Borneo Red Rangpur Lime Budwood

Citrus limonia.

The canton lemon in South China, hime lemon in Japan, cravo lemon in Brazil, Japanche citroen in Java. The name lime employed in connection with this fruit is misleading and should be avoided since the only similarities between it and the true limes are that both have small flowers and because they are both highly acid can be used as substitutes. 

Resemblances between the Rangpur and mandarin are obvious and numerous, and for this reason it is best included under the mandarin-like fruits. The rough lemon and Rangpur also exhibit rather close similarities and important differences. 

Propagates readily from cuttings and is dwarfed when the roots are confined. Good as a rootstock primarily because of its tolerance to the tristeza virus and resistance to soil-borne diseases, it is a rootstock widely employed, especially in Brazil where it is known as the cravo lemon.  When employed for such use, however, the scion materials must be free from exocortis virus, for the Rangpur as a rootstock is severely affected by that disease.

Fruit small to medium in size, variable in form but mainly depressed globose to round or broadly obovate; sometimes with furrowed collar or low neck; often with short nipple partially or entirely surrounded by a shallow furrow. Rind color yellowish to reddish-orange; thin, and moderately loose, with surface minutely pitted and smooth to slightly rough. Segments 8 to 10, loosely adherent; axis large and hollow at maturity. Flesh orange-colored; tender, juicy, and strongly acid. Seeds fairly numerous, small, highly polyembryonic, and with light green cotyledons. Fruit holds on tree for a long period. 

Tree usually vigorous and productive, medium-sized, spreading and drooping, with slender twigs, comparatively few and small thorns; foliage dull-green and mandarin-like, and new shoot growth lightly purple-tinted. Flowers small and mandarin-like and buds and petals deeply purple-tinged. Hardy to cold. 

Rootstocks of accession: Yuma Ponderosa.

Season of ripeness at Riverside, California: The main crop is winter and early spring.

Prepared by the Givaudan Citrus Variety Collection at The University of California Riverside.