374 WILSON*S NOTES ON BRITISH MUSCOLOGY. 



authentic set of Humboldt's plants, and a considerable num- 

 ber of Michaux's, which were received from the younger 

 Richard. As the new Emimeratio Plantarum of this indus- 

 trious botanist proceeds, this herbarium will become still 

 more important. 



For a detailed account of the Russian botanical collec- 

 tions and collectors, we may refer to an historical sketch of 

 the progress of botany in Russia, &.C., by Mr Bongard, the 

 superintendent of the Imperial Academy's herbarium at St 

 Petersburg!], published in the Recueil des Actes of this insti- 

 tution for 1834. An Encrlish translation of this memoir is 

 published in the first volume of Hooker's Companion to the 

 Botanical JIagazine. 



A. G. 



XXV. — Notes and Notices in reference to British Mus- 

 cology. By W. Wilson, Eso., of Warrington. 



1. Phascum crassinerviiim, var. stenophyllian, Bruch and 

 Sc/umper, Bryol. Europ. Fasc. i. t. 2. — Found several 

 years ago in Cheshire, by the writer of this note. Perhaps 

 the British Moss ought to be rather referred to the typical 

 form of P. crassinervium, figured by Bruch and Schimper; 

 this variety certainly exhibits little character, but both are 

 quite distinct from P. crassinervium of Greville, Fl. Crypt. 

 Scot. 



2. P. alternifolium — There is no doubt that the British 

 JMoss so called, is identical with Archidium phascoides, 

 Schivaegr. Suppl. t. 205, and of Bruch and Schimper, Bryol. 

 Europ. Fasc. i. It is scarcely less certain, however, that 

 Phascum alternifolium, Schwaegr. Suppl. ^.10, is the same moss, 

 if the figure is to be depended on ; yet neither Schwaegrichen, 

 nor Bruch and Schimper take this view.— P. alternifolium^ 

 Bruch and S., is scarcely distinguished, except as a variety, 

 from P. suhulatum. 



3. P. Floerkeamun, Schwaegr. SuppL t. 3. — This very in- 

 terestinn; addition to the list of British Phascn. has latelv 



