ALBERTS & MERKEL BROS., INC., Box 537, Boynton Beach, Fla.—Orchids and other tropical plants.

ALLGROVE, ARTHUR EAMES, North Wilmington, Mass.—Terrarium and woodland plants and supplies.

ALPENGLOW GARDENS, 13328 Trans-Canada Highway, North Surrey, New Westminster, B.C., Canada—Alpines, perennials, trees, and shrubs.

AMERICAN PERENNIAL GARDENS, 6975 Dover St., Garden City, Mich.—Perennials.

ARENIUS, ARTHUR, 123 Western Drive, Longmeadow 6, Springfield, Mass.—Gladiolus.

ARMSTRONG NURSERIES, Ontario, Calif.—Roses, dwarf citrus.

ARNDT’S FLORAL GARDEN, Route 2, Box 336, Troutdale, Ore.—African violets and other gesneriads.

BARNHAVEN, Box 218, Gresham, Ore.—Primulas.

BARRINGTON GREENHOUSES, 860 Clements Bridge Rd., Barrington, N.J.—House and greenhouse plants.

BEAHM GARDENS, 2686 E. Paloma St. Pasadena 8, Calif.—Epiphyllums and other succulents.