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A pistillode is present in male flowers of some taxa. The gynoecium of female flowers consists of a single pistil with a superior ovary with locule and carpel 1 (by reduction, often termed “pseudomonomerous”; rarely 2).
18 lut 2020 · This test identified three distinct classes: abaxial staminode cell counts (a), adaxial staminode cell counts (b) and the two stamen cell counts (c). The two staminode classes are significantly different at P < 0.05 while the staminode vs. the stamen classes were significantly different at P < 0.01.
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.
Although it can be difficult to distinguish staminodes as homologous to male or female parts at the macroscopic level, the term staminode suggests a homology closely related to stamens. ...
1 paź 2000 · With the loss of their defining function as producers of viable male gametophytes, stamens become staminodes. Staminodes are relatively uncommon, but widely distributed taxonomically, occurring in at least one species in 32.5% of angiosperm families and 54.4% of angiosperm genera.
This study presents a detailed descriptive account of staminodes in the Cactaceae, specically the Plains Prickly Pear, Opuntia polyacantha Haw., a species with both regular (lacking staminodes) and staminodial owers.
29 lis 2006 · In this survey of petal and staminode elaborations throughout the eudicots, based on both new studies and a review of the literature, the diversity of such structures and their functions is discussed. Petal elaborations are primarily present as marginal lobes and ventral lobes of various shapes.
