"Two conidia joined with one secondary conidium."—Finley, 1917

Joined conidia

"Two conidia joined with one secondary conidium."—Finley, 1917

An illustration of powdery mildew showing conidia bearing hypha.

Powdery Mildew Conidia Bearing Hypha

An illustration of powdery mildew showing conidia bearing hypha.

"Germinating spore, with secondary spores or conidia."—Finley, 1917

Germinating spore

"Germinating spore, with secondary spores or conidia."—Finley, 1917

"Telento spores, one germinating, bearing conidia."—Finley, 1917

Telento spore

"Telento spores, one germinating, bearing conidia."—Finley, 1917

"Zygospore from two conidia conjoined."—Finley, 1917

Zygospore

"Zygospore from two conidia conjoined."—Finley, 1917