Structure and development of flowers in<i>Lepidagathis</i>and implications for systematics of the genus and floral evolution in Acanthaceae

Hirao, Yasmin Vidal; Monteiro, Mariana Maciel; Demarco, Diego

doi:10.1093/botlinnean/boy076

Cited by 4 publications

(1 citation statement)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As described by (Nees 1832) Lepidagathis is distinguished by a ve-partite calyx with the upper segment larger than the others and bract-like, a bilabiate corolla, didynamous stamens, bithecous anthers, a capsule with a membranous wall, and a hard septum. Additionally, short spikes with simple, lateral branches forming glomerules and bracts spirally arranged are present (Hirao et al 2019). In more recent studies, Lepidagathis has been described to have prolate, tricolporate, coarsely reticulate pollen; frequently zygomorphic, 5-lobed or occasionally 4-lobed calyces; bilabiate corollas with a hooded upper lip; and an androecium with four bithecous stamens, or two bithecous with two monothecous stamens, or two bithecous stamens and two staminodes (Kameyama 2008 Lepidagathis has been used as a traditional medicine (Ahirwar and Ahirwar 2021) in various cultures mostly in India.…”

Section: )mentioning

confidence: 99%

Molecular phylogeny of Lepidagathis sensu lato with notes on its biogeography and subgenus Lophostachys

Agarwala,

Somani,

Raveendran

et al. 2023

Preprint

View full text Add to dashboard Cite

Lepidagathis Willd., a genus belonging to the family Acanthaceae, is present pantropically and consists of about 151 species. Classification of Lepidagathis and Lophostachys has been under debate for a long period. Earlier, they were separated based on their distribution and morphology. However, according to Benoist 1911, the morphological differences were very slight; hence, both were considered under the genus Lepidagathis. Molecular analysis is the most effective method to clear up taxonomic issues, but more data is needed regarding Lepidagathis and Lophostachys. Lepidagathis cristata, the type species of this genus, has no molecular sequences available. Therefore, the purpose of this study was to sequence several plastid markers, which are frequently employed for the phylogeny of Acanthaceae and species DNA barcoding. Subsequently, phylogenetic trees using Bayesian and maximum likelihood bootstrap methods were built. The predominantly Asian species formed a clade which we characterize as Lepidagathis s.s was found monophyletic with strong Bayesian posterior probability support as well as good maximum-likelihood bootstrap support. Lepidagathis s.s was sister to another well-supported clade consisting of the genus Lophostachys. This phylogenetic study, along with the biogeographical distribution proves that Lepidagathis and Lophostachys are independently evolving clades, which can be treated as different subgenera.

show abstract

Section: )mentioning

confidence: 99%