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Articles 31 - 32 of 32
Full-Text Articles in Plant Biology
Floral Morphology And Phylogeny In The Hydrocharitaceae, Robert B. Kaul
Floral Morphology And Phylogeny In The Hydrocharitaceae, Robert B. Kaul
School of Biological Sciences: Faculty Publications
The vascular anatomy of 13 of the 15 genera of the Hydrocharitaceae has been studied, and certain aspects of floral morphology are considered. The flowers of the family show a broad range of specialized structures combined with primitive characteristics. The origin of paired and single stamens is interpreted as probable modifications of fascicled stamens. Extreme reduction in the androecium is shown for several genera. Tendencies toward reduction and fusion within the gynoecium are pronounced. Most genera are at least slightly syncarpous, but a few are apocarpous. The inferior ovary is appendicular in nature, with some genera exhibiting more complete fusion …
The Relation Of Leaf Structure To Physical Factors, Edith Schwartz Clements
The Relation Of Leaf Structure To Physical Factors, Edith Schwartz Clements
School of Biological Sciences: Faculty Publications
The leaf, as the seat of important physiological functions of the plant, and because of its modification by external factors, has long been a fruitful subject for investigation. As a rule, however, investigators have confined themselves solely to the histology and morphology of the leaf, independent of its relations to physical factors. Where the latter have been considered at all, it has been in a more or less general way, or undue importance has been assigned to one or another of the physical factors, and others have been ignored entirely. In no case have they been carefully measured. The aim …