160 



LICHENS OF SOWERBY 8 HERBARIUM. 



12. Lichen candelarius. E. B. t., 1794. = Physcia lychnea (Ach.). 

 The specimen figured does not occur in herb. Sowerby, but frag- 

 ments attached to the original drawing show that it is entirely as 

 above. True Lecanora candelaria (Ach.), Nyl., is not the Lichen 

 candelarius of our older British authors. 



13. Lichen pxoboscideus. E. B. t., 522. = Gyrophora cylindrical 

 Linn., and var. denticulata, Ach. Of these the type is represented 

 in the two upper figs., and the var. in the two lower. The con- 

 founding of the two species, both of which occur in herb. Sowerby, 

 s. n. proboscideus, as observed in E. B. t., 2484 (the true pro- 

 boscidea), was, owing to specimens of cylindrica being so named, no 

 doubt by accident, in herb. Linnseus. 



14. Lichen pellitus. E.B.t. 931. = Gyrophora poly rrhiza (Linn.). 

 Along with the specimen figured in herb. Sowerby is one of the 

 polyphyllus var. luxurians, Ach., which is the form usually seen 

 in the Scotch Highlands. 



15. Lichen deustus. E. B. t., 2483. = Gyrophora Jlocculosa,~H.ffm. 

 The fruited specimen figured, from Swartz, is absent from herb. 

 Sowerby, in which, under the same name, there appears from 

 Scotland a specimen of G. pj'oboscidea, which is evidently the 

 Lichen deustus of Lghft. Fl. Scot. ii. p. 861. Of G. arctica there 

 is no specimen in herb. Sowerby, nor is this likely to have been 

 gathered in Devonshire. 



CRYPTOGAMIC LITERATURE. 



Hobkirk, C. P. — A Synopsis of the British Mosses, containing 

 Descriptions of all the Genera and Species, 196 pp London, 1873. 



Venturi, Dr. — " Ueber Orthotrichum," in Hedwigia, No. 2, 

 Feb., 1873. 



Juratzka, J. — u Bryologische Notizen," in Hedwigia, for Feb., 

 1873. 



Smith, W. G. — " New Hymenomycetous Fungi from Stoves," 

 in Journal of Botany, for March, 1873. 



Witt, Otto N. — " Bericht iiber die Untersuchung zweier 

 Diatomaceen-Gemische." Ein Beitrag zur Kenntniss der Flora 

 der Sudsee. J plate, 4to. 1872. 



Nylander, W. — "Addenda nova ad Lichenographiam Euro- 

 paeam," in Flora, Jan., 1873. 



Wells, Samuel. — The Structure of Eupodiscus Argus, in 

 Monthly Microscopical Journal, for March. 



Lang, Captain F. H. — On Professor Smith's Conspectus of the 

 Diatomaceaa, in Monthly Micro. Journ., for March. 



De Notaris, Dr. G. — lie Piante Crittogame prolusione ad un 

 corso di esercitazioni critto-gamologiche. Rome, 1873. 



Stoduer, Chas. — The Structure of Eupodiscus Argus, in the 

 Lens, for Jan., 1873. 



