Structure and ontogeny of inflorescence and flower of Bactris acanthocarpoides Barb. Rodr. and Bactris hirta Mart. (Arecaceae, Arecoideae, Bactridinae)

Briceño, Abelardo Morales; Mendonça, Maria Sílvia de; Jáuregui, Damelis

doi:10.1016/j.flora.2023.152347

Cited by 2 publications

(13 citation statements)

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“…The development and structure of the androecium is very similar to that indicated in other species of the genus (Briceño et al 2023). A difference observed is the centripetal development of the fertile whorls of the staminate owers, in relation to other species of the genus, where it occurs centrifugally (Briceño et al 2023).…”

Section: Discussionsupporting

confidence: 69%

“…and B. hirta Mart. therefore, the hypothesis that this character constitutes a synapomorphy for the Bactridineae subtribe is reinforced (Briceño et al 2023). The observed adnation is considered congenital, taking into account what was indicated by Sokoloff et al (2018).…”

Section: Discussionmentioning

confidence: 80%

“…The stigmatic lobes are reduced, when compared with those of the other Bactris species (Briceño et al 2023); it is necessary to specify the variation of this trait in other taxa to establish its usefulness at the infrageneric level.…”

Section: Discussionmentioning

confidence: 99%

“…The variation in the contour of the staminal lament and the presence of sculptures are unseen characters in other Bactris species (Briceño et al 2023), so they may be traits of taxonomic interest. In palms, the use of these traits in taxonomy has not been explored, but various morphoanatomical traits of the stamens have been useful to distinguish Nothofagus Blume (Rozefelds 1998) and Dyckia Scult species.…”

Section: Discussionmentioning

confidence: 99%

“…Bactris is one of the most important taxa within the Arecaceae, since it is the second largest genus, and it is a very diverse taxon in shapes and sizes, as well as in its ecology (Galeano and Bernal 2010). Its oristic importance in the Neotropics is recognized; however, it presents numerous nomenclatural problems, the phylogenetic analyzes with molecular data carried out so far have low resolution and morphological data is needed to support the construction of a correct infrageneric classi cation (Briceño et al 2023).…”

Section: Introductionmentioning

confidence: 99%

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Structure and ontogeny of inflorescence and flower of Bactris simplicifrons Mart. (Arecaceae, Arecoideae, Bactridinae)

Hidalgo,

de Mendonça,

Jáuregui

2023

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The paper investigates the ontogeny and morphoanatomy of flowers and inflorescences of Bactris simplicifrons Mart. The objective was to provide useful biological information and add features that may be of interest in the taxonomy of the genus. To achieve this, we use light and scanning electron microscopy. The ontogenetic study reveals the acropetal development of the inflorescences, as well as the formation of one subtending bract for each flower of the triad and one for each triad, the latter being connate. Similarly, the sequence of centripetal development of the flower parts and the formation of the gynoecium were evident, synascidiate at the base, symplicate at the top and assimplicate at the apex. Additionally, the histological arrangement of each floral organ was characterized and all the appendages observed were described. The characters of possible diagnostic value are: length of stigmatic lobes, indumentum and morphology of trichomes, absence of rigid emergence, content of phenolic compounds, morphology of the staminal filament, among others.

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Section: Discussionsupporting

confidence: 69%

Section: Discussionmentioning

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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