THE FUNGI 193 



'79. 11. Luerssen, Chr. Handbuch der systematischen Botanik, Vol. 1. 



Leipzig, 1879. 

 '99. 12. Peirce, G. J. The Nature of the Association of Alga and Fungus in 



Lichens. Proc. Califor. Acad. Sciences. 1899. 

 '82-'92. 13. Saccardo, P. A. Sylloge Fungorum, Vols. 1-14. Padua, 1882- 



'92. The most important systematic work upon Fungi. 



'97. 14. Schneider, A. Text-book of Lichenology. Binghamton, N.Y., 1897. 

 '98. 15. - - Guide to the Study of Lichens. Boston, 1898. 

 '99. 16. Stevens, F. L. The Compound Oosphere of Albugo Bliti. Bot. Gaz. 



XXVIII. 1899. 



17. Strasburger, E. Text-book of Botany. 



18. Das Botanische Praktikum. 



'90. 19. Sturgis, W. C. On the Carpologic Structure and Development of the 

 Collemaceae and Allied Groups. Proc. American Acad., Vol. XXV. 

 May, 1890. 



'88. 20. Thaxter, Roland. The Entornophthoracese of the United States. 

 Mem. Boston Soc. of Nat. History, Vol. IV. 1888. 



'96. 21. Monograph of the Laboulbeniacese. Mem. American Acad., 



XII, No. 111. 1896. 



22. Many important papers in the Botanical Gazette and else- 

 where, dealing principally with aquatic Fungi. 



'97. 23. Tubeuf, K. Diseases of Plants. Longmans, Green & Co., 1897. 



'99. 24. Underwood, L. M. Moulds, Mildews, and Mushrooms. New York, 

 1899. 



'98. 25. Van Tieghem, Ph. Traite" de Botanique. Paris, 1898. 



'96. 26. Wager, H. On the Structure and Reproduction of Cystopus candidus. 

 Ann. of Bot., X. 1896. (Includes full bibliography of subject.) 



'98. 27. The Nucleus of the Yeast-plant. Ann. of Bot., XII. 1898. 



'99. 28. The Sexuality of Fungi. Ann. of Bot., XIII. 1899. 



'00. 29. On the Fertilization of Peronospora parasitica. Ann. of Bot., 



XIV. 1900. 



'95. 30. Warming, E. W. Handbook of Systematic Botany. London and 

 New York, 1895. 



'90. 31. Zopf, W. Die Pilze. Breslau, 1890. 



