Endocarp Morphology of (Lamiaceae) in Thailand and Its Taxonomic Significance.

Fruits and endocarps of 21 species within the genus (Lamiaceae) in Thailand were examined using light (LM) and scanning electron microscopy (SEM) to evaluate taxonomic relevance. Overall, mature fruits were classified into two types: fully developed mericarp (fruit type I) and partly developed mericarp (fruit type II), with three shape patterns: broadly obovoid, narrowly obovoid, and clavoid. Fruit size ranged from 1.

Rapid Radiation of a Plant Lineage Sheds Light on the Assembly of Dry Valley Biomes.

Southwest China is characterized by high plateaus, large mountain systems, and deeply incised dry valleys formed by major rivers and their tributaries. Despite the considerable attention given to alpine plant radiations in this region, the timing and mode of diversification of the numerous dry valley plant lineages remain unknown. To address this knowledge gap, we investigated the macroevolution of Isodon (Lamiaceae), a lineage commonly distributed in the dry valleys in southwest China and wetter areas of Asia and Africa.

Three new species of (Nepetoideae, Lamiaceae) from China.

Three new species of (Lamiaceae) from China are described and illustrated, based on both morphological evidence and our recent phylogenomic studies of the genus. , a herbaceous new species known only from the Fanjing Mountain, is shown to be sister to , but they can be easily distinguished by leaf and inflorescence indumentum, calyx teeth shape and corolla tube morphology. , a herbaceous new species collected from the Hengduan Mountains in southwest China, represents a distinct lineage within the genus.

The genus (Lamiaceae) in Central Africa (Democratic Republic of the Congo, Rwanda, Burundi), with the description of 15 new species.

The genus is revised for DR. Congo, Rwanda, Burundi, based on herbarium taxonomy. Ninety-five taxa are reported (89 species, 1 subspecies, 5 varieties).

Using scanning electron microscopy and molecular data to discover a new species from old herbarium collections: The case of (Lamiaceae, Lamioideae).

is one of the largest genera of Lamiaceae with approximately 150-170 species distributed mainly in Eurasia. In this study, we describe and illustrate a new species, , which was previously misidentified as , from Yunnan Province, southwest China. Molecular phylogenetic analyses revealed that is found within a clade in which most species lack basal leaves.

New species of (Apocynaceae), (Leguminosae), (Bixaceae) and (Lamiaceae) from the Kalahari sands of Angola and NW Zambia, with one new combination in (Rubiaceae).

Four new species are described from central and eastern Angola and adjacent NW Zambia. All occur in Kalahari sand savannas rich in endemic and more widely distributed geoxylic suffrutices. Despite being known from very few collections, the conservation status of one of these new species is assessed as Least Concern, as these grasslands are nutrient-poor, are in remote sparsely populated areas, and are not threatened with conversion to agriculture.

Plastome sequences fail to resolve shallow level relationships within the rapidly radiated genus (Lamiaceae).

As one of the largest genera of Lamiaceae and of great medicinal importance, is also phylogenetically and taxonomically recalcitrant largely ascribed to its recent rapid radiation in the Hengduan Mountains. Previous molecular phylogenetic studies using limited loci have only successfully resolved the backbone topology of the genus, but the interspecific relationships suffered from low resolution, especially within the largest clade (Clade IV) which comprises over 80% species. In this study, we attempted to further elucidate the phylogenetic relationships within especially Clade IV using plastome sequences with a broad taxon sampling of ca.

Differences in diterpenoid diversity reveal new evidence for separating the genus from .

Covering: up to 2019The large and medicinally important tropical plant genus (Lamiaceae) was recently split into three separate genera on the basis of molecular and morphological evidence; , and . We found striking differences between the diterpenoids which strongly support this taxonomic split. is characterised by abietanes oxygenated at C-14 such as royleanones, spirocoleons and acylhydroquinones, which could be useful chemotaxonomic markers to distinguish this genus from In contrast, the abietanes in lack C-14 oxygenation, but are often acylated with unusual acids.

(Lamiaceae, Nepetoideae), a new species from the Sino-Vietnamese border.

is a genus of eight herbaceous species previously thought to be endemic to southern China. However, , a new species described here from China and Vietnam, differs from all other species of by its subshrubby habit. It is also distinct in its shallowly bicrenate laminae and densely purplish glandular puberulent inflorescences.

Nomenclatural changes in and (Lamiaceae): a tale of more than two genera.

A synopsis of the genera Lour, A.J.Paton, Mwany.

Plectranthus: a review of ethnobotanical uses.

Plectranthus is a large and widespread genus with a diversity of ethnobotanical uses. The genus is plagued with numerous nomenclatural disharmonies that make it difficult to collate accurate data on the uses. The aim of this review is to gather together all ethnobotanical information on Plectranthus and to map the data onto the most up-to-date phylogenetic classification in order to see if there are similar uses among related species and hence provide a framework for the prediction and exploration of new uses of species.

Phylogeny and evolution of basils and allies (Ocimeae, Labiatae) based on three plastid DNA regions.

A phylogeny of basils and allies (Lamiaceae, tribe Ocimeae) based on sequences of the trnL intron, trnL-trnF intergene spacer and rps 16 intron of the plastid genome is presented. Several methods were used to reconstruct phylogenies and to assess statistical support for clades: maximum parsimony with equally and successively weighted characters, bootstrap resampling, and Bayesian inference. The phylogeny is used to investigate the distribution of morphological, pericarp anatomy, chemical, and pollen characters as well as the geographical distribution of the clades.

The chemotaxonomic significance of two bioactive caffeic acid esters, nepetoidins A and B, in the Lamiaceae.

A survey of leaf surface constituents in the family Lamiaceae using HPLC with diode array detection revealed the presence of two characteristic phenolic compounds in many species. The distribution of these phenolics in the Lamiaceae was found to be of taxonomic significance, as they were present in the great majority of species investigated for the subfamily Nepetoideae, including representatives of the well-known genera of culinary herbs, mint, rosemary, sage, thyme and basil. In contrast, they were absent from species of the other subfamilies of Lamiaceae studied and from the related families Verbenaceae, Scrophulariaceae, Acanthaceae and Buddlejaceae.

Chemical profiling of Ocimum americanum using external flavonoids.

A HPLC survey was undertaken of the external flavonoids in 111 herbarium specimens of Ocimum americanum L. (O. canum Sims), which were largely collected from their natural habitats throughout Africa and Asia.

Scutellarein 4'-methyl ether glycosides as taxonomic markers in Teucridium and Tripora (Lamiaceae, Ajugoideae).

The flavonoid profiles of two monotypic genera, Teucridium and Tripora, have been studied by analytical methods. These genera were formerly placed in the Verbenaceae, but are now classified in the Lamiaceae, subfamily Ajugoideae. The major flavonoids of both genera were identified as glycosides of scutellarein 4'-methyl ether (5,6,7-trihydroxy-4'methoxyflavone) and acacetin (5,7-dihydroxy-4'-methoxyflavone).