I/ig'hain : ?Cew and Rare Hepatics and Mosses. 173 



In addition to the above description, three of the above 

 gatherings that I have seen are of a glossy red colour, which is 

 probably a constant feature of the plant ; also, I find the cells 

 smaller than in M. emarginata, and decreasing in size from the 

 middle of the leaf to the margin. A comparison of the leaves 

 of M. Pearsoni (Figs. 6 and 7) and of M. emarginata (Figs. 8 

 and 9) will show the different leaf structure. 



Marsupella aquatica (Lindenb.) Schiffn. This hepatic I 

 also found at the White Force, Teesdale, on 20th August 1897, 

 and again on 5th June 1898. It is widespread in Scotland, and 

 is recorded from Ireland. 



Nardia hyalina (Lyell) Carr. var. colorato Nees. This 

 beautiful hepatic grows on the moor on the north side of 

 Sedling Burn, Weardale, where I found it on 29th July 1898. 

 It has also been recorded from V.C. 85, Fife-with-Kinross. 



Lophocolea heterophylla (Schrad.) Dum. var. laxior l^ees 

 grow\s on a hedgebank at Burgh wallis, near Doncaster, where 

 I gathered it on 16th December 1902. It is distinct in its long" 

 creeping stems and distant leaves. 



Webera proligera Bryhn. — This moss is plentiful on the 

 sides of a sandstone cavern in Shipley Glen, Bradford. Tlie 

 specimen was abundantly provided with its characteristic 

 gemmas, resembling ' an empty kid glove, somewhat twisted, 

 with the fingers sticking out in all directions.' 



Jungermania in f lata var. compacta Nees. — This hepatic, 

 the type of which is so frequent in bogs, I found strangely 

 mounted on one of the large masses of millstone grit in Shipley 

 Glen, Bradford, 13th February 1905. It is a very distinct variety 

 both in its compact habit with upright stems and in the shape 

 and cell structure of the leaf. Verified by S. M. Macvicar. 



Aplozia lurida Dmrt. — This rare hepatic, with perianths, 

 I found abundantly on a wet sloping bank at Marske Mill, 

 Saltburn, Vice-county 62, on 22nd August 1900, but have only 

 recently examined it and determined it. ^Ir. Macvicar confirms 

 the record. 



Teratology in Mosses. — This subject has received very 

 scant attention from bryologists, which is my reason for men- 

 tioning the following remarkable case : — On 7th May 1900, 

 I found the rare moss Barbiila convoluta var. Sardoa B.&S. on 

 the edge of a narrow cinder path between two high walls in 

 what is called in Yorkshire a 'ginnel.' This w^as at Barkstone, 

 in Vice-county 64. The pellucid apical cell of the nerve in this 

 gathering bifurcates, with the two parts almost at right angles 



1905 June I. 



