Reassessment of Chirita umbrophila (Gesneriaceae) based on molecular and morphological evidence
Data files
Jan 08, 2022 version files 1.74 MB
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ETS.fasta
19.74 KB
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Fig._S1_Nuclear_iqtree.pdf
311.66 KB
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Fig._S2_Nuclear_mrbayes.pdf
308.04 KB
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Fig._S3_Chloroplast_iqtree.pdf
309.44 KB
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Fig._S4_Chloroplast_mrbayes.pdf
305.61 KB
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Fig._S5_combine_mrbayes.pdf
304.35 KB
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ITS.fasta
52.96 KB
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README.txt
1.24 KB
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rpL16.fasta
32.16 KB
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rps16.fasta
39.69 KB
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trnL-F.fasta
57.54 KB
May 09, 2022 version files 1.75 MB
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ETS.fasta
19.74 KB
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Fig._S1_Nuclear_iqtree.pdf
312.64 KB
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Fig._S2_Nuclear_mrbayes.pdf
308.87 KB
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Fig._S3_Chloroplast_iqtree.pdf
309.94 KB
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Fig._S4_Chloroplast_mrbayes.pdf
306.01 KB
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Fig._S5_combine_mrbayes.pdf
305.17 KB
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ITS.fasta
52.96 KB
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README.txt
1.24 KB
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rpL16.fasta
32.16 KB
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rps16.fasta
39.69 KB
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trnL-F.fasta
57.54 KB
Abstract
Chirita umbrophila C.Y.Wu ex H.W.Li is a species endemic to Yunnan, China, and its exact systematic position remains a mystery since it was treated as a species with uncertain generic affiliation in the taxonomic revision of Chirita Buch.-Ham. ex Don in 1985. In the present study, the phylogenetic relationships between C. umbrophila and its allied species were inferred using two nuclear ribosomal DNA regions (ETS and ITS) and three chloroplast regions (rpl16, rps16, and trnL-F). Additionally, the type locality of C. umbrophila was re-visited and flowering specimens were collected and examined. Our phylogenetic analyses showed that Chirita umbrophila is imbedded in three accessions of Loxostigma kurzii with strong support. Morphological observations revealed that C. umbrophila can be characterized as perennial herbs with somewhat tufted leaves at the top of the aerial stem, large ventricose corollas with yellow-brown spotted interior surfaces, four anthers cohering in pairs, and two equal or subequal stigmas. Detailed morphological analyses suggested that C. umbrophila is indistinguishable from Loxostigma kurzii (C.B.Clarke) B.L.Burtt (Didymocarpus? kurzii C.B.Clarke). Therefore, both molecular phylogenetic results and morphological evidence support that Chirita umbrophila is conspecific with Loxostigma kurzii, and a taxonomic treatment is provided herein.