178 LEVINE: CyTOLOGY OF HYMENOMYCETES 
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1889. Tschirch, A. Angewandte Pflanzenanatomie, 193. 
1901. Topin, J. Notes sur les cristaux et concrétions des Hyménomy- 
cétes et sur le réle physiologique des cystides. Thése Pharm, 
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1903. Van Bambeke, C. Sur |’évolution nucléaire et la sporulation 
chez Hydnangium carneum Wallr. Mém. Acad. Roy. Sci. 
Belg. 54: 1-44. 
1903. Voss, W. Uber Schnallen und Fusionen bei den Uredineen. 
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1893. Wager, H. On nuclear division in the Hymenomycetes. 
Ann. Bot. 7: 489-515. 
1894. Wager, H. On the presence of the centrospheres in fungi. 
Ann. Bot. 8: 321-334 
1899. Wager, H. The sexuality of the fungi. Ann. Bot. 13: 575- — 
597: 
1909. Wakefield, E. M. Uber die Bedingungen der Fruchtkérper- 
bildung sowie das Auftreten fertiler und steriler Stamme bei 
Hymenomyceten. Naturw. Zeitschr. Forst u. Landwirt. 
7: 521-551. 
All the figures were drawn with the aid of a camera lucida 
and with the Leitz 1/16 objective. Figs. 11, 14, 16-45 were 
made with ocular 4; distance from camera mirror to drawing 
board 260 mm. Figs. 1, 3, 4, 5, 6, 9, 10, 46-79 were made with 
ocular 4; distance from camera mirror to drawing board 170 mm. 
Figs. 13, 15 were made with ocular 4; distance from camera mit- 
ror to drawing board 90 mm. Fig. 7 was made with ocular 3; 
distance from camera mirror to drawing board 90 mm. Figs. 2s — 
8, 12 were made with ocular 1; distance from camera to drawing 
board 90 mm. 
Explanation of plates 4-8 
PLATE 4 
Pholiota — 
Germination tube at the end of fifteen and a half hours. 
Fic. 2. Same as Fig. 1 at end of forty-eight hour 
Fic. 3. Uninucleated hyphal cells in mycelium a days old. 
Fic. 4. Binucleated hyphal cells in mycelium three days old. 
Ses presents 
