Palinología de los géneros &lt;i&gt;Tarasa&lt;/i&gt; y &lt;i&gt;Wissadula&lt;/i&gt; (Malvaceae, Malveae) de Argentina

Cuadrado, Graciela Ana; Boilini, Ángel Ramón Miño

doi:10.30972/bon.153-4112

Cited by 4 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These genera were similar to Wissadula in pollen size and ornamentation (spinose) but differed in aperture number. Cuadrado and Boilini (2006)…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Palynotaxonomy of Wissadula Medik. (Malvaceae: Malvoideae) in Brazil

Alves,

Bovini,

Mendonça

et al. 2023

Preprint

View full text Add to dashboard Cite

Malvaceae is divided into nine subfamilies, one of which is Malvoideae. WissadulaMedik., a genus within the Malvoideae, is divided into two sections according to mericarp morphology and the number of ovules per locule. Species belonging to the section Euwissadula have 3 or rarely 2 ovules, whereas species belonging to the section Wissada have a single ovule. In Brazil, 19 species are recorded under the two sections, including a single species (Wissadula stipulata Bovini) in section Euwissadula and 18 species in section Wissada. This study analyzed pollen grains from both sections of Wissadula with the aim of confirming or not the existence of these sections based on pollen morphology. All 19 taxa occurring in Brazil were analyzed. The botanical material was collected from exsiccatae deposited in national herbaria and subjected to the acetolysis method. Subsequently, slides were prepared, examined under light microscopy, and photomicrographed. Pollen grains are shed as monads, isopolar, large, suboblate, and triporate. The polar area is small in most species and large in a few others. The exine is thick, with echinate ornamentation, granules, and perforations. It was possible to distinguish the analyzed species on the basis of pollen diameters and spine characteristics (dimensions and distance). The findings showed that the pollen grains of species belonging to the two sections of Wissadulaare very similar in size, shape, aperture type, aperture number, and sexine ornamentation.

show abstract

“…These genera were similar to Wissadula in pollen size and ornamentation (spinose) but differed in aperture number. Cuadrado and Boilini (2006)…”

Section: Discussionmentioning

confidence: 99%

“…Palynological studies on the genus Wissadula are scarce. The only investigation on the topic is that of Cuadrado and Boilini (2006), who analyzed 10 species of the genus and compared it to Tarasa Phil.…”

Section: Introductionmentioning

confidence: 99%