A new and distinct cultivar of Rex Begonia plant named `Tucson Bonfire`, characterized by its uniform growth habit; moderate plant vigor; no requirement for winter dormancy; and interesting and attractive leaf coloration and pattern.

BACKGROUND OF THE INVENTION
 The present invention relates to a new and distinct cultivar of Begonia
 plant, botanically known as Begonia rex hybrid, commercially known as Rex
 Begonia, and hereinafter referred to by the name `Tucson Bonfire`.
 The new Rex Begonia was discovered and selected by the Inventor in a
 controlled environment in Vista, Calif., in August, 1995, within a large
 group of seedling progeny from multiple crossings of unidentified
 selections of Begonia rex hybrids.
 The selection of this plant was based on its uniform growth habit, moderate
 plant vigor, and attractive foliage coloration and pattern.
 Asexual reproduction of the new Rex Begonia by leaf cuttings taken in a
 controlled environment in Vista, Calif., has shown that the unique
 features of this new Rex Begonia are stable and reproduced true to type in
 successive generations.
 SUMMARY OF THE INVENTION
 The cultivar `Tucson Bonfire` has not been observed under all possible
 environmental conditions. The phenotype may vary somewhat with variations
 in environment such as temperature, daylength and light intensity,
 without, however, any variance in genotype.
 The following traits have been repeatedly observed and are determined to
 the the unique characteristics of `Tucson Bonfire`. These characteristics
 in combination distinguish `Tucson Bonfire` as a new and distinct Rex
 Begonia:
 1. Uniform growth habit.
 2. Moderate plant vigor.
 3. Does not require winter dormancy.
 4. Interesting and attractive leaf coloration and pattern.
 In side-by-side comparions conducted by the Inventor in Vista, Calif.,
 plants of the new Rex Begonia differ from plants of the nonpatented
 cultivar `Merry Christmas Corkscrew` in the following characteristics:
 1. Plants of the new Rex Begonia grow more rapidly than plants of the
 cultivar `Merry Christmas Corkscrew`.
 2. Leaves of plants of the new Rex Begonia are larger and more brightly
 colored than leaves of plants of the culitvar `Merry Christmas Corkscrew`.
 3. Leaves of plants of the new Rex Begonia do not have a "corkscrew"
 formation whereas leaves of plants of the cultivar `Merry Christmas
 Corkscrew` have a "corkscrew" formation.
 4. Plants of the new Rex Begonia do not require a winter dormancy period
 whereas plants of the cultivar `Merry Christmas Corkscrew` do require a
 winter dormancy period.
 In side-by-side comparisons conducted by the Inventor in Vista, Calif.,
 plants of the new Rex Begonia differ from plants of the nonpatented
 cultivar `Lillium` in the following characteristics:
 1. Plants of the new Rex Begonia grow more rapidly than plants of the
 cultivar `Lillium`.
 2. Leaves of plants of the new Rex Begonia are larger, flatter and are more
 brightly colored that leaves of plants of the cultivar `Lillium`.
 3. Plants of the new Rex Begonia do not require a winter dormancy period
 whereas plants of the cultivar `Lillium` do require a winter dormancy
 period.