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.广东省园林花卉种质创新综合利用重点实验室 / 广东省农业科学院环境园艺研究所,广东 广州 510640
3.广东省清新白湾省级自然保护区,广东 清远 511800
4.广东省南昆山省级自然保护区管理处,广东 惠州 516876
5.清远市林业局,广东 清远 511518
[ "FAN Qiang (fanqiang@mail.sysu.edu.cn)" ]
收稿:2025-04-10,
修回:2025-09-17,
录用:2025-10-11,
网络出版:2025-10-23,
纸质出版:2025-11-25
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黄燕双,徐晔春,贾薪玉等.广东景天属(景天科)二新种[J].中山大学学报(自然科学版)(中英文),2025,64(06):39-46.
HUANG Yanshuang,XU Yechun,JIA Xinyu,et al.Two new species of Sedum (Crassulaceae) from Guangdong, China[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2025,64(06):39-46.
黄燕双,徐晔春,贾薪玉等.广东景天属(景天科)二新种[J].中山大学学报(自然科学版)(中英文),2025,64(06):39-46. DOI: 10.13471/j.cnki.acta.snus.ZR20250068.
HUANG Yanshuang,XU Yechun,JIA Xinyu,et al.Two new species of Sedum (Crassulaceae) from Guangdong, China[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2025,64(06):39-46. DOI: 10.13471/j.cnki.acta.snus.ZR20250068.
报道了产自广东省的景天科(Crassulaceae)景天属(
Sedum
) 2个新种:白湾景天(
Sedum baiwanense
Yan S. Huang
&
Q. Fan)和南昆山景天(
Sedum nankunshanense
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,确认二者属于
Acre
分枝,与细小景天(
S. subtile
Miq.)、天目山景天(
S. tianmushanense
Y.C.Ho
&
F.Chai)及九龙山景天(
S. jiulungshanense
Y.C.Ho)构成高支持率的单系姐妹群(节点后验概率=1)。该单系群内物种具显著形态差异,支持其独立分类地位。本研究为广东省植物多样性及景天属系统演化研究提供了关键资料。
Two new species of Crassulaceae
Sedum baiwanense
Yan S. Huang
&
Q. Fan and
S. nankunshanense
Yan S. Huang
&
Q. Fan
from Guangdong
China
are described and illustrated here. Phylogenetic analysis based on the internal transcribed spacer (ITS) region of nrDNA suggests that the two new species belong to
Acre
Clade
and are relative to
S.subtile
Miq.
S.tianmushanens
e Y.C.Ho
&
F.Chai
and
S.
jiulungshanense
Y.C.Ho with high support values (node posterior probabilities = 1). With high morphologically differences
we can easily distinguish species in this monophyletic group.
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