POLYSTTCHUM ACULEATUM. 199 



Northamptonshire, jNIonmouthshire, Herefordshire, Staffordshire, 

 Leicestershire, Lincolnshire, Cheshire, Northumberland, and 

 Cumberland. It is also common to both North and South 

 Wales, Scotland, and Ireland. Mr. Thomas Moore has found 

 it in Perthshire and Argyleshire, Mr. D. Moore in Londonderry. 

 It is also recorded as inhabiting Forfar, Argyleshire, Kosshire, 

 Dumfries, Edinburgh, Berwick, Lanark, Kirkcudbright, Isle of 

 Cantyre, Isle of Islay, Antrim, "Wicklow, Sligo, and Clare. 

 The very common occurrence of this form seems to be a 

 strong argument that it is either a distinct species, or merely 

 a certain growth of the normal form. I feel convinced that 

 the latter is the true view to take of the subject. I have 

 removed many plants to my fernery, every one of which have 

 Eventually become Aculeatum true. Mr. Moore, however, 

 remarks that it is not the case with his experience, and 

 therefore I have included it as a variety on so good an 

 authority, much against the advice of several well-known 

 Fern-growers. The Rev. Charles Padley, of BulweU HaU, who 

 has devoted much time to the Polystichums, confirms my 

 experience. It is qmte possible that a few isolated plants may 

 retain the lobate character, and to these this variety must be 

 confined. 



LoBATUM-ACUTUM, Jervts. — Found in Staffordshire, by Mr. 

 Swynfen Jervis, of Darlaston Hall, and in Somersetshire, by 

 Mr. Charles Elworthy, of Nettlecombe. A narrow attenuated 

 form, having the apex narrowed out into a long point; the 

 pinnse almost acuminate, and the segments crowded, small, and 

 very spiny toothed. It is unnecessary to give an illustration. 



Crassum, Moore. — Found near Basingstoke, by Mr. F. Y. 

 Brocas. Distinguished by the very thick, short, broad, 

 overlapping, and biserrate pinnules. An illustration appears 

 unnecessary. I have, however, been unable to get a sight of 

 a frond, although I have made several appKcations to the 

 discoverer. 



MuLTiFiDUM, Woliaston.— Found in Suffolk by Mr. G. B. 

 WoUaston, of Chiselhurst, and in Somersetshire, by Mr. C. 



