ADDENDA. 
Lastrea montana (i. 172-176). 
Peninsula. —Devonshire : Mudworthy and Marwood, Rev. F. Mules. 
E. Highlands.—Inverness-shire : Dunphail, Miss F. Brown. 
6. furcams (M.). A handsome and distinct form, which has proved quite constant. 
The fronds we have seen are about a foot high; they are apparently but 
slightly dilated at the apex, but the apices of the pinne are uniformly divided 
into a flattish tuft of spreading segments, producing an elegant crested appear- 
ance. It was found in Westmoreland by Mr. Stansfield of Todmorden. 
Lastrea Filix-mas (i. 188-202). 
1. erosa (Clowes). A small form apparently referrible to this, has been sent by Mr. 
Willison of Whitby, under the name of thutoides. 
4. incisa (M.) subvar. deorso-lobata. Devonshire: Marwood, Rev. F. Mules. Surrey : 
near Guildford, 7. M. Inverness-shire: Dunphail, Miss F. Brown. 
4.* incisa recurva (M.). This sub-variety has the primary and secondary divisions 
of the fronds recurved, which gives it a distinct appearance. The upper 
fertile part of the frond is otherwise very like deorso-lobata ; the lower sterile 
parts oblong and toothed as in incisa. It was found near Doncaster in 1857 
by Mr. S. Appleby. 
4,** flexuosa (M.). This is allied to deorso-lobata in its general character, but the 
main rachis is strongly and euriously twisted in a zig-zag way as in the 
zigzag variety of Lady Fern; the secondary rachides are also curved in a 
tortuous manner. It was found near Doncaster by Mr. S. Appleby. 
4.*** biserrata (M.). A subform of the incisa type, with large oblong bluntish 
adnate semi-decurrent pinnules which are crenately lobed, the shallow rounded 
lobes or crenatures being serrated; this produces a distinctly biserrate margin ; 
the upper basal pinnules are deorsely-lobate. It was found at Rossington 
near Doncaster, by Mr. S. Appleby. 
6. elongata (M.). A fine form of this variety in which the pinnules are pointed 
forwards, and consequently somewhat decurrent at the base, has been sent 
under the name of elegans by Mr. W. Willison. It was found near Whitby in 
Yorkshire. 
6.* Wiüllisonii (M.). This was found by Mr. Willison in company with elongata, of 
which itis an elegantly depauperated subvariety. The fronds are large and 
the pinn distant; the pinnules are also distant but irregularly so, the inter- 
vals being sometimes as much as half an inch wide; they are directed forwards 
and strongly decurrent behind, of unequal size and irregularly toothed, some- 
times laciniately depauperated. It is an interesting wild sport. 
9. paleacea (M.). Devonshire: Marwood, Rev. F. Mules. Monmouthshire : Cwm- 
Glyn, near Pont-y-Pool, T. H. Thomas. Dumfries-shire : Moffat, J. Anderson. 
Inverness-shire : Dunphail, Miss F. Brown. 
11.* paleaceo-erosa (M.). A small pinnuled form of the paleacea type, in which the 
pinnules are irregular in size, and erose at the margins. It was found at Cwm- 
Glyn, near Pont-y-Pool, by Mr. Thomas. 
'19. abbreviata (Bab.). Forfarshire : White Water Clova, T. Westcombe. This variety 
and paleacea are of subevergreen habit. 
23.* ramosa (M.). A dwarf branched form of irregular outline. In the frond before 
us, two or three unequal bipinnate branches are produced at the base, and the 

