1.广东省植物逆境生物学重点实验室 / 中山大学生命科学学院,广东 广州510275
2.武陵山区特色资源植物种质保护与利用湖北省重点实验室 / 中南民族大学生命科学学院, 湖北 武汉 430074
3.广东省潮州市潮安区归湖镇人民政府,广东 潮州 515647
Huang Yanshuang(huangysh28@mail2.sysu.edu.cn);
Xiong Chi(guilinxiongchi@126.com)
Fan Qiang (fanqiang@mail.sysu.edu.cn)
收稿:2026-06-05,
修回:2026-07-09,
录用:2026-07-24,
网络首发:2026-10,
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黄燕双, 熊驰, 丁剑鸿, 等. 广西堇菜属一新种:锯齿堇菜[J/OL]. 中山大学学报(自然科学版)(中英文), 2026,1-7.
Huang Yanshuang, Xiong Chi, Ding Jianhong, et al.
黄燕双, 熊驰, 丁剑鸿, 等. 广西堇菜属一新种:锯齿堇菜[J/OL]. 中山大学学报(自然科学版)(中英文), 2026,1-7. DOI: 10.11714/acta.snus.ZR20260144.
Huang Yanshuang, Xiong Chi, Ding Jianhong, et al.
报道了产自广西壮族自治区的堇菜科(Violaceae)堇菜属(
Viola
)一个新种——锯齿堇菜(
Viola serrata
Yan S.Huang
&
Q.Fan)。通过形态学比较及nrDNA ITS区序列的系统发育分析,确认该种隶属于堇菜属
Plagiostigma
组
Diffusae
亚组。锯齿堇菜与张氏堇菜(
V. changii
J.S. Zhou
&
F.W. Xing)亲缘关系较近,但可通过叶缘具锯齿且先端锐尖、全株密被柔毛、具粗壮发达的根茎,花瓣基部具黄色斑点和下瓣背面被毛等特征与后者明显区分;系统发育分析结果也支持其作为独立物种的分类地位。本研究为
Diffusae
亚组的分类修订和系统演化研究提供了新的证据,并进一步丰富了中国南方地区植物区系的多样性。
A new species of
Viola
(Violaceae)
V. serrata
Yan S.Huang
&
Q.Fan
is described from Guangxi Zhuang Autonomous Region
China. Based on field surveys
detailed morphological comparisons
and phylogenetic analyses of ITS sequences
the new species is placed within
Viola
section
Plagiostigma
subsection
Diffusae
. Morphologically
V. serrata
is most similar to
V. changii
J.S.Zhou
&
F.W.Xing
but can be clearly distinguished by several key diagnostic features: the leaf margins are serrate with acute apices (vs. crenate with obtuse apices)
the rhizomes are robust and well-developed (vs. a primarily fibrous root system)
the petal bases feature yellow spots(vs. white)
and both the ovary and the abaxial surfaces of the anterior petals are pubescent (vs. glabrous). This discovery clarifies the species boundaries within subsection
Diffusae
and provides new insights into the diversity and evolutionary history of the genus
Viola
in the karst regions of South China.
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