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Three groups of species in Petunia sensu Jussieu (Solanaceae) inferred from the intact seed morphology
Author(s) -
Watanabe Hitoshi,
Ando Toshio,
Nishino Eisho,
Kokubun Hisashi,
Tsukamoto Tatsuya,
Hashimoto Goro,
Marchesi Eduardo
Publication year - 1999
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.2307/2656947
Subject(s) - sensu , biology , petunia , botany , morphology (biology) , taxon , solanaceae , zoology , genus , biochemistry , gene
The intact seed surface morphology in 45 taxa of Petunia sensu Jussieu native to South America ( Petunia sensu Wijsman plus Calibrachoa ) was compared under scanning electron microscopy. The existence of three groups of species, differentiated in terms of seed morphology, was revealed as follows: (1) all species of Petunia sensu Wijsman, having coarse wavy middle lamellae and anticlinal walls; (2) Calibrachoa parviflora and C. pygmaea , having fine wavy middle lamellae embedded in straight anticlinal walls; and (3) the other species of Calibrachoa , having straight middle lamellae and anticlinal walls. Close relationships between seed morphology and the other characteristics observable in the groups of species are discussed.