ON A CASE OF POLYEMBRYONY IN PTEROCARYA FRAXINIFOLIA (JUGLANDACEAE) AND ON POLYEMBRYONY IN GENERAL*
1969; Thieme Medical Publishers (Germany); Volume: 18; Issue: 1 Linguagem: Inglês
10.1111/j.1438-8677.1969.tb00569.x
ISSN1365-2001
Autores Tópico(s)Plant Physiology and Cultivation Studies
ResumoA case of twin nucelli in an ovule of Pterocarya fraxinifolia, originated from a cleavage of the nucellus primordium and presumably representing a hitherto unrecorded type of polyembryony in Juglandaceae, is discussed. The qualification of this category of polyembryony as “false polyembryony” according to the conventional classification of Ernst is unsatisfactory. A new system of classification of polyembryony is proposed.
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