Resurrection of the genus Homostylium Nees for the former Aster ser. Albescentes Y.Ling (Astereae, Asteraceae), with an updated generic synopsis

Recent molecular phylogenetic studies have demonstrated extensive paraphyly of Aster ser. Albescentes Y.Ling. This woody-based shrubby group is both morphologically and molecularly distinct from the genus Aster L. The series is characterized by its shrubby habit with multiple branches, cauline leave...

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Main Authors: Xinyu Chen, Zhixi Fu
Format: Article
Language:English
Published: Pensoft Publishers 2025-06-01
Series:PhytoKeys
Online Access:https://phytokeys.pensoft.net/article/155606/download/pdf/
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author Xinyu Chen
Zhixi Fu
author_facet Xinyu Chen
Zhixi Fu
author_sort Xinyu Chen
collection DOAJ
description Recent molecular phylogenetic studies have demonstrated extensive paraphyly of Aster ser. Albescentes Y.Ling. This woody-based shrubby group is both morphologically and molecularly distinct from the genus Aster L. The series is characterized by its shrubby habit with multiple branches, cauline leaves with revolute or flat margins, radiate capitula, keeled phyllaries, and multinerved achenes. We redefine a more natural circumscription of this series by reinstating Homostylium Nees with nomenclatural priority. A taxonomic synopsis of this series is presented herein. Homostylium is recognized and described as a distinct genus (Astereae, Asteraceae) to accommodate 7 shrubby species (6 endemic to China) formerly placed in Aster ser. Albescentes. A total of 19 new combinations are proposed, e.g., Homostylium albescens (DC.) Z.X.Fu, comb. nov. (incl. 10 varieties), Homostylium argyropholium (Hand.-Mazz.) Z.X.Fu, comb. nov. (incl. 2 varieties), Homostylium fulgidulum (Grierson) Z.X.Fu, comb. nov., Homostylium hypoleucum (Hand.-Mazz.) Z.X.Fu, comb. nov., Homostylium lavandulifolium (Hand.-Mazz.) Z.X.Fu, comb. nov., Homostylium motuoense (Y.L.Chen) Z.X.Fu, comb. nov., and Homostylium polium (C.K.Schneid.) Z.X.Fu, comb. nov. Formal typifications, synonyms, illustrations, distribution maps, and an identification key to the species of Homostylium are also provided herein.
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spelling doaj-art-d1745a7baa5f4cd780ccfd1aa02c7d972025-08-20T02:36:59ZengPensoft PublishersPhytoKeys1314-20032025-06-01259276610.3897/phytokeys.259.155606155606Resurrection of the genus Homostylium Nees for the former Aster ser. Albescentes Y.Ling (Astereae, Asteraceae), with an updated generic synopsisXinyu Chen0Zhixi Fu1Sichuan Normal UniversityInstitute of Botany, Chinese Academy of SciencesRecent molecular phylogenetic studies have demonstrated extensive paraphyly of Aster ser. Albescentes Y.Ling. This woody-based shrubby group is both morphologically and molecularly distinct from the genus Aster L. The series is characterized by its shrubby habit with multiple branches, cauline leaves with revolute or flat margins, radiate capitula, keeled phyllaries, and multinerved achenes. We redefine a more natural circumscription of this series by reinstating Homostylium Nees with nomenclatural priority. A taxonomic synopsis of this series is presented herein. Homostylium is recognized and described as a distinct genus (Astereae, Asteraceae) to accommodate 7 shrubby species (6 endemic to China) formerly placed in Aster ser. Albescentes. A total of 19 new combinations are proposed, e.g., Homostylium albescens (DC.) Z.X.Fu, comb. nov. (incl. 10 varieties), Homostylium argyropholium (Hand.-Mazz.) Z.X.Fu, comb. nov. (incl. 2 varieties), Homostylium fulgidulum (Grierson) Z.X.Fu, comb. nov., Homostylium hypoleucum (Hand.-Mazz.) Z.X.Fu, comb. nov., Homostylium lavandulifolium (Hand.-Mazz.) Z.X.Fu, comb. nov., Homostylium motuoense (Y.L.Chen) Z.X.Fu, comb. nov., and Homostylium polium (C.K.Schneid.) Z.X.Fu, comb. nov. Formal typifications, synonyms, illustrations, distribution maps, and an identification key to the species of Homostylium are also provided herein.https://phytokeys.pensoft.net/article/155606/download/pdf/
spellingShingle Xinyu Chen
Zhixi Fu
Resurrection of the genus Homostylium Nees for the former Aster ser. Albescentes Y.Ling (Astereae, Asteraceae), with an updated generic synopsis
PhytoKeys
title Resurrection of the genus Homostylium Nees for the former Aster ser. Albescentes Y.Ling (Astereae, Asteraceae), with an updated generic synopsis
title_full Resurrection of the genus Homostylium Nees for the former Aster ser. Albescentes Y.Ling (Astereae, Asteraceae), with an updated generic synopsis
title_fullStr Resurrection of the genus Homostylium Nees for the former Aster ser. Albescentes Y.Ling (Astereae, Asteraceae), with an updated generic synopsis
title_full_unstemmed Resurrection of the genus Homostylium Nees for the former Aster ser. Albescentes Y.Ling (Astereae, Asteraceae), with an updated generic synopsis
title_short Resurrection of the genus Homostylium Nees for the former Aster ser. Albescentes Y.Ling (Astereae, Asteraceae), with an updated generic synopsis
title_sort resurrection of the genus homostylium nees for the former aster ser albescentes y ling astereae asteraceae with an updated generic synopsis
url https://phytokeys.pensoft.net/article/155606/download/pdf/
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