A new concept of Leptadenia (Apocynaceae)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F23%3A43922566" target="_blank" >RIV/62156489:43210/23:43922566 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1002/tax.12827" target="_blank" >https://doi.org/10.1002/tax.12827</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/tax.12827" target="_blank" >10.1002/tax.12827</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A new concept of Leptadenia (Apocynaceae)

Popis výsledku v původním jazyce

We revise the concept of Leptadenia. The closely related, small genus Orthanthera (Ceropegieae-Asclepiadoideae-Apocynaceae) contains four species, all with tubular flowers. Our phylogenetic reconstructions show that the type of Orthanthera, namely the little-known Himalayan endemic O. viminea, is deeply nested within Leptadenia, where it is most closely related to the widespread L. pyrotechnica, a species with rotate flowers. Consequently, we deduce that the tubular flowers of Orthanthera viminea evolved separately from those in the other three species of Orthanthera, which are all from Africa south of the equator. These African species form a separate clade, which is sister to the remainder of Leptadenia. We transfer all four species of Orthanthera to Leptadenia to render Leptadenia monophyletic once more. Leptadenia consists of two subgenera: subg. Leptadenia contains the four species previously in Leptadenia and L. viminea (Orthanthera viminea); subg. Barrowia contains the three species L. albida (Orthanthera albida), L. gossweileri (O. gossweileri) and L. jasminiflora (O. jasminiflora) from Africa south of the equator. We highlight the fact that the range from flat to tubular flowers, well-known in Ceropegia, is also found in each of the three subtribes that are sister to and basal to Ceropegia. A lectotype is selected for Leptadenia and lectotypes and neotypes are selected for several names.

Název v anglickém jazyce

A new concept of Leptadenia (Apocynaceae)

Popis výsledku anglicky

We revise the concept of Leptadenia. The closely related, small genus Orthanthera (Ceropegieae-Asclepiadoideae-Apocynaceae) contains four species, all with tubular flowers. Our phylogenetic reconstructions show that the type of Orthanthera, namely the little-known Himalayan endemic O. viminea, is deeply nested within Leptadenia, where it is most closely related to the widespread L. pyrotechnica, a species with rotate flowers. Consequently, we deduce that the tubular flowers of Orthanthera viminea evolved separately from those in the other three species of Orthanthera, which are all from Africa south of the equator. These African species form a separate clade, which is sister to the remainder of Leptadenia. We transfer all four species of Orthanthera to Leptadenia to render Leptadenia monophyletic once more. Leptadenia consists of two subgenera: subg. Leptadenia contains the four species previously in Leptadenia and L. viminea (Orthanthera viminea); subg. Barrowia contains the three species L. albida (Orthanthera albida), L. gossweileri (O. gossweileri) and L. jasminiflora (O. jasminiflora) from Africa south of the equator. We highlight the fact that the range from flat to tubular flowers, well-known in Ceropegia, is also found in each of the three subtribes that are sister to and basal to Ceropegia. A lectotype is selected for Leptadenia and lectotypes and neotypes are selected for several names.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Taxon

ISSN

0040-0262

e-ISSN

1996-8175

Svazek periodika

72

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

25

Strana od-do

126-150

Kód UT WoS článku

000894024800001

EID výsledku v databázi Scopus

2-s2.0-85143979227