Having small spines or similar projections(adjective)
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Use "echinulate" in a sentence
"The = spores = are yellowish in mass, faintly yellow under the microscope, strongly echinulate or tuberculate, globose, 6 -- 10 µ."
"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."
"The = spores = are yellowish in mass, faintly so under the microscope, globose, strongly echinulate, 6 -- 10 µ."