A Study on the Seed of Lardizabalaceae and Sargentodoxaceae, (1) A SEM Examination of Testa

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A Study on the Seed of Lardizabalaceae and Sargentodoxaceae, (1) A SEM Examination of Testa

Xia Quan, Peng Ze-Xiang

(Department of Biology, Lanzhou University, Lanzhou)

Received:1900-01-01 Revised:1900-01-01 Online:1989-07-10 Published:1989-07-10
Contact: Xia Quan

Abstract

Abstract:

Testa SEM characters of Lardizabalaceae and Sargentodoxaceae have not been

used in former studies of taxonomy and phylogeny. In this work examined by scanning elec-

tron microscope (SEM). was the testa surface of 5 genera including 15 species of Lardizaba-

laceae and Sargentodoxaceae. Sargentodoxaceae is found quite different from Lardizabalaceae

in its smooth test. The testa sculpture of Akebia, Holboellia and Stauntonia is basically

striate, but that of Sinofranchetia, though striate, is verrucous on striations. Decaisnea is very

isolated for its mosaic testa sculpture.

The tesa examination confirms the rationality of the taxonomic treatment of Sargentodoxa-

ceae by Stapf, the isolated taxonomic position of Decaisnea and Sinofranchetia in Lardizabala-

ceae, and the close interrelationship among Akebia, Holboellia, and Stauntonia.

Key words: Lardizabalaceae, Sargentodoxaceae, testa, relationship

Xia Quan, Peng Ze-Xiang. A Study on the Seed of Lardizabalaceae and Sargentodoxaceae, (1) A SEM Examination of Testa[J]. .

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