POLYPODIUM VULGARE. 113 



authors;) Cambricum — Willdenow, Bolton, Smith, and Moore, 

 (Jaciniatum of Lamarck;) acutum, hifidwm, ramosum, interr upturn, 

 sinuatum, laciniatum, marginatum, serrulatum, multifidum, 

 auritum, serratum, dentlculatum, ovatum, crenatum, and trun- 

 catum. 



Of these varieties, semilacenwi is an Irish Fern above alluded 

 to; Camhricum, a very beautiful form, originally, I believe, found 

 in Wales; I have a plant procured in a wood near Macclesfield, 

 which does not differ from the form Camhricum. Bijidum is 

 not constant in cultivation; several beautiful plants procured at 

 Matlock, have nearly lost this bifid character since I have had 

 them under pot culture, and others planted in the open Fernery 

 have entirely lost this character. When gathered, they were 

 divided almost to the apex. In a wood near Cromford, Derby- 

 shire, I came upon a patch, half a dozen yards square, of 

 hijidum, in the year 1853. Hamosum is very rare; serrulatum 

 was found in Devonshire, by Mr. WoUaston; denticulatum ueKV 

 Hereford; ovatum in Ireland, by Dr. AUchin; crenatum in Kent, 

 Surrey, and Wales; truncatum in Ireland, by Dr. Allchin. 



For further particulars of these varieties, the reader is referred 

 to the excellent descriptions in Moore's "Nature-printed Ferns 

 of Great Britain." The great length of the "Natural History 

 of Ferns" will not allow more than a passing notice of the 

 varieties. 



My brother, Captain A. S. H. Lowe, found, this spring, 1856, 

 a very large variety, somewhat resembling Semilacerum, on a 

 small island (Carberry Island) in Loch Ree, three miles from 

 Athlone, Ireland, whose fronds exceeded two feet in length. 

 The island is only about six acres in size, and is woody and 

 rocky; in the very centre of it were large patches of this Fern 

 growing upon the rocks. 



My thanks are due for plants and fronds of this Fern, to 

 Mr. Joseph Sidebotham, of Manchester; Mr. R. T. Millett, of 

 Penzance; Mr. W. Allen, of Nottingham; Mr. W, Winstanley, 

 of Chaigeley Manor; Mr. R. J. Grey, St. Thomas', Exeter; Mr. 

 Sim, of Foot's Cray; and to Mr. Norman, of Hull. Also to 

 Sir Oswald Mosley, of Rolleston Hall, for plants of the variety 

 Semilacemm; to Mr. Pearson, of Chilwell, for the variety 

 Serratum; to Mr. Sidebotham, of Manchester, and to Mr. Pearson, 

 of Chilwell, and to Mr. Booker, of Matlock, for the variety 



