11.   Bold tropical plants are beginning to look endangered as temperatures drop.

12.   Birds flit back and forth across the terrace, which is pleasantly cluttered by ferns, and various tropical plants.

13.   -- Remove water hyacinths, lettuce and other tropical plants from ponds.

14.   A central atrium in the first building that visitors enter is lighted by a towering skylight and adorned with tropical plants in niches along concrete walls.

15.   A crop of potted tropical plants and trees is sparse.

16.   A large triodetic dome, the Bloedel Conservatory, shelters tropical plants and miniecosystems.

17.   A. Spathiphyllum, the peace lily, is a tropical plant that normally blooms in the late spring or early summer.

18.   A. Wintering over large, flowering tropical plants like Hibiscus rosa-sinensis is always a challenge.

19.   A. Your Alocasia is a tropical plant, used to constant moisture and high humidity.

20.   All he wanted to do was scrape by on his little tropical plant business.