190 POLYSTICHUM AXGULARE. 



those near the apex of the pinna. — Mr. Wollaston considers that Latum 

 of Moore can only be looked upon as a variety of Prcamorsum, and I 

 have adopted this view, although in some respects it is different. In 

 fronds received from Mr. Elworthy of a plant found near Nettlecombe, I 

 find the length is thirty inches, and width in widest part seven inches. 

 There are above twenty pairs of pinnae, which are five inches in length, 

 narrower and more attenuated, with less-crowded pinnules, which, 

 however, are similar in form to Prriiynorsum. The pinnoB curl upwards 

 at a considerable angle. Found at Barnstaple by the late Mr. C. 

 Jackson; at Ilfracombe by Mr. J. Dodds; and at Nettlecombe by Mr. 

 Charles Elworthy. As there is a marked difference between the Irish 

 and Devon form of Prcemorsum, it seems desirable to distinguish it by 

 the addition of the name of the discoverer. I have therefore called Fig. 

 56 Prcemorsum- Wollastoni. 



116. — Prosmorsum,-Wollastoni, p. 88. The Devon form of Prcemorswin. 

 See Fig. 56. 



116. — Prcemorso-pidchrum, p. 178. 117. — Proh'ferum, p. 80. A form 

 with narrow pinnules has been discovered at Ide by Mr. R. J. Gray. 

 Another form, which is peculiar from the dense mass of long red scales 

 on the rachis, and which is strikingly effective in the lower half of the 

 frond, was found at Monk Leigh, in IN'orfch Devonshire, by the Rev. 

 Charles Padley. Found also at Whitby by Mr. W. Willison, and near 

 Brighton by the Rev. H. Rooper. To all these gentlemen I am indebted 

 for fronds. Dr. Kinaham, in August, 1849, found this plant growing on 

 slate rocks by the side of a stream, which, running through Friarstown 

 House demesne, falls into the Dodder, just above Bohernabreena, County 

 Dublin. 



118. — Prollferum-angustatum, p. 176. 



119. — Proll/erum-Granfordimmm, p. 135. 



120. — Proliferum-Footii, p. 104. Fronds much more triangular than 

 in the ordinary form. Distinctly tripinnate. Pinnules scarcely auricled. 

 Mr. F. J. Foot, of the Ordnance Survey of Ireland, who discovered this 

 Fern, and who has sent me fronds, says that the original plant is a 

 large stout noble-looking Fern, of a very dark green, the rachis very 

 thick and scaly at the base; and, instead of growing upright the fronds 

 spread out horizontally, or are slanting upwards. 



121. — ProUferum-Hardifigii, p. 161. 



122. — Proliferum-Padleyanum, p. 156. 



123. — ProUferum-Wollastoni, p. 128. Found also in ISTorth Devonshire 

 by Mr. Thomas Wray Harding. 



IM.— Pterophoram, p. 99. l25.—Pterofo,i, p. 137. 



126.—Pidchellu}n, p. 161. l^l.—Pidclinim, p. 177. 



128. — Pulclirum-irregidare, p. 175. 129. — Pumilum, p. 115. Found at 

 Nettlecombe by Mr. C. Elworthy, from whom I have received fronds. 



130.— Pyrainklale, p. 178. ISl.—Qaadrdtnm, p. 97. Found 



also at Whitby, in Yorkshire, by Mr. W. Willison, and in South Devon 

 by Misfi Hosoason. 



