264 LASTREA FILIX-MAS. 



BiFORMis, Moore. — Accidentally raised from spores by Mr. 

 Moore in the Botanic Gardens, Chelsea. This variety has two 

 kinds of fronds, a portion dwarf and normal, the others 

 much depauperated, the pinnules very small and confluent; 

 pinnaB linear, with distant minute marginal lobes, the larger 

 of which are serrated. I have not yet seen this Fern, but 

 include it with Mr. Moore's description. 



Latipes, Moore. — Found at Kuthin, in Denbighshire, by 

 Mr. T. Pritchard, and in Guernsey by Mr. C. Jackson. Fronds 

 of two kinds — thick and fleshy. A portion two feet in length, 

 ovate, coarse, the lower pinnae not shortened, scarcely bipinnate; 

 pinnules oblong, overlapping, somewhat spiny serrate on the 

 margin, and connected by a narrow wing. The rest of the 

 fronds larger; the pinnules large, distant, profoundly inciso- 

 lobate, and much decurrent, very irregular in size and form. 

 The upper part of the frond fertile. 



Triangularis, Moore. — Found in Holt Wood, near Maid- 

 stone, and in other parts of Kent, by Dr. Allchin. Another 

 of the incisa group, and bears a strong resemblance to Lastrea 

 cristata. Fronds narrow, stiflf, and somewhat erect. Some of 

 the lower pinnae unequally triangular. Pinnules long and 

 adnate, or decurrent, except the basal ones. 



Paleaceo-lobata, 3Ioore. — A handsome form found at 

 Tarbet, Dumbartonshire; Penryn, Cornwall; Jersey, Guernsey, 

 Ardrishiag, Argyleshire, and Glen Lochy, Perthshire. Fronds 

 very large, glaucous beneath, and bright-coloured scales. The 

 distinction consists in the margins of the pinnules being lobate 

 and somewhat undulate. An illustration is unnecessary. 



Paleaceo-crispa, Moore. — Found by Mr. R. Hogg at Bogan 

 Green, Coldingham, Berwickshire. Fronds broad and very 

 leafy; the pinnae and pinnules much crowded. The distinction 

 consists in the undulation of the pinnules, which are crispy 

 from being twisted and curled. Pinnules elongate-oblong, the 

 tips acutely serrated. All the pinnules are connected to the 

 rachis by a narrow wing. 



