An Examination on Indumentum and Fruit of Dimocarpus longan and D. confines

Fu De-zhi, Song Shu-yin

Received:1900-01-01 Revised:1900-01-01 Online:1994-09-18 Published:1994-09-18
Contact: Fu De-zhi

Abstract:

Examination on hairs and fruits of the Dimocarpus longan Lour. (Guiyuan) and

D. confinis (How et Ho) H. S. Lo (magic fruit) was carried out. The fruit of D. longan

was found to be of smoothly colliculate or granulate protuberances and typical tuft hairs on

the surface, and the leaf was also of tuft hairs on the lower surface. However, the fruit of

D. confinis was of dense and hard aculeate protuberances and simple and glandular hairs on

the surface, and the leaf was also of the same kind of hairs on the lower surface. These char-

acteristics of D. longan can been easily detected in samples of commercial fruits, which were

misidentified as the fruits of D. confinis. Moreover, the fruit surface of Guiyuan Sampled

from the markets had no any artificially destroryed trace, which indicated that they were

not forged through the processing of the fruits of D. confinis, and thus they were true

Guiyuan, the fruit of D. longan.

Key words: Dimocarpus longan (Guiyuan), D. confinis (magic fruit), fruit, Indumentum

Fu De-zhi, Song Shu-yin. An Examination on Indumentum and Fruit of Dimocarpus longan and D. confines[J]. .

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