LEVINE: CyTOLOGY OF HYMENOMYCETES 181 
Fic. 57. A prophase stage of the second division. 
Fic. 58, 59. Second division in the basidium, cnene er centrosomes and 
astral rays, chromosomes in equatorial pla 
Fic. 60. Cystidium with two sharply differentiated eee to the left is a 
sidium. 
a 
Boletus albellus. 
Fic. 64. pore with single nucleus. 
Fic. 65. First division in agp diaster stage. 
Fic. 66. Binucleated s 
Fic. 67. Second avon, spindles with centrosomes and astral rays, chromo- 
somes in equatorial plate stage. 
Fic. 68. Similar eae only one spindle is figured; several chromosomes are 
s ; 
Fic. 69. A spore with three nuclei. 
