SCOLOPEXDRIUM VULGARE. 267 



narrow and irron^ular in outline, Lranching several times near 

 the apex, .and becomin<^ wider and more deeply eut. 



DiGiTATUM, Wollaston. (Fig. 648.) — Originally raised from 

 spores by ]\Ir, G. B. Wollaston, of Chiselhurst, and has since 

 been found at South AVcald, Brentwood, Essex, by Miss Lucy 

 Moss. This variety differs from ramosum in all the branches 

 and divisions being flat or in one plane, being hand-shaped. 

 The stipites sometimes branched, and the lamina mostly branched, 

 both near the base, and higher up the costa. The central part 

 of the frond is much branched into a dense tuft of crowded 

 segments, which are much ovei-lapping. The ramifications are 

 compound in an extraordinary degree. For plants my obligations 

 are due to Mr. Edwards, of Nuthall, Nottinghamshire; Mr. 

 Clapham, of Ramsdale Bank, Scarborough; Mr. Cooling, of 

 Derbv: and Mr. C. Monkman, of Malton. The fronds are 

 usually much more branched than the illustration. 



BiMARGiNATUM, Wollasfon. (Fig. 649.) — Found at Rother- 

 ham, in Yorkshire, by Mr. H. Hayling, gardener to the Rev. 

 "VY. Hudson, of St. Catherine's, Regent's Park; also at Brecon, 

 by Mr. J. R. Cobb; at Ulverstone, by Mr. Had win; Oldstead, 

 Mr. C. Monkman; and raised from spores by Mr. C. Elworthy. 

 Fronds varying, some from a quarter to half an inch wide, 

 and six or eight inches long; others three quarters of an inch 

 wide, and from six to nine inches long. Mr. Monkman's plant 

 has fronds eighteen inches in length, and is more like margi- 

 natum, except in the more numerous minute denticulation on 

 the margin. Base truncate, frequently broken up into a few 

 separate lobes; apex usually simple, sometimes mviltifid. The 

 margin laciniate-dentate, or cut into narrow, shallow, truncate 

 lobes, which are bifid or dentate. The surface both above and 

 below is marginate, hence the name himargbiatum. The under 

 marginate line similar to that in maryinatum, but this cuticle 

 on the ujDper surface is irregularly broken into cavities and 

 excrescences. The top of the frond broader and scarcely mar- 

 ginate. A very curious form. The illustration is from Mr. C. 

 Elworthy's plant. 



Marchantioides, Clapham. (Fig. 650.) — Another of Mr. 

 Clapham's singular varieties. Fronds twelve inches in length. 



