GYMNOGRAMME. ADIAKTUM. 531 



wholly covered bv very many scales beneath, amongst which 

 the capsules are almost hidden. Old walls and rocks, P IV. 

 X. E. S. I. 



11. GYMNOGRAM'ME Desv. 



[G. leptophyl'la (Desv.) ; fronds pinnate or bipinnate gla- 

 brous, pinnules wedgeshaped deeply lobed. //. F, 1. N. ed. 

 J. 11. 8. 48. Fronds 1 4 in. high. Stipe purple. Pinnae 

 and pinnules alternate Banks. Jersey. [Guernsey.] A. IV.] 



Tribe IV. Adiantece. 



12. BLECH'NUM Linn. Hard Fern. 



1. B. Spicant (With.) ; barren fronds pinnatifid with broadly- 

 linear rather blunt pinnae, fertile frond pinnate with linear acute 

 pinnae. E. B. 1159. H.F.41). B.boreale (Sw.) ed.viii. Lomaria 

 tipicant (Desv.). N. 89. Each lateral vein of the fertile pinnae 

 extends halfway to the edge, than turns at right angles and 

 proceeds up the pinna until it reaches the next vein. Capsules 

 attached in a continuous row to the longitudinal portions of the 

 combined lateral veins. Stony and heaihy places. P. VII. 



E. S, I. 



13. PTE'RIS Linn. Brakes or Bracken. 



1. P. aquilina (L.) ; fronds tripartite, branches bipinnate, pin- 

 nules linear-lanceolate the lower ones usually pinnatitid, seg- 

 ments oblong blunt. E. B. 1679. H t F. 38. J\\ 93. Eronds 

 annual, 1 5 feet high, very much, divided, with spreading 

 branches. Capsules attached to the marginal vein, lying upon 

 a tine membrane and covered by the membranous continuation 

 of the epidermis. Inferior pinnules pinnatitid or sinua.e or 

 entire. Woods and heaths. P. VII. E. S. I. 



14. ADIAN'TUM Linn. Maiden-hair. 



1. A. Ctipillus-Ven'eris (L.) ; frond irregular, branches and 

 roundish-wedgeshaped lobed thin pinnules alternate, lobes of the 

 fertile pinnules terminated by a transversely linear-oblong re- 

 flexed lobe covering several roundish clusters, sterile lobes ser- 

 rate. E. B. 1564. H.F.l. N. 83. Khizome blackish, shaggy. 

 Eronds 6 12 in. high. Stipe and rachis slender, nearly black. 

 Pinnules not jointed to the partial stalks. Damp rocks near 

 .the sea in the south and west. P. V. IX. E. I. 



