■M
TAB. XXX.
A S P L E N IU M . Presl.
A s p l e n h Sp. L . et Auct. D a k e a . Sm. C æ n o p t e r i s . Bernh.
Sori lineares, elongati. Indusium elongatum e vena la te ra lite r ortum ducens,
planiusculnm, margine superiore libero— Rhizoma subglobosum. Frondes fa s c i-
cidatoe, simplices lobatæ aut varie divisæ. Venæ pinnatæ, simplices aut imi-bifur-
catoe, venulis paralleloe, aut apice libero punctiformi acutove terminatæ, aut areu
transverso conjunctoe {ut in A. Nidus).
Asplénium Muta muraria. L .
O u r T a b . V I . r e p r e s e n ts an A s p lé n ium w ith v e ry n a rrow s e gm e n ts, e ach s e gm e n t b e a r in
g o n ly o n e so ru s , w h ich th u s a p p e a r s to o p en o u tw a rd ly , t l.a t is, tow a rd s th e m a rg in ,
{D a rea , Sm., Cænopteris, B e r n h .) . T h e w e ll k n ow n A sp i. R u ta m u ra r ia , n ow r e p re s e n te d ,’
e x h ib its th e m o re u su a l c h a ra c te r o f th e g e n u s , w h ile, on th e o th e r h a n d , th e v e n a tio n is
q u ite o b scu re , a n d s c a rc e ly to b e se en b u t b y d isse c tio n o r a f t e r m a c e ra tio n .
Pig. 1. A small plant o i Asp lén ium R u ta m u ra r ia ; magn. 2 d i a m . - / 2. Under side of a pinna
with scarcely ripe sori ; m. 10 d i a m . - / 8. Another pinna, more advanced ; m. 10 d i am ,- / . 4. Ver!
deal section of a sorus ; m. 20 d i a m . - / S. Sporangia in a young state ; m. 100 d i am .- / . 6. Sporangia
in a ripe stale ; do.—f . 7. Sporules ; m. 200 diam.
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