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Journal of Agricultural Research 
Vol. XXXI, No. 7 
Fig. 1.—A, young primordium before cell fusions; B, first cell fusions, two sterile cells above; C, cell 
fusion, three sterile cells above; D, first mature spore; E, margin of sorus, fusions at different levels; F, 
chains of young spores, “peridium ,, (a) above; G, oblique cell divisions; H, I, basidia supported by 
elongated part of cell wall (&); J, R, spore chains in old sorus, stalklike remains of spore above; L, 
typical spore chain; M, N, basidial cells with additional body in each near nucleus. (C, L, and N are 
more highly magnified, and M and E less highly magnified, than the others.) 
