Prodromus florae Fennicae. 



32 pp. Helsingforsiae, 1843.* 



Wistrom, P. W. 



Vaxtgeografiska studier ror. cifvergangeu mellan den Nord-svenslca och mellansvenska 

 karlvaxtflora. 



43 pp. Falun, 1900. 



Wittrock, V. B. 



Fanerogam-och thallogam-veget. i skand. 

 pp. Upsala, 1869. 



Om Snons och Isens flora, Sarskildt i de arktiska trakterna 

 60 pp. 1 pi. Stockholm, 1883.* 



(Xordenskiold. Stndier och forskningar foranledda, etc.) 



Tabellari.sk oefersigt af skandinaviens vaextfamiljer. 

 pp. Mariestad, 1869. 



Wolf, E. L. 



The leaves of wild and cultivated trees and shrubs. (Russian.) 

 159 pp. St. Petersburg, 1892. 



Biiume und straucher im winterlichen zustande. (Russian ) 

 79 pp. St. Petersburg, 1892. 



Wrangell, Ferdinand von. 



Narrative of an expedition to the Polar sea in . . . 1820-23. 

 (English by Mrs. Sabine.) 



1 ed. pp. 



2 ed. pp. London, 1844. 



Zabel, N. E. 



Trees and shrubs growing in Russia. (Russian.) 

 78 pp. Moskau, 1884. 



Zetterman, A. J., and Brander, A. E. 



Bidrag til syd-vestra Finnlands" flora. 

 30 pp. Helsingfors, 1867. 



Zetterstedt, Joamie Emanuele. 



Om vegetationen vid Altenfjord. 



(Ofv. K. Vet. .Akad. Forh. XXXI, no. 10, 1874, pp. 83-52.)* 



Om vegetationen . . . Snialand. 

 37 pp. Stockholm, 1867.* 



(K. V. Ak. Handl. VI, no. 2.) 



Zetterstedt, J. W. 



Resa genom Sveriges och Norriges Lappmarker. 

 Vol. I, 266 pp. 3 pis. . Lund, 1822. 

 2, 231 pp. pis. Lund, 1822. 



Resa genom Uniea Lappmarker i vesterbottens Lan. ar 1832. 

 398 pp. 4 pis. Oerebro, 1833. 



Zigra, J. H. 



Dendrologisch-dconomisch-technische flora der im Russischen 

 kaiserreiche ... 



Vol. I, 461 pp. Dorpat, 1839. QK-Z 68 

 2, 393 pp. Dorpat, 1839. QK-Z 68 



(Russian by .) 



Vol. I, pp. Petropoli, 1842. 



2, pp. Petropoli, 1842. 



Zinger, W. J. 



Sammlung von nachrichten iiber die fiora des siidlichen Russ- 

 lands. (Russian.) 



520 pp. Moskau, 1886. 



351 



