters short 

 nearly marginal. E. B. 240. N. 249. Fronds sometimes nearly 

 linear and simply pinnate, always narrowed at the base. Clus- 

 ters oblong, ultimately rather confluent into roundish masses. 

 Rocks and walls, rather rare. P. VI. IX. E. I. 



2.? A. acutum (Bory); fronds long -triangular repeatedly di- 



