The = spores = are white, globose, echinulate, 3 -- 4 µ.    From Wordnik.com.  [Studies of American Fungi. Mushrooms, Edible, Poisonous, etc.] Reference

The = spores = are yellowish in mass, faintly so under the microscope, globose, strongly echinulate, 6 -- 10 µ.    From Wordnik.com.  [Studies of American Fungi. Mushrooms, Edible, Poisonous, etc.] Reference

The = spores = are black in mass (with a suggestion of a purple tinge), oval to broadly elliptical, inequilateral, pointed at each end, echinulate, or minutely tuberculate, 8 -- 11 × 6 -- 8 µ.    From Wordnik.com.  [Studies of American Fungi. Mushrooms, Edible, Poisonous, etc.] Reference