1. Foster First pigmented grapefruit variety in 1907. Seedy Limb sport of Duncan Has lycopene in juice sac and in peel

2. Thompson or Pink Marsh First seedless pigmented selection Bud mutation of Marsh Seedless

3. Ruby Red, Red Blush, Henninger Bud mutation of Thompson 1926 by Henninger at McAllen, TX. Apart from color it is identical to Marsh grapefruit

4. Ray Ruby Uncertain origin discovered in 1970 in the property of R. Ray in Mission, TX. Sweeter than Ruby with better internal color.

5. Irradiating seed from Hudson by Hensz, TX. Pigmented until the end of the season. Slow growing and bush. growth habit Susceptible to foot rot, herbicide sensitive Star Ruby

6. Flame Seed collected from Henderson Internal pigmentation is as good as Star Ruby

7. Rio Red Originated as a seedling of Ruby Red Irradiated and propagated on sour orange root stock Released in 1984

8. Grapefruit varieties

9. C. indica - Indian wild orange Unpalatable loose- skinned fruit. Tanaka calls it Metacitrus Wild state in northeastern India.

10. C. tachibana Tachibana orange Cold hardy, loose skinned fruit ‘Shekwasha’ probably hybrid of this species Very primitive type citrus native to Japan.

11. Papeda Subgenus Inedible with acrid oil droplets in juice vesicles Flowers and fruit small Petioles long and broader than Eucitrus C. ichangensis and C. latipes

12. C. ichangensis Most hardy evergreen citrus Monoembryonic and hybridizes readily with Citrus ‘Yuzu’ and ‘Ichang’ lemons are hybrids.

13. C. latipes Cold hardy like C. ichangensis –Thicker peel and more variable leaves.

14. C. micrantha Small fruits Native to Philippines Includes ‘Microcarpa’ - –smallest fruit and flowers in Citrus

15. C. clebica Small thick peeled fruit Native to Celebes Thin-skinned ‘Southwikii’

16. C. macroptera Leaves 10-12 inches long Fruit as large as sweet oranges Another species is: –C. hystrix a very bumpy warty fruit.

17. The Avocado Lauraceae family Persea americana –Related to cinnamon, camphor, and sassafras trees –Cultivars in West Indian and Guatemalan races. –Thick peel, salt tolerant.

18. Persea drymifolia Mexican race from highlands in Mexico. Leaves posses aromatic odor - anise or sassafras. Thin fruit peel Cold hardy

19. THE END