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

IF 1.5 3区生物学 Q3 PLANT SCIENCES

PhytoKeys Pub Date : 2025-06-17 eCollection Date: 2025-01-01 DOI:10.3897/phytokeys.259.155606

Xinyu Chen, Zhixi Fu

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Abstract

Recent molecular phylogenetic studies have demonstrated extensive paraphyly of Asterser.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 Asterser.Albescentes. A total of 19 new combinations are proposed, e.g., Homostyliumalbescens (DC.) Z.X.Fu, comb. nov. (incl. 10 varieties), Homostyliumargyropholium (Hand.-Mazz.) Z.X.Fu, comb. nov. (incl. 2 varieties), Homostyliumfulgidulum (Grierson) Z.X.Fu, comb. nov., Homostyliumhypoleucum (Hand.-Mazz.) Z.X.Fu, comb. nov., Homostyliumlavandulifolium (Hand.-Mazz.) Z.X.Fu, comb. nov., Homostyliummotuoense (Y.L.Chen) Z.X.Fu, comb. nov., and Homostyliumpolium (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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同源花柱属Resurrection为前紫菀属。菊苣属（菊科，菊科），附最新的属类概要。

最近的分子系统发育研究证实了Asterser的广泛泛系。漂白的Y.Ling。这个以木材为基础的灌木类群在形态和分子上都与紫菀属不同。该系列的特点是具有多枝的灌木习性，茎生叶具有旋转或平坦的边缘，辐射状头状花序，龙骨状叶和多神经瘦果。我们重新定义了一个更自然的界限，这个系列的恢复同花柱属Nees与命名优先权。本文介绍了该系列的分类摘要。同花柱属（Homostylium）被认为是一个独特的属（菊科，菊科），包含7种灌木植物（其中6种是中国特有的）。共提出了19个新组合，如Homostyliumalbescens （DC.）。Z.X.Fu,梳子。11月（包括10个品种），同花柱umargyropholium （Hand.-Mazz.）Z.X.Fu,梳子。11月（包括2个变种），同花柱状花序（Grierson），傅志贤，梳子。11 .，同花柱属植物（hand . mazz .）Z.X.Fu,梳子。11月，同花柱薰衣草和百合（hand . mazz .）Z.X.Fu,梳子。11 .，同质花柱：（陈玉林）傅志新，梳。11月，和Homostyliumpolium （C.K.Schneid.）Z.X.Fu,梳子。11 .本文还提供了同柱属植物的正式分类、同义词、插图、分布图和鉴定钥匙。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

PhytoKeys PLANT SCIENCES-

CiteScore

2.60

自引率

14.30%

发文量

189

审稿时长

6 weeks

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

Abstract

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