The rather unusual name for this natural tangelo is said to have been given to this unattractive but delicious fruit in the Canadian market which first received it. It was referred to as the "Ugly" citrus fruit. Soon thereafter, the name UGLI® became a copyrighted trademark of Cabel Hall Citrus Ltd. Flesh is orange-coloured, tender and very juicy. The flavour rich and subacid. Maturity season late.

Ugli originated as a chance seedling of unknown parentage near Brown's Town, Jamaica. It is obviously a hybrid with characters that suggest mandarin and grapefruit parentage so it was classed with tangelos. Trout Hall Ltd., the sole marketers of UGLI ®, tell on their Internet site that the original tree now used for production was a hybrid of Seville orange, grapefruit and tangerine.

Because of the monoembryony exhibited by the seeds,some botanists are of the opinion that a pomelo is the parent in question rather than grapefruit. Similar crosses from different origin are classified as pomelos.

The varieties below are hybrids of Orlando tangelo and clementine.

Fairchild
The trees are vigorous with a wide-spreading habit. For best fruit production, a pollinator is necessary. The fruit is medium-sized, oblate in shape, and has a thin, slightly pebbled, dark orange rind. Fairchild is not especially easy to peel and the fruits typically contain many seeds, but the flesh is quite juicy and the flavour is rich and sweet.

Lee  
Fruit is medium in size, slightly oblate to subglobose; basal area slightly raised and furrowed.  Rind thin, leathery, moderately adherent but readily peelable; surface smooth and glossy: colour deep yellowish-orange at maturity. Flesh colour orange; tender and melting; juice abundant; flavour rich and sweet. Seeds are numerous. Medium-early in maturity. Tree nearly thornless; dense foliage of medium-sized, lanceolate leaves.

Nova (in Europe Nova is called Clemenvilla)
A sibling of the Lee, Osceola, and Robinson mandarins, is a hybrid of clementine Fina and tangelo Orlando. In 1971 'Nova' was intoduced to Europe where it is called Clemenvilla. The tree grows vigorously and can be thorny. The medium-sized fruit is usually subglobose and has a slightly pebbled thin reddish-orange rind that is easily peeled. The flesh is dark orange, fine-textured, and juicy with a sweet, rich flavour. In mixed plantings, Nova fruits are moderately seedy, but in isolation the fruits are seedless but less plentiful. Nova matures in early winter and holds well on the tree. Nova (Clemenvilla) is a premium marmalade variety with a rich sweet flavour. Make sure you include the peel as well.

Osceola  
Fruit medium in size, medium-oblate in form; base flattened and sometimes slightly corrugated. Rind thin, leathery, moderately adherent but easily peelable; surface smooth and glossy; colour deep orange to almost coral-red at maturity. Flesh colour deep orange; juicy; flavour rich and distinctive. Seeds are numerous. Medium-early in maturity. Tree virtually thornless, more upright than Clementine; dense foliage composed of medium-sized lanceolate leaves.This exceptionally high-coloured, early variety is a sister to Lee and Robinson, all three resulting from a Clementine mandarin-Orlando tangelo cross made by Gardner and Bellows of the U.S. Department of Agriculture in Florida in 1942 and released in 1959.  

Page
This is a cross between Minneola tangelo and Clementine mandarin made by Gardner and Bellows of the U.S.D.A. in 1942. Page was officially released as an orange, but technically speaking the variety is a tangelo hybrid since its parentage is three-fourths mandarin and one-fourth grapefruit. The fruit is medium in size, easily peeled, moderately pebbled and has numerous seeds. The flesh colour is a deep orange, tender and juicy, flavour rich and sweet.

Robinson  
Fruit medium-large, oblate (more so than Osceola): base evenly rounded or slightly necked. Rind thin, tough and leathery, moderately adherent but easily peelable: surface smooth and glossy; colour deep yellowish-orange at maturity.  Segments numerous (12-14), readily separable. Flesh colour deep orange; juicy; flavour rich and sweet.  Seeds moderately numerous.  Early in maturity (about the same as Lee and Osceola but colours earlier). Tree upright-spreading, nearly thornless; dense foliage consists of large broadly lanceolate, taper-pointed leaves.

The following information is from The Facts sheets of Tahoe Gold^®, Yosemite Gold^® and Shasta Gold^® mandarins written by M.L. Roose and T.E. Williams, Department of Botany and Plant Sciences' University of California, Riverside.

Cleopatra mandarin is the chota or billi kichili of India. The tree is attractive, round-topped, symmetrical, and thornless, with small, dark-green leaves.

The fruit is orange-red, small, oblate, and highly depressed at the apex, with thin, somewhat rough rind. The flesh texture is soft and juicy and the flavour is somewhat acid.

Considered to be native to India and said to have been introduced into Florida from Jamaica sometime prior to 1888, Citrus reshni is increasingly important as a rootstock in the United States and elsewhere. It is an attractive ornamental and bears fruit the year round.

This species is the Shekwasha or sequasse in collections in the United States and the shiikuwashâ of Okinawa and Taiwan. The tree is vigorous, round-topped, and finely stemmed. The fruit is very small, orange-coloured, oblate, and highly depressed at both ends, with very thin, loose, and aromatic rind. The flesh is soft, gelatinous, and acid, but ultimately attains a rich flavour. The tree makes an attractive ornamental.