ADDENDA. 
Ne, 
[Since our former volume issued from the press, we have received many additional 
varieties, the most important of which are noticed in the following supplementary 
pages. | 
Polypodium vulgare (vol. i. pp. 63-67). 
1. acutum (M.). Buckinghamshire : Great Missenden, R. Heward. 
4. sinuatum (M.). Devonshire: Instow, C. Jackson. 
5.* venosum (M.). A small and subpermanent form, having the fronds minutely 
serrated, but chiefly remarkable for the venose appearance of its surface, the 
veins being surrounded by narrow lines of dark green tissue while the inter- 
vening spaces are yellowish. It was found in Yorkshire by Mr. A. Clapham. 
7. auritum (Willd:). Devonshire: Eggesford, C. Jackson. Westmoreland: Win- 
dermere (serrated), F. J. Jeffery. 
9. cristatum (M.). A form of this with a finely multifid apex has been found in 
Devonshire, at Fremington, by Mr. C. Jackson. 
10. serratum (Willd.). Surrey: Compton, 7. M. 
11.* canariense (M.). See vol. i. p..66. Somersetshire: Nettlecombe, C. Elworthy. 
12.* multifido-cristatum (M.). This is one of the most beautiful forms yet known. 
The largest fronds we have seen are scarcely six inches high, and have the 
lower pinns or segments finely multifid-crisped as in the Crested Male Fern, 
but the apex is several times multifid forming a large spreading head, and the 
branches of the head are multifid-crisped forming little curly tufts of laciniate 
segments. It was found in 1855 by Mr. Henry Parker, on an old wall at 
Hutton, near Weston-super-Mare, Somersetshire. 
13. multiforme (Clowes). Netley Abbey (truncate form), G. B. Wollaston. 
13.* attenuatwm (M.). A fine large lax-fronded form, sometimes as much as sixteen 
- inches long exclusive of the stipes, and eight inches across. The segments are 
distant, dilated at the base on both sides, slightly aurite in front, the margins 
notched with distant shallow serratures, which sometimes become enlarged 
into lobes, when it resembles the less developed states of semilacerum (14) ; the 
chief peculiarity of the variety however is the attenuated apices of the dis- 
tant segments, which become elongately caudate. It was found some years 
since in Guernsey by Dr. Allchin, and proves to be permanent. 
14. semilacerum (Link). Dumfries-shire : Moffat, J. Anderson. Westmoreland : 
Whitbarrow, F. Clowes. : 
Polypodium alpestre (i. 81). 
E. Highlands.—Perthshire : mountains between Glen Lochy and Glen Dochart; 
Craig Challiach. y 
N. Highlands, —Sutherlandshire : Ben More, T. Westcombe. 

