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FRUIT POLYMORPHISM IN EPHEMERAL SPECIES OF NAMAQUALAND .2. ANATOMICAL DIFFERENCES BETWEEN POLYMORPHIC DIASPORES OF ARCTOTIS-FASTUOSA AND URSINIA-CAKILEFOLIA
被引：9
作者：
BENEKE, K
VONTEICHMAN, I
VANROOYEN, MW
THERON, GK
机构：
关键词：
ARCTOTIS-FASTUOSA;
ARID ENVIRONMENT;
ASTERACEAE;
NAMAQUALAND;
URSINIA-CAKILEFOLIA;
D O I：
10.1016/S0254-6299(16)30792-X
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The different colour diaspore types of Arctotis fastuosa Jacq. and Ursinia cakilefolia DC. were examined. Pericarp and seed coat anatomy revealed only minor differences between fruit morphs. Diaspores of A. fastuosa are characterized, amongst others, by a lens-shaped pericarp operculum and bubble-shaped, air-filled cells in the outer epidermis of the seed coat. The latter may represent a mechanism to protect the embryo against excessive heat.
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页码：456 / 460
页数：5
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