Taxonomic revision of the genus Schaueria (Acanthaceae)

Côrtes, Ana Luiza Andrade; Daniel, Thomas F.; Rapini, Alessandro

doi:10.1007/s00606-016-1301-y

Cited by 8 publications

(13 citation statements)

References 19 publications

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“…The genus Schaueria Nees (1839: 3) was originally described from the forests of eastern Brazil, and is best known for the species S. calytricha (Hook.) A.L.A.Côrtes ("golden plume"), which is popular in botanical gardens (Côrtes et al 2016). Schaueria is a member of the "Tetramerium lineage" of the tribe Justicieae (Daniel et al 2008;Côrtes et al 2016;McDade et al 2018).…”

Section: Schaueria Populifoliamentioning

confidence: 99%

“…A.L.A.Côrtes ("golden plume"), which is popular in botanical gardens (Côrtes et al 2016). Schaueria is a member of the "Tetramerium lineage" of the tribe Justicieae (Daniel et al 2008;Côrtes et al 2016;McDade et al 2018). The genus is exclusively New World (NW) in distribution with the notable exception of S. populifolia C.B.…”

Section: Schaueria Populifoliamentioning

confidence: 99%

“…Considerable progress has been made in the last 20 years in understanding this, the largest of the major lineages of Acanthaceae. However, recent phylogenetic work (e.g., Kiel et al 2006Kiel et al , 2017Daniel et al 2008;McDade et al 2000McDade et al , 2018, as well as floristic and taxonomic research (e.g., Côrtes et al 2016;Daniel 1995aDaniel , 2015Daniel , 2017Darbyshire & Govaerts 2017;Darbyshire & Goyder 2019), has pointed to a number of outstanding problems that require resolution. Here, we propose solutions for two such taxonomic problems involving the African plants Schaueria populifolia C.B.Clarke and Rhinacanthus ndorensis Schweinf.…”

Section: Introductionmentioning

confidence: 99%

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Two new genera of Acanthaceae from tropical Africa

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DNA sequence data, macro-morphological evidence and pollen analysis are used to clarify the phylogenetic placement of two African species of Acanthaceae: Schaueria populifolia C.B.Clarke and Rhinacanthus ndorensis Schweinf. The combined data demonstrate that these species are only distantly related to the genera in which they are currently placed and provide strong support for recognition of new genera to accommodate them. Two new genera are therefore proposed and a taxonomic account is provided for each of these. The first, Champluviera I.Darbysh., T.F.Daniel & C.A.Kiel, is based primarily on S. populifolia but Chlamydocardia nuda C.B.Clarke (= Justicia tigrina Heine) is also included within this new genus based on shared morphological traits, at least one of which is synapomorphic and restricted to these species. Based on molecular evidence, Champluviera is placed in a well-supported clade of several genera that are together sister to the core Isoglossinae lineage of tribe Justicieae. The genus may be recognised morphologically by the combination of a dense spiciform terminal thyrse with the bracts, bracteoles and calyx lobes all slender and closely resembling one another; a bilabiate corolla lacking a rugula and with intricate speckling or striping on the lips; and, in particular, the putatively synapomorphic trait of anther thecae with broad, flattened, basal appendages that have an irregularly toothed fringe. The second new genus, Kenyacanthus I.Darbysh. & C.A.Kiel, is based on R. ndorensis and is so far thought to be monospecific. It is placed between core Diclipterinae and Monechma Group II within the expanded subtribe Diclipterinae in tribe Justicieae. Kenyacanthus can be recognised morphologically by having the combination of a trailing or procumbent habit; fasciculate inflorescences; bracts, bracteoles and calyces with hyaline margins; a bilabiate corolla with a slender cylindrical tube longer than the limb and with a shallow rugula; stenotribic flowers, with the stamens held against the lower lip; and anthers with only slightly offset thecae that lack appendages.

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Section: Schaueria Populifoliamentioning

confidence: 99%

Section: Schaueria Populifoliamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Two new genera of Acanthaceae from tropical Africa

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“…Schaueria é um gênero monofilético endêmico da Floresta Atlântica brasileira, que reúne 13 espécies distribuídas da Bahia ao Rio Grande do Sul (Côrtes et al 2016). São plantas arbustivas a subarbustivas, caracterizadas pelas bráctea, bractéolas e segmentos do cálice filiformes, a corola branca a amarela bilabiada, com lábio superior comumente inteiro a bilobado, ereto ou inflexo, e o lábio inferior trilobado, os estames exsertos e as anteras bitecas com tecas paralelas, iguais, múticas, e estaminódios ausentes Arbustos, ca.…”

Section: Schaueria Neesunclassified

“…½ compr., porção seminal esferoidal, castanho. Schaueria litoralis ocorre no Rio de Janeiro, Espírito Santo, Minas Gerais e São Paulo e, na Bahia, é conhecida apenas pelo material tipo (Côrtes et al 2016). É uma planta subarbustiva com inflorescência terminal de brácteas, bractéolas e cálice subulados, verdes, e corola branca com cerca de 2 cm de comprimento.…”

Section: Schaueria Neesunclassified

Acanthaceae da Marambaia, Estado do Rio de Janeiro, Brasil

Braz

Azevedo

2016

Hoehnea

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-(Acanthaceae of Marambaia, State of Rio de Janeiro, Brazil). This work consists of the taxonomic treatment of the Acanthaceae Juss. in Marambaia, State of Rio de Janeiro, Brazil, and their distribution in the different local plant communities. Five genera and nine species were found in mangrove, sand coastal plains (restingas), rain forest, and in urban areas. Thunbergia alata is introduced and widely naturalized throughout Brazil, and Ruellia blechum is a neotropical species also naturalized; the other species are native: Avicennia schaueriana, Aphelandra longiflora, Justicia brasiliana, J. cydoniifolia, J. plumbaginifolia, Ruellia solitaria, and Schaueria litoralis. Keys to species, descriptions, illustrations, comments on taxonomy, and their distribution in the local plant communities, in other restingas in Rio de Janeiro State, and in Brazil are provided. The species of Acanthaceae in Marambaia are important resources for different groups of pollinators and include typical (Justicia brasiliana, J. cydoniifolia) and exclusive (Schaueria litoralis) species of the restinga; these species plus Avicennia schaueriana are threatened in Rio de Janeiro State. Keywords: Atlantic forest, mangrove, sand coastal plains, taxonomy, threatened species RESUMO -(Acanthaceae da Marambaia, Estado do Rio de Janeiro, Brasil). Este trabalho consiste do tratamento taxonômico das Acanthaceae Juss. na Marambaia, Estado do Rio de Janeiro, e sua distribuição nas diferentes formações vegetais locais. Foram constatados cinco gêneros e nove espécies encontradas nos manguezais, na restinga e na floresta ombrófila, além de áreas urbanizadas. Thunbergia alata é introduzida e amplamente naturalizada no Brasil inteiro e Ruellia blechum é uma espécie neotropical também naturalizada; as demais espécies (Avicennia schaueriana, Aphelandra longiflora, Justicia brasiliana, J. cydoniifolia, J. plumbaginifolia, Ruellia solitaria e Schaueria litoralis) são nativas. São apresentadas chave de identificação, descrições, ilustrações, comentários taxonômicos e a ocorrência nas formações vegetais locais, em outras restingas fluminenses e no Brasil. As espécies de Acanthaceae da Marambaia são recursos importantes para diferentes grupos de polinizadores e reúnem espécies típicas (Justicia brasiliana, J. cydoniifolia) e exclusivas (Schaueria litoralis) das restingas; essas espécies, juntamente com Avicennia schaueriana, são ameaçadas de extinção na flora fluminense.

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Revised classification of Acanthaceae and worldwide dichotomous keys

Tripp

Darbyshire

Daniel

et al. 2021

TAXON

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Acanthaceae are among the most taxonomically diverse, geographically widespread, and morphologically and ecologically variable lineages of flowering plants. Most modern workers have estimated more than 4000 species and potentially more than 5000 species worldwide, thus placing Acanthaceae among the 12 or so most diverse families of angiosperms. This diversity is marked by exceptional morphological variation, particularly with respect to floral forms, growth forms, and pollen types. The present work represents a synthesis of knowledge generated over the past two decades on the taxonomy and systematics of this complex plant family. We place all 191 accepted genera within a revised classification of the family. Dichotomous keys (nine in total) to recognize the major lineages of Acanthaceae are presented together with geographically partitioned keys to all genera, covering (a) Africa, Madagascar, the Mediterranean region, and Arabia; (b) Asia and Australasia; and (c) the Americas. Finally, we validate several new tribes, subtribes, and genera, and provide new combinations for species where generic delimitation has changed. Our hope is that the present contribution serves to benefit future research on the systematics of Acanthaceae and provides a foundation upon which future classification efforts can be built.

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Taxonomic revision of the genus Schaueria (Acanthaceae)

Cited by 8 publications

References 19 publications

Two new genera of Acanthaceae from tropical Africa

Two new genera of Acanthaceae from tropical Africa

Acanthaceae da Marambaia, Estado do Rio de Janeiro, Brasil

Revised classification of Acanthaceae and worldwide dichotomous keys

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