Radiaticorollarus, a new replacement name for
Actinostephanus (Gesneriaceae, Didymocarpoideae)
WEN Fang1,2, WEI Yigang1,2, LI Xiaojuan1,2, XIONG Chi1,2, CAI Lei3
( 1. Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous
Region and Chinese Academy of Sciences, Guilin 541006, Guangxi, China; 2. National Gesneriaceae Germplasm Resources Bank of GXIB, Gesneriad
Committee of China Wild Plant Conservation Association, Gesneriad
Conservation Center of China, Guilin Botanical Garden, Chinese Academy
of Sciences, Guilin 541006, Guangxi, China; 3. Yunnan Key Laboratory for Integrative Conservation of Plant Species with Extremely
Small Populations, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China )
Abstract: "Actinostephanus F. Wen, Y. G. Wei amp; L. F. Fu is a monotypic genus in Gesneriaceae endemic to Guangdong, China. It is named for its radiate corolla lobes, the relatively rare character among Gesneriaceae. Some scholars have suggested that the name Actinostephanus is easily confused with the generic name of the extinct fossil phytoplankton Actinostephanos Khursevich, and proposed that Actinostephanus should be treated as a later homonym of Actinostephanos. According to the International Code of Nomenclature of Algae, Fungi and Plants (Shenzhen Code) (2018), we here propose a new name Radiaticorollarus Y. G. Wei, F. Wen amp; Lei Cai for the later homonym Actinostephanus F. Wen, Y. G. Wei amp; L. F. Fu, and treat Actinostephanus enpingensis F. Wen, Y. G. Wei amp; Z. B. Xin as a synonym of the new combination Radiaticorollarus enpingensis (F. Wen, Y. G. Wei amp; Z. B. Xin) F. Wen, Y. G. Wei amp; Lei Cai.
Key words: Actinostephanus, Actinostephanus enpingensis, Gesneriaceae, new name, new combination
CLC number: "Q941
Document code: "A
Article ID: "1000-3142(2024)04-0619-02
摘"要: "輻冠苣苔屬為中國廣東特有苦苣苔科單型屬,因其具有苦苣苔科中相對比較少見的輻射狀花冠裂片而得名。有學(xué)者提出因其屬名Actinostephanus F. Wen, Y. G. Wei amp; L. F. Fu和已滅絕的化石浮游植物屬名Actinostephanos Khursevich極其相似而易于混淆,應(yīng)處理為晚出同名。依據(jù)2018年《國際藻類、菌物和植物命名法規(guī) (深圳法規(guī))》,該文為該晚出同名擬定了一個新名稱,即Radiaticorollarus Y. G. Wei, F. Wen amp; Lei Cai,并將其屬下輻冠苣苔Actinostephanus enpingensis F. Wen, Y. G. Wei amp; Z. B. Xin處理為新組合Radiaticorollarus enpingensis (F. Wen, Y. G. Wei amp; Z. B. Xin)x`F. Wen, Y. G. Wei amp; Lei Cai的異名。
關(guān)鍵詞: 輻冠苣苔屬, 輻冠苣苔, 苦苣苔科, 新名稱, 新組合
The genus Actinostephanus F. Wen, Y. G. Wei amp; L. F.Fu was named for its radiate corolla lobes, the relatively rare character among Gesneriaceae. It includes a single species, A. enpingensis F. Wen, Y. G. Wei amp; Z.B.Xin. The genus name, “Actinostephanus”, is derived from Greek, with the prefix “Actino-” coming from meaning “ray” or “radiate”) and “stephanus” from(Stéphanos, meaning “crown”). This type of corolla characteristic is rare in Chinese Gesneriaceae. Before the discovery of this new genus, only three species, belonging to two different genera, have radially spreading corollas: Bournea sinensis Oliv., B. leiophylla (W. T. Wang) W. T. Wang amp; K.Y.Pan ex W.T.Wang, and Oreocharis esquirolii H. Lév.
However, Khursevich (1989) had named a kind of extinct fossil phytoplankton Actinostephanos Khursevich (1989: 487) using a homological name. Despite the difference of a single letter between the two names, “u” and “o”, which is sufficient to differentiate them, Deshmukh (2022: 1127) believed they are extremely similar and prone to confusion and should be treated as homonyms, thus requesting a binding decision that the names Actinostephanus Wen et al. and Actinostephanos Khursevich are easily confused and should be treated as homonyms. This request was recommended by The Nomenclature Committee for Algae (Anderson, 2023) and approved by General Committee.
Therefore, according to Article 53.1 of the Interna-tional Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) (Turland et al., 2018), a new name, Radiaticorollarus Y.G.Wei, F.Wen amp; Lei Cai, is pro-posed herein for the later homonym Actinostephanus F. Wen, Y. G. Wei amp; L. F. Fu. Radiaticorollarus is com-posed of two Latin words, “Radiati-” deriving from “Radiatus”, meaning radiate, and “corollarus” from “corolla”, meaning corolla. This replacement name retains the same meaning as the original Actinostephanus, [JP4]referring to the unique species in this genus known to have a campanulate corolla tube and radially symmetrical [JP4]corolla lobes, distinct from all other known genera in China.
Taxonomic treatment
Radiaticorollarus Y. G. Wei, F. Wen amp; Lei Cai, nom. nov.
Replaced Synonym: — Actinostephanus F. Wen, Y.G.Wei amp; L. F. Fu, PhytoKeys 193: 95, 2022, nom. illeg., non Actinostephanos Khursevich, Bot. Zhurn. 74: 487 1989 (Algae, Bacillariophyta). TYPE: — Radiaticorollarus enpingensis (F. Wen, Y. G. Wei amp; Z. B. Xin) F. Wen, Y. G. Wei amp; Lei Cai (≡ Actinostephanus enpingensis F. Wen, Y. G. Wei amp; Z. B. Xin).
Radiaticorollarus enpingensis (F. Wen, Y. G. Wei amp; Z. B. Xin) F. Wen, Y. G. Wei amp; Lei Cai, comb. nov.
Basionym: — Actinostephanus enpingensis F. Wen, Y. G. Wei amp; Z. B. Xin, PhytoKeys 193: 96. 2022. TYPE: — CHINA. Guangdong Province: Enping City, Naji Town, Qixingkeng provincial natural reserve, growing on the cliffs or slopes of montane yellow soil and sandy loam near a stream, 22°11.1808′ N, 112°5.841′ E, ca. 153 m, 19 May 2021, Chen Xiaoyun amp; Liang Junjie 210519-01 (holotype: IBK, isotypes: IBK).
Acknowledgments
We would like to thank Research Professor DENG Yunfei of the South China Botanical Garden, Chinese Academy of Sciences for his suggestions and strong support. We also thank the editors and anonymous reviewers for their positive comments and help on the manuscript.
References:
ANDERSEN RA, 2023. Report of the Nomenclature Committee for Algae: 25. ". Taxon, 72(6): 1355.
DESHMUKH UB, 2022. (104) Request for a binding decision on whether the names Actinostephanos Khursevich (Bacillariophyta) and Actinostephanus F. Wen amp; al. (Gesneriaceae) are sufficiently alike to be confused ". Taxon, 71(5): 1127.
KHURSEVICH GK, 1989. New data on morphology and systematic position of Stephanodiscus matrensis (Bacilla-riophyta) ". Bot Zh, 74(4): 487-489.
TURLAND NJ, WIERSEMA JH, BARRIE FR, et al., 2018. International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017 [M]. Koeltz botanical books, Glashütten. Regnum Vegetabile 159. https://doi.org/10.12705/Code.2018.
WEN F, XIN ZB, HONG X, et al., 2022. Actinostephanus (Gesneriaceae), a new genus and species from Guangdong, South China ". PhytoKeys, 193: 89-106.
(責(zé)任編輯"蔣巧媛"王登惠)
DOI: 10.11931/guihaia.gxzw202312059
溫放, 韋毅剛, 李曉娟, 等, 2024.
輻冠苣苔屬 (苦苣苔科) 一新替代名稱 —— Radiaticorollarus Y. G. Wei, F. Wen amp; Lei Cai . 廣西植物, 44(4): 619-620.
WEN F, WEI YG, LI XJ, et al., 2024. Radiaticorollarus, a new replacement name for Actinostephanus (Gesneriaceae, Didymocarpoideae) .
Guihaia, 44(4): 619-620.
收稿日期: "2023-12-31接受日期: "2024-01-24
基金項目: ""廣西科技計劃項目 (桂科ZY21195050); 中國科學(xué)院戰(zhàn)略生物資源能力建設(shè)項目 (KFJ-BRP-017-68)。
第一作者: 溫放(1976—),博士,研究員,主要從事園林植物和觀賞植物育種和應(yīng)用、植物分類學(xué)和保育生物學(xué)研究,(E-mail)wenfang760608@139.com。
通信作者: 蔡磊,博士,副研究員,主要從事極小種群野生植物的保護(hù)生物學(xué)、植物分類學(xué)和植物資源學(xué)研究,(E-mail)cailei@mail.kib.ac.cn。