A new type of specialized morphophysiological dormancy and seed storage behaviour in Hydatellaceae, an early-divergent angiosperm family

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Unique stigmatic hairs and pollen-tube growth within the stigmatic cell wall in the early-divergent angiosperm family Hydatellaceae.

BACKGROUND AND AIMS The ultrastructure of the pollen tubes and the unusual multicellular stigmatic hairs of Trithuria, the sole genus of Hydatellaceae, are described in the context of comparative studies of stigmatic and transmitting tissue in other early-divergent angiosperms. METHODS Scanning and transmission electron microscopy and immunocytochemistry are used to study the structure and co...

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Reproductive ecology of the basal angiosperm Trithuria submersa (Hydatellaceae).

BACKGROUND AND AIMS Trithuria, the sole genus in the family Hydatellaceae, is an important group for understanding early angiosperm evolution because of its sister relationship to the ancient lineage, Nymphaeales (water lilies). Although also aquatic, Trithuria differs from water lilies in that all species are extremely small, and most have an annual life form and grow in seasonal wetlands. Ver...

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Archaefructaceae, a new basal angiosperm family.

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ژورنال

عنوان ژورنال: Annals of Botany

سال: 2010

ISSN: 1095-8290,0305-7364

DOI: 10.1093/aob/mcq062