FIG. 13S. — Fruit-bodifs of Coprinus Iwjopiis. Vitriutions in size, and vertical sections. A, dwarf fruit- 

 bodies on horse dung, fully expanded, the smallest observed. B, dwarf fruit-bodies of slightly larger size, on 

 dung. C, larger fruit-bodies, just before the expansion of the pileus. D, a still larger fruit-body (medium 

 size). A-D, all observed on unsterilised horse dung at Winnipeg. E, a fruit-body in a pure culture on horse 

 dung, young, the stipe about to elongate rapidly. F, a cross-section through the pileus of E, showing the 

 stipe and radiating gills. G, H, I, J, four fruit-bodies grown from spores in pure cultures on horse dung : 

 G, with the pileus rapidly expanding ; H, with the pileus more expanded ; I, with the pileus almost flattened 

 and shedding spores from its gill-edges ; J, with the pileus now revolute, the gills reduced by autodigestion 

 from below upwards, and the spores still being discharged in large numbers. K, L, M, N, four fruit-bodies 

 in pure cultures on horse dung, showing successive stages in development. In K and L the gills are white ; 

 in M the gills are blackening from below upwards'owing to the gradual ripening of the spores ; in N the gills 

 are uniformly black. In M and X, which were grown in a large glass jar on sterilised horse-dung, the gills are 

 exceptionally wide (cf. the gills of G and H). O and P, two fruit-bodies grown in pure culture on horse dune, 

 not in the light, but in total darkness. Each has a slender stipe-base or pseudorhiza p. The gills of O are 

 verv narrow (rf. I and S). Q, spores, like those being discharged by I anil J, but enlarged. Fruit-bodies all 

 of English origin o.vcept A-D and J. All fruit-bodies shown natural size ; inagnilicatiou of the spores at Q, l.'93. 



