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SUMMARY
| 1. | Hyphal fragments were present in Kansas in the air throughout the year with highest numbers during growing seasons. | ||||
| 2. | Numbers in winters varied from 1 to 6, in summers from 5 to 51 per cubic foot. | ||||
| 3. | Fragments varied in size and length, mostly from 5 to 15 μ, occasionally to 100 μ. The majority were brown septate thick-walled but hyaline fragments were also present. | ||||
| 4. | Viability ranged from 29 to 82%. Preliminary isolations produced colonies of Cladosporium, Alternaria, and Penicillium. | ||||
| 5. | The abundance of viable fungal fragments suggests that this may be an important means of asexual reproduction. | ||||