M2 SCOLOPENDRTUM VULGARE. 



Ireland by Dr. Allchin. Fronds remarkably smooth. Stipes 

 usually very long and almost destitute of scales, the leafy 

 portion comparatively short, seldom exceeding three or four 

 inches, often only an inch, the stipes being from four to ten 

 inches long. Base cordate, apex obtuse, the margin undulated, 

 lobed or contracted, and laciniately or crenately dentate. 

 Fronds irregularly marginate, especially towards the base; at 

 the apex of the costa often an irregular pouch-like development. 

 The costa on the upper surface raised, and broken up into 

 little irregular excurrent points, and forming a muricate ridge, 

 the under side frequently excurrent in the form of a horn. 

 Fertile in the upper part of frond, and the pouch also fertile. 



Irregulare, 3Ioore. (Fig. 608.) — Found in Guernsey and 

 in Devonshire by the late Mr. C. Jackson. Abnormal fronds 

 of eight or ten inches in length, are divided almost to the 

 costa into a series of irregular lobes, which are unequally 

 incised or lobate, having ultimate segments variously shaped. 

 The shallower portions are crenately dentate, the margin sub- 

 undulate. The costa frequently forked or branched. Veins 

 reticulated or disarranged. Sparingly fertile, with irregular sori. 

 A curious subpermanent form, having normal and abnormal 

 fronds. An elegant monstrosity. My thanks are due to the 

 Rev. C. Padley, of Beaconfield, near Plymouth, for fronds. 



Marginatum, Moore. (Fig. 609.) — Found at Nettlecombe 

 by Mr. C. Elworthy; near Sel worthy, Somersetshire, by Mrs. 

 Archer Thompson; at Minehead, Somersetshire, by Mr. W. 

 Bowden; at Ilfracombe and Combe Martin by the Rev. J. M. 

 Chanter; Enys Penryn, Cornwall, by Mr. G. Dawson; at Little- 

 hampton, Sussex, by Mr. G. B. Wollaston; at Stroud, in Glou- 

 cestershire, by Mr. W. M. Cooper; at Grassington, in Wharfedale, 

 Yorkshire, by Mr. A. Clapham; in the Isle of Wight by Mr. 

 R. Bloxam; and in Guernsey by Mr. J. James. Fronds erect, 

 exceeding a foot in length, and about an inch in breadth, the 

 base subtruncate, and the apex attenuated, the margin being 

 irregularly lobed, and dentate. On the under surface is an 

 excurrent membrane within the margin, which is also lobed. 

 The frond has thus a double margin, and both surfaces of the 



