344 INDEX TO AMERICAN BOTANICAL LITERATURE 
Vaughan, T. W. The geologic work of mangroves in southern Florida. 
Smithson. Misc. Coll. 52: 461-464. pl. 46-52-+f. 79, 80. 15 S 1909. 
Vesierzren, T. Verzeichnis nebst Diagnosen und Bemerkungen zu meinem 
Exsiccatwerke ‘“‘Micromycetes rariores selecti’’ Fasc. 18-46. 
Bot. Tidskr. 3: (37-58). 28 Je 1909. 
Wilson, G. W., & Seaver, F. J. Ascomycetes and lower fungi. 
Mycologia 1: 121-125. 4 Je 1909. 
Svensk 
Fascicle I. 
Wolff, H. Eryngium affine nov. spec. 
15 D 1909. 
From Costa Rica. 
Repert. Nov. Spec. 7: 345, 346. 
Zon, R. Methods of determining the time of the year at which timber 
was cut. Forest. Quart. 7: 402-409. f. 1-6. D 1909. 
