Taxonomic notes on Artemisia waltonii (Asteraceae, Anthemideae), with reduction of A. kangmarensis and A. conaensis to the synonymy of its type variety

Phytotaxa ◽  
2020 ◽  
Vol 450 (2) ◽  
pp. 149-172
Author(s):  
XIN-QIANG GUO ◽  
LONG WANG ◽  
QIN-ER YANG

Based on observations on both herbarium specimens (including type material) and living wild plants, we demonstrate that Artemisia waltonii var. waltonii (Asteraceae, Anthemideae) is readily distinguishable from A. waltonii var. yushuensis by having abaxially tomentose (vs. glabrescent, rarely sparsely pubescent) leaves. The type variety is distributed only in central and southern Xizang (Tibet) in China whereas the latter one occurs widely in southern Qinghai, western Sichuan and eastern Xizang in the country. Moreover, we determine that A. conaensis and A. kangmarensis, both described from Xizang, are identical with A. waltonii var. waltonii and thus should be synonymized. Lectotypification is proposed for A. waltonii.

Phytotaxa ◽  
2021 ◽  
Vol 498 (2) ◽  
pp. 87-103
Author(s):  
YOU-PAI ZENG ◽  
QIONG YUAN ◽  
QIN-ER YANG

Based on critical observations on herbarium specimens (including type material) and living plants in the wild from its type locality, we demonstrate that Thalictrum kangdingense, recently described from Kangding county in western Sichuan province, China, is readily distinguishable from T. xinningense by an array of morphological characters but is actually conspecific with T. megalostigma, a species with its type locality also in Kangding. We therefore reduce T. kangdingense to the synonymy of T. megalostigma herein. The morphological distinction between T. baicalense and T. megalostigma is also clarified.


Phytotaxa ◽  
2021 ◽  
Vol 509 (2) ◽  
Author(s):  
YOU-PAI ZENG ◽  
QIONG YUAN ◽  
QIN-ER YANG

Based on critical observations on herbarium specimens (including type material) and living plants in the wild, we demonstrate that Thalictrum jilongense and T. tenuicaule (Ranunculaceae), described from southern Xizang (Tibet) and western Sichuan, China, respectively, are both conspecific with T. leuconotum. We therefore reduce T. jilongense and T. tenuicaule to the synonymy of T. leuconotum herein. Lectotypification is proposed for T. leuconotum.


Phytotaxa ◽  
2019 ◽  
Vol 420 (2) ◽  
pp. 185-197 ◽  
Author(s):  
QIONG YUAN ◽  
QIN-ER YANG

Based on examination of herbarium specimens (including type material), we demonstrate that Delphinium breviscaposum and D. filibracteolum (Ranunculaceae), both described recently from northwestern Yunnan in China, are conspecific with D. ceratophorum and D. bulleyanum, respectively, two species very common in northwestern Yunnan. We therefore synonymize D. breviscaposum and D. filibracteolum herein. Second step lectotypifications are proposed for both D. bulleyanum and D. ceratophorum.


Phytotaxa ◽  
2019 ◽  
Vol 405 (1) ◽  
pp. 37
Author(s):  
HUI-MIN LI ◽  
QIONG YUAN ◽  
QIN-ER YANG

Delphinium ellipticovatum, D. tianshanicum and D. winklerianum (Ranunculaceae) share some important characters in leaf division, pedicel pubescence and the shape of the spur of upper sepals. They have been considered to be different mainly in the characters of bracteoles (shape, size, indumentum, and position on pedicels). Our critical observations on herbarium specimens (including type material) and living plants, together with numerical analyses of the bracteole characters within and between populations of the species in question, have demonstrated that, in addition to D. kuanii previously already synonymized with D. winklerianum, both D. ellipticovatum and D. tianshanicum are also indistinguishable from D. winklerianum. We therefore further place D. ellipticovatum and D. tianshanicum also in synonymy with D. winklerianum.


Phytotaxa ◽  
2019 ◽  
Vol 420 (2) ◽  
pp. 179-184
Author(s):  
QIONG YUAN ◽  
QIN-ER YANG

Examination of herbarium specimens (including type material) has shown that Anemone weixiensis, recently described from Weixi County in northwestern Yunnan, China, is conspecific with A. flaccida, a species widely distributed in China, Japan and Russia (Far East) and fairly common in northwestern Yunnan. We therefore place A. weixiensis in synonymy with A. flaccida. As A. flaccida belongs to A. sect. Keiskea based on molecular work, we reduce A. sect. Deinostigma, which was established to accommodate A. weixiensis, to the synonymy of A. sect. Keiskea.


Phytotaxa ◽  
2016 ◽  
Vol 252 (2) ◽  
pp. 137 ◽  
Author(s):  
LONG WANG ◽  
CHEN REN ◽  
QIN-ER YANG

Critical examination of herbarium specimens (including type material) of Cremanthodium ellisii var. roseum (Asteraceae, Senecioneae) has shown that the variety should be transferred to C. brunneopilosum. We therefore propose a new combination, C. brunneopilosum var. roseum.


Phytotaxa ◽  
2016 ◽  
Vol 288 (1) ◽  
pp. 1 ◽  
Author(s):  
LONG WANG ◽  
CHEN REN ◽  
QIN-ER YANG

Cremanthodium atrocapitatum (Asteraceae, Senecioneae) has been previously largely misunderstood, resulting in considerable taxonomic confusion involving several taxa. Based on observations of both herbarium specimens (including type material) and living plants, here we clarify the taxonomic identity of this species. The Xizang (Tibet) plants previously referred to C. atrocapitatum are described as a new species, i.e. C. bomiense. Cremanthodium campanulatum var. brachytrichum is found to be very close to C. atrocapitatum rather than C. campanulatum, and is thus treated as C. atrocapitatum var. brachytrichum.


Phytotaxa ◽  
2020 ◽  
Vol 451 (4) ◽  
pp. 283-293
Author(s):  
YOU-PAI ZENG ◽  
QIONG YUAN ◽  
QIN-ER YANG

Thalictrum semiscandens (Ranunculaceae) was described from Lushui County in northwestern Yunnan, China and has been almost totally overlooked since its publication. Based on a critical examination on herbarium specimens (including type material), we demonstrate that it is conspecific with T. trichopus, a species widely distributed in southwestern China (Sichuan and Yunnan). We therefore reduce T. semiscandens to the synonymy of T. trichopus herein. Lectotypification is proposed for T. trichopus.


Phytotaxa ◽  
2020 ◽  
Vol 453 (1) ◽  
pp. 16-30
Author(s):  
XIN-QIANG GUO ◽  
LONG WANG ◽  
QIN-ER YANG

Based on observations on both herbarium specimens (including type material) and living plants in the wild, we demonstrate that Artemisia sichuanensis var. sichuanensis (Asteraceae, Anthemideae) differs from A. sichuanensis var. tomentosa only by the leaves abaxially sparsely pubescent (vs. densely gray arachnoid tomentose). In addition, A. erlangshanensis is found to be identical with A. sichuanensis var. tomentosa, and is thus synonymized herein.


Phytotaxa ◽  
2017 ◽  
Vol 311 (1) ◽  
pp. 57 ◽  
Author(s):  
LONG WANG ◽  
CHEN REN ◽  
QIN-ER YANG

Critical observations on both herbarium specimens (including type material) and living plants demonstrate that Cremanthodium lingulatum and C. pseudo-oblongatum (Asteraceae, Senecioneae) are conspecific. We therefore place the former into the synonymy of the latter. Lectotypification is proposed for C. pseudo-oblongatum.


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