Foster First pigmented grapefruit variety in 1907 Seedy

Thompson or Pink Marsh • First seedless pigmented selection • Bud mutation of Marsh

Ruby Red, Red Blush, Henninger • Bud mutation of Thompson 1926 by Henninger at

Ray Ruby • Uncertain origin discovered in 1970 in the property of R. Ray

Star Ruby • Irradiating seed from Hudson by Hensz, TX. • Pigmented until the

Flame • Seed collected from Henderson • Internal pigmentation is as good as Star

Rio Red • Originated as a seedling of Ruby Red • Irradiated and propagated

C. indica - Indian wild orange • Unpalatable loose- skinned fruit. • Tanaka calls

C. tachibana • Tachibana orange • Cold hardy, loose skinned fruit • ‘Shekwasha’ probably

Papeda Subgenus • Inedible with acrid oil droplets in juice vesicles • Flowers and

C. ichangensis • Most hardy evergreen citrus • Monoembryonic and hybridizes readily with Citrus

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

C. micrantha • Small fruits • Native to Philippines • Includes ‘Microcarpa’ – smallest

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

C. macroptera • Leaves 10 -12 inches long • Fruit as large as sweet

The Avocado • Lauraceae family • Persea americana – Related to cinnamon, camphor, and

Persea drymifolia • Mexican race from highlands in Mexico. • Leaves posses aromatic odor

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

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

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

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

Star Ruby • Irradiating seed from Hudson by Hensz, TX. • Pigmented until the end of the season. • Slow growing and bush. growth habit

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

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

Grapefruit varieties

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

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

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

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

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

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

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

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

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

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

THE END