Taxonomic novelties in the genus Spiraea (Rosaceae-Amygdaloideae-Spiraeeae) in Asia

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027073%3A_____%2F18%3AN0000100" target="_blank" >RIV/00027073:_____/18:N0000100 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.verlag-berger.at/e-books/phyton/detail/v/issn-0079-2047-e9ca75cd10.html" target="_blank" >https://www.verlag-berger.at/e-books/phyton/detail/v/issn-0079-2047-e9ca75cd10.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.12905/0380.phyton58(2)-2019-0185" target="_blank" >10.12905/0380.phyton58(2)-2019-0185</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Taxonomic novelties in the genus Spiraea (Rosaceae-Amygdaloideae-Spiraeeae) in Asia

Popis výsledku v původním jazyce

The present study deals with several independent taxonomic issues of the genus Spiraea in eastern and south-eastern Asia. Two new species are described from central China. Spiraea sericeoides Businský, distributed from southern Shanxi to central Sichuan, is segregated from S. sericea (confirmed only from the Russian Far East, northeastern China, North Korea, and northern Japan), and it is compared to the enigmatic S. pjasetzkii (syn. S. prostrata Maxim., nom. illeg.), which is known only from the syntype collections from 1875. Spiraea sericea is accepted here only at the rank of variety, as S. media var. sericea (Turcz.) Maxim. The other new species, Spiraea cardotiana Businský, narrowly endemic at the eastern margin of the Tibetan Plateau in western Sichuan, was collected sporadically (provably in 1893, 1908, 1992 and 2007) because its diagnostic trait (distinctly heteromorphic leaves) has been overlooked, due to the usual incomplete herbarium collections. Spiraea canescens var. oblanceolata Rehder is newly synonymized with S. cardotiana. Spiraea cardotiana is allied to S. canescens and S. schneideriana, which are delimited morphologically and geographically in this paper. The occurrence of S. canescens in the Chinese provinces Yunnan and Sichuan cannot be supported by any reliable collection. The hitherto almost unknown S. wardii, confined to two collections from northern Burma from 1914 and 1919, is newly synonymized with S. canescens. Other anomalous collections from Sichuan and Yunnan assigned incorrectly to S. canescens are commented upon, and a similar S. schochiana is typified by the newly designated lectotype. Spiraea hemicryptophyta, described from the eastern Himalayas and adjacent ranges to northwestern Yunnan, is newly synonymized with the two years older and forgotten S. subrotundifolia; the holotype specimens of both names were collected in Sikkim. The recently described S. fangii, known from a single locality at the eastern margin of the Tibetan Plateau west of Chengdu in Sichuan, is accepted as an ecological form of S. alpina and is newly synonymized with it (S. alpina occupies a large distribution area in high mountains from southern Siberia and Central Asia across the Tibetan Plateau to central China). Spiraea wilsonii, described in 1906 based on the collection of E. H. Wilson from northwestern Hubei in central China and occasionally misinterpreted in herbaria, is stabilized by the newly designated lectotype, and S. uratensis var. floribunda is newly synonymized with it. A new variety, S. wilsonii var. stenophylla Businský, is described based on the type of S. longifolia H. Y. Hu & X. J. He (2016, nom. illeg.). The newly designated lectotype of S. flexuosa, fully corresponding to the protologue, was selected from the holdings of herbarium P (M.N.H.N., Paris), instead of the previously accepted but not representative “typus” in herbarium G (C.J.B., Chambésy/Geneva); this taxon is accepted here as S. chamaedryfolia var. flexuosa. A new name, S. turczaninowii Businský, is proposed for the illegitimate S. pubescens Turcz., together with the newly designated lectotype, and with S. flexuosa var. pubescens as its new synonym, also typified by the newly designated lectotype.

Název v anglickém jazyce

Taxonomic novelties in the genus Spiraea (Rosaceae-Amygdaloideae-Spiraeeae) in Asia

Popis výsledku anglicky

The present study deals with several independent taxonomic issues of the genus Spiraea in eastern and south-eastern Asia. Two new species are described from central China. Spiraea sericeoides Businský, distributed from southern Shanxi to central Sichuan, is segregated from S. sericea (confirmed only from the Russian Far East, northeastern China, North Korea, and northern Japan), and it is compared to the enigmatic S. pjasetzkii (syn. S. prostrata Maxim., nom. illeg.), which is known only from the syntype collections from 1875. Spiraea sericea is accepted here only at the rank of variety, as S. media var. sericea (Turcz.) Maxim. The other new species, Spiraea cardotiana Businský, narrowly endemic at the eastern margin of the Tibetan Plateau in western Sichuan, was collected sporadically (provably in 1893, 1908, 1992 and 2007) because its diagnostic trait (distinctly heteromorphic leaves) has been overlooked, due to the usual incomplete herbarium collections. Spiraea canescens var. oblanceolata Rehder is newly synonymized with S. cardotiana. Spiraea cardotiana is allied to S. canescens and S. schneideriana, which are delimited morphologically and geographically in this paper. The occurrence of S. canescens in the Chinese provinces Yunnan and Sichuan cannot be supported by any reliable collection. The hitherto almost unknown S. wardii, confined to two collections from northern Burma from 1914 and 1919, is newly synonymized with S. canescens. Other anomalous collections from Sichuan and Yunnan assigned incorrectly to S. canescens are commented upon, and a similar S. schochiana is typified by the newly designated lectotype. Spiraea hemicryptophyta, described from the eastern Himalayas and adjacent ranges to northwestern Yunnan, is newly synonymized with the two years older and forgotten S. subrotundifolia; the holotype specimens of both names were collected in Sikkim. The recently described S. fangii, known from a single locality at the eastern margin of the Tibetan Plateau west of Chengdu in Sichuan, is accepted as an ecological form of S. alpina and is newly synonymized with it (S. alpina occupies a large distribution area in high mountains from southern Siberia and Central Asia across the Tibetan Plateau to central China). Spiraea wilsonii, described in 1906 based on the collection of E. H. Wilson from northwestern Hubei in central China and occasionally misinterpreted in herbaria, is stabilized by the newly designated lectotype, and S. uratensis var. floribunda is newly synonymized with it. A new variety, S. wilsonii var. stenophylla Businský, is described based on the type of S. longifolia H. Y. Hu & X. J. He (2016, nom. illeg.). The newly designated lectotype of S. flexuosa, fully corresponding to the protologue, was selected from the holdings of herbarium P (M.N.H.N., Paris), instead of the previously accepted but not representative “typus” in herbarium G (C.J.B., Chambésy/Geneva); this taxon is accepted here as S. chamaedryfolia var. flexuosa. A new name, S. turczaninowii Businský, is proposed for the illegitimate S. pubescens Turcz., together with the newly designated lectotype, and with S. flexuosa var. pubescens as its new synonym, also typified by the newly designated lectotype.

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

2018

Kód důvěrnosti údajů

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

Název periodika

Phyton-Annales Rei Botanicae

ISSN

0079-2047

e-ISSN

—

Svazek periodika

58

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

AT - Rakouská republika

Počet stran výsledku

20

Strana od-do

185–204

Kód UT WoS článku

000459236600013

EID výsledku v databázi Scopus

—