Rough-walled spores called zygospores are formed by

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The hyphae of the Zygomycetes are sparsely septate. Sporulation takes place by progressive cleavage during maturation within the sporangium, a saclike structure produced at the tip of a long stalk (sporangiophore). Sporangiospores, spores produced within the sporangium, are produced and released by the rupture of the sporangial wall. Rarely, some isolates may undergo sexual reproduction to produce zygospores, which are rough-walled spores produced by the union of two matching types of a Zygomycetes.

Rough-Walled Spores Called Zygospores Are Formed by