ADDENDA. 351 
In the smaller pinnules the costa bears a sorus medially on its lowest anterior vein, 
so that a row of sori are formed on each side of and near to the principal rib. The 
basal lobes often bear in addition two or three other sori, and are traversed by & 
series of alternate simple veins. 
Pructification occupying the whole back of the frond from the base to the apex. 
Sori prominent distinct, biserial near the costa of the smaller pinnules, and biserial on 
the lobes in the larger ones. Jndusiwm persistent, reniform, obscurely erose-dentate 
on the margin, not glandular. Spore-cases roundish obovate. Spores oblong, granulated. 
This recent addition to our Fern Flora very much resembles in general character 
and aspect those vigorous examples of Z. cristata v. spinulosa which are sometimes 
met with, having the same kind of narrow elongate erect fronds; but in its structural 
characteristics it differs materially from that plant, and agrees much more closely 
with Z. Filix-mas. From L. Filix-mas itself, the incised pyramidal-pinnuled forms 
of which most nearly resemble it, it may be separated by the circumstance that its 
fronds are once more divided, being tripinnate. It appears to have reasonable claim 
to specific rank, although Professor Braun by whom it was first described, is now 
inclined to regard it as a more divided form of the Common Male Fern. 
We have seen native specimens of this Fern from the neighbourhood of Winder- 
mere, where it was found by Mr. F. Clowes and Mr. I. Hudhart. It had previously 
been recorded only as a native of Southern Germany. 
Lastrea spinulosa (i. 210). 
Under the synonym Aspidiwm spinulosum, add. :- Smith, Eng. Fl. 9 ed. iv. 279. 
Lastrea dilatata (i. 229-246). 
Peninsula.—Devonshire : Muddiford, C. Jackson ; Websdale, C. J. ; Bittadon, Rev. 
F. Mules. 
Tyne. —Durham : Darlington, Mrs. Crawford Marley. 
W. Lowlands.—Dumfries-shire : Moffat (various forms), J. Anderson. 
E. Highlands. —Inverness-shire : Dunphail, Miss F. Brown. 
3. collina (M.). Dumfries-shire : Moffat, J. Anderson. Perthshire : Ben Ledi, Mrs. 
Hume Macleod. 
11. micromera (M.). Devonshire: Challacombe, Rev. F. Mules; Marwood, F. M. 
Somersetshire: Nettlecombe, C. Zlworthy. Dumfries-shire: Moffat, J. Anderson. 
12.” grandidens (M.). A neat but vigorous form, having somewhat distant pinne and 
pinnules, but remarkable for the evenly ovate-oblong outline of the pinnules, 
of which the sides curve inwards at the top to form a scarcely acute apex. It 
is further remarkable for the blunt oblong segments into which the pinnules 
are divided quite down to the costa, and for having the few teeth broad 
spreading and remarkably evident, as in collina (3). It has been gathered in 
Kent by the Rev. J. Dix, and by Mr. Jackson at Barnstaple, the Devon plant 
mentioned under deltoidea (i. 240) being referrible here. 
15. valida (M.). Inverness-shire ; Dunphail, Miss F. Brown. 
20.* ramosa nana (M.). A most remarkable dwarf form, only a few inches high, 
the fronds consisting of uneven branch-like pinne, as in Athyrium Filix- 
femina crispum, and these furnished with interruptedly irregular pinnules of 
varied size and form. It has been sent by Messrs. Stansfield. 
23*. crispa (M.). A dark-coloured thick-textured form, somewhat resembling 
validum (15) but having the pinnules very much curled or crisped. It was 
found by Mr. Elworthy in the neighbourhood of Nettlecombe. 

