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Sedum qingyuanense (Crassulaceae), a new species from Qingyuan, Guangdong, China
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This study describes a new species of
Sedum
(Crassulaceae),
Sedum qingyuanense
sp. nov.
discovered in Qingyuan City, Guangdong Province, China. Morphologically,
S. qingyuanense
resembles
S. alfredii
and
S. emarginatum
. The new species may have previously been misidentified as
S. alfredii
. However, the new species can be readily distinguished from
S. alfredii
by its creeping sterile stems, opposite leaves, emarginate leaf apices, and smaller sepals. Compared to
S. emarginatum
, it is differentiated by its creeping sterile stems, smaller sepals, and conspicuous pseudopetioles. Phylogenetic analysis based on the nuclear ribosomal DNA internal transcribed spacer (ITS) region revealed that the new species forms a sister clade to
S. emarginatum
within Sedum sect. Sedum, supported by moderate to strong bootstrap support (> 80%). Integrating both morphological evidence and the phylogenetic tree, we establish it as an independent lineage.
Pensoft Publishers
Title: Sedum qingyuanense (Crassulaceae), a new species from Qingyuan, Guangdong, China
Description:
This study describes a new species of
Sedum
(Crassulaceae),
Sedum qingyuanense
sp.
nov.
discovered in Qingyuan City, Guangdong Province, China.
Morphologically,
S.
qingyuanense
resembles
S.
alfredii
and
S.
emarginatum
.
The new species may have previously been misidentified as
S.
alfredii
.
However, the new species can be readily distinguished from
S.
alfredii
by its creeping sterile stems, opposite leaves, emarginate leaf apices, and smaller sepals.
Compared to
S.
emarginatum
, it is differentiated by its creeping sterile stems, smaller sepals, and conspicuous pseudopetioles.
Phylogenetic analysis based on the nuclear ribosomal DNA internal transcribed spacer (ITS) region revealed that the new species forms a sister clade to
S.
emarginatum
within Sedum sect.
Sedum, supported by moderate to strong bootstrap support (> 80%).
Integrating both morphological evidence and the phylogenetic tree, we establish it as an independent lineage.
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