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Stamens initiate as primordia from the flower apical meristem, but at maturity are attached to the receptacle, corolla (having an epipetalous stamen fusion; see below), hypanthium rim, or staminal disk, a fleshy, elevated, often nectariferous cushion of tissue.
This article aims to discuss the shortcomings of the past and current approach of staminodes and proposes definitions of staminode types for use as characters in phylogenetic analyses. Staminodial structures should be classified according to their position and function in the flower.
…a petal-like blade called a staminode (in the same manner that a sepal forms a petal-like blade in some flowers without true petals). The apparent petals in some angiosperm families, such as are found in many members of the pink family (Caryophyllaceae), are staminodial in origin.
1 paź 2000 · Abstract. Stamens that have lost their primary function of pollen production, or staminodes, occur uncommonly within angiosperms, but frequently fulfill important secondary floral functions. The phylogenetic distribution of staminodes suggests that they typically arise during evolutionary reduction of the androecium.
TLDR. This study presents the first morphological overview of staminodes in the Cactaceae, rendering a wider perception of the variability in patterns of floral parts in this plant group and broadening the meaning of the term staminode is discussed along with the putative origin of these appendages. Expand. 2 Excerpts.
The phylogenetic distribution of staminodes suggests that they typically arise during evolutionary reduction of the androecium. Differences in the genetic control and patterns of stamen loss between actinomorphic and zygomorphic flowers shape staminode development.
