Cuticular Patterns on Stylar Hairs in Asteraceae: a New Micromorphological Feature

Abstract

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Microstructural and histochemical analysis of aboveground organs of Centaurea cyanus used in herbal medicine

“…A longitudinal cuticular pattern was detected on the stylar and filament hairs in the C. cyanus flowers. Our observations are in agreement with the data on the cuticular pattern on stylar hairs reported by Erbar and Leins (2015) for the Cardueae tribe. The longitudinal pattern on stylar hairs is observed in Asteraceae relatively frequently; for instance, Erbar and Leins (2015) have described this trait in 17 of all the 44 tribes.…”

“…A new micromorphological feature, i.e. cuticular patterns on stylar hairs, was observed in members of all tribes (44) of the Asteraceae family (Erbar and Leins 2015). The authors of those studies reported five types of cuticular striation: crested, triple, double, longitudinal and transverse patterns.…”

Taxonomic Revision of Kaunia (Eupatorieae, Asteraceae), an Andean Genus with Presence in Eastern South America

“…The style appendages are papillose on both sides with densely, longitudinally striate cells (Fig. 3D), similar to those commonly found in other genera of Eupatorieae (Erbar & Leins, 2015).…”

Systematics value of micromorphological and palynological characters in Stenocephalum Sch.Bip. (Vernonieae, Asteraceae)

“…Stuessy et al (1996) suggested that apical appendages would be an adaptation to protect the pollen from humidity and insect predators, until the stigma and style push it up for pollen presentation. Recently, Erbar and Leins (2015) proposed the same function for the cuticular striation observed on the stylar hairs. Therefore, anther structures and the cuticular striation of the stylar hairs would seem to be related to the increase in the repellence of water drops in the florets.…”