Photos by David Karp and Toni Siebert, 12/4/2008, CVC. Photo rights.
Source: Received as seed from Agric. Exp. Sta., Rio Piedros, Puerto Rico, 1964.
Parentage/origins: Parents unknown.
Rootstocks of accession: Own roots.
Season of ripeness at Riverside: Has not been observed
Notes and observations:
Monoembryonic. Too tender for field in Riverside; kept in greenhouse only.
Description from The Citrus Industry Vol. 1 (1967):
This species is a medium-sized spiny tree, 8-20 m high, native in the eastern part of the Indo-Chinese Peninsula; it is characterized mainly by the leaves with only 7-9 leaflets, which are oval-elliptic or obovate, 2-3 X 1-2 cm, rounded at the apex or slightly emarginate, bluntly cuneate at the base, and the cylindric, pilose petioles, 1-2.5 mm long. The rachis segments are cylindric or narrowly winged. The flowers are grayish-white, 1.5-2.5 cm diam.; sepals very short, 1-2 X 0.5 mm, very pilose, soon falling; petals lanceolate, 1.2-1.8 cm long, with very acute cuneate tips; ovary with 5-6 imperfect locules soon fusing into a single cavity. The flattened-globose fruits, borne in clusters of 3 or 4, are 5.5-6.5 cm wide, 4.5 cm high, and have woody shells, 7-8 mm thick, composed of tapering prisms 1:5-3 mm diam. with the largest end out, and arranged like the stones of a curved arch. The center of the fruit is filled with red flesh said to be edible.
Availability: Not commercially available in California.
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