POLYSTiniUM ANGUI.ARE. 81 



divided, and conspicuously stalked; the segments are occasionally 

 perfectly and widely divided, so as to form a tripinnate frond. 

 The former variety is still more singular, having exceedingly 

 narrow, acute pinnides. 



Both these varieties are viviparous in the axils of the lower 

 pinns, and occasionally in the axils of the pinnules, and from 

 this cause very easily propagated, and hecome widely spread 

 in collections. Both varieties are more distinctly stalked than 

 I in the normal forms of Polystichum angulare. I am indebted 

 to Messrs. Veitch, of the Exotic Nurseries, Chelsea, and to 

 Mr. Monkman, of Maltou, and ]Mr. Stansfield, of Todmorden, 

 for plants of this variety. 



Cristatum, Moore. (Plate XVI.) — An exceedingly beautiful 

 Fern, resembling in its general features the lovely crested 

 varieties of Lastrea filix-mas and Athyrium Jilix-foemina. It 

 was first discovered near Bristol by Mr. HiUman, a working 

 collector of Ferns, who travels throughout the British Isles in 

 pursuit of Ferns, walking from place to place, with a huge 

 basket slung on his back. Mr. Hillman disposed of his plant 

 to Messrs. Garaway, ^Mayes, and Co. Subsequently it has been 

 found in Devonshire by the Rev. T. M. Chanter, and by Mr. 

 WoUaston; and again in Somersetsliire by Mr. Elworthy. The 

 latter gentleman found two varieties, both well-developed forms, 

 one of which is now in the possession of Mr. Veitch, of 

 Chelsea. It has been found in various degrees of development. 

 In general outline it closely resembles the normal form, but 

 the apex of the frond, and the apices of the pinnse branch 

 out into multifid curly tufts, those of the pinnae being mucli 

 less developed than those of the frond. My thanks are due 

 to Mr. Monkman, of Malton, for plants; and to Messrs. Sim, 

 of Foot's Cray, Stansfield, of Todmorden, and Mr. Wollaston, 

 of Chisselhurst, for fronds. 



DissiMiLE, Moore. (Fig. 49.) — A singular Fern, found in 

 Kent by Mrs. Delves. It in some degree resembles the variety 

 Intermedium in the more perfect parts of the fronds, it is, how- 

 ever, constantly here and there more or less depauperated, and 

 where depauperated, the pinnae become irregularly deformed, 

 truncated, suppressed or pinnuloid, whilst the pinnules are also 



