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TNTERGENERIC hybridization of both annual (Lolium •*• multifiomm L.) and perennial (Lolium perenne L.) ryegrass with tall fescue (Festuca amndinacea Schreb.) is being employed at the Kentucky Agricultural Experiment Station in an effort to improve the palatability and nutritive value of tall fescue. Tall fescue is a productive pasture grass that is widely adapted to the soils and climate of the southeastern United States. It is regarded, however, as relatively low in palatability and nutritive value. On the other hand, perennial and annual ryegrasses are highly nutritious and palatable, but are essentially annual in the southeastern United States. Numerous investigators (2, 4, 8, 10) have succeeded in producing hybrids between Lolium spp. and Festuca spp. but no improved varieties have resulted.