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Androecium

, 2008
exaly   +3 more sources

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Evolutionary trends in the androecium of theOrchidaceae

Plant Systematics and Evolution, 1985
The evolution of the androecium in theOrchidaceae shows three major trends. There is a progressive trend in the degree of fusion of the filament(s) and staminode(s) to the gynoecium. Secondly, there is a reduction in the number of fertile anthers. Finally, there is a progressive change in the position of the base of the anther relative to the apex of ...
Peter Bernhardt, Bernhardt Peter
exaly   +2 more sources

An updated interpretation of the androecium of the Fumariaceae

Canadian Journal of Botany, 1992
A study of the floral development of Dicentra formosa, Corydalis lutea, and Hypecoum procumbens was carried out to better understand the nature of the androecium in Fumariaceae. Sepals emerge successively in a median position and are followed by two alternating pairs of petals. Four stamen primordia are formed in a diagonal position. They are promptly
L P Ronse Decraene, Erik Smets
exaly   +2 more sources

Androecium and floral nectaries ofHarungana madagascariensis (Clusiaceae)

Plant Systematics and Evolution, 1991
The mature flower ofHarungana madagascariensis (Choisy)Poir. has an androecium of five antipetalous fascicles, consisting of four stamens each. The stamen fascicles alternate with five indented nectary scales. A SEM-study of the floral development, as well as a study of the floral anatomy was carried out to understand whether the nectariferous scales ...
L P Ronse Decraene, Erik Smets
exaly   +2 more sources

Pseudodiplostemony, and its implications for the evolution of the androecium in the Caryophyllaceae

Journal of Plant Research, 1998
The androecium of the Caryophyllaceae is varied, ranging from a two-whorled condition to a single stamen. A number of species belonging to the three subfamilies, Caryophyl-loideae, Alsinoideae and Paronychioideae have been studied ontogenetically with the SEM to understand their peculiar androecial development in the broader context of the ...
Louis P Ronse Decraene, Erik Smets, Smets Erik F   +2 more
exaly   +2 more sources

Evolution of the androecium in the Ranunculiflorae

, 1995
Four different evolutionary lines can be recognised for the androecium of the Ranunculiflorae: (1) a progressive reduction in the number of stamens and stamen whorls. (2) The transformation of the outermost stamens into nectar-leaves or petals. (3) Meristic changes of the flower. (4) Secondary increases in the number of stamens.
L. P. Ronse Decraene, E. F. Smets
openaire   +2 more sources

Development of the hypanthium and androecium in South American Myrtoideae (Myrtaceae)

New Zealand Journal of Botany, 2003
Abstract Floral organogeny and development are described for three species of South American Myrtoideae: Acca sellowiana, Luma apiculata, and Ugni molinae.
David A Orlovich
exaly   +2 more sources

Dédoublement revisited: towards a renewed interpretation of the androecium of the Magnoliophytina

Botanical Journal of the Linnean Society, 1993
Abstract There has been much controversy about dedoublement in the past. Dedoublement was originally described as a process of doubling of a (stamen) primordium up to two equivalent primordia. Later, it was extended to explain occurrences of higher stamen numbers, even without evidence of a division.
Erik Smets, Smets Erik F
exaly   +3 more sources

Development of the hypanthium and androecium in New Zealand Myrtoideae (Myrtaceae)

New Zealand Journal of Botany, 2002
Abstract Floral organogeny and stamen development are described for three species of New Zealand Myrtoideae not examined previously: Lophomyrtus bullata, L. obcordata, and Neomyrtus pedunculata. The flowers have numerous stamens, which
David A Orlovich
exaly   +2 more sources

Comparative Floral Development and Androecium Structure in Malvoideae (Malvaceae s.l.)

International Journal of Plant Sciences, 2004
Floral development and androecium structure were studied in eight genera of the Malvoideae (Malvaceae s.l.). All core Malvoideae (Malvaceae s.s.) share a uniform pattern of floral development and have several characteristic androecium structures in common.
William S Alverson, Jürg Schönenberger, David A Baum   +2 more
exaly   +2 more sources