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1 February 2013 Lespedeza jiangxiensis, sp. nov. (Fabaceae) from China Based on Molecular and Morphological Data
Bo Xu, Xin-Fen Gao, Li-Bing Zhang
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Abstract

A new species of Lespedeza (Fabaceae) from Jiangxi Province, China is here described as Lespedeza jiangxiensis. The new species is morphologically similar to L. inschanica, but differs on the obovate leaflets with densely adpressed-pubescence adaxially and abaxially, shorter floral peduncles (0.5–1 mm long), shorter calyces (2.9–3.8 mm long), and white to yellowish-white keel-petal apices. In contrast, L. inschanica is characterized by oblong leaflets that are glabrous adaxially, longer floral peduncles (3–10 mm long), longer calyces (5–6 mm long), and light purple keel-petal apices. A phylogenetic analysis based on DNA sequences of plastid rpL32-trnL and trnL-F intergenic spacers identified L. pilosa as the closest relative of L. jiangxiensis. Interestingly, however, L. pilosa is remarkably different morphologically from L. jiangxiensis. Pollen grains of L. jiangxiensis are similar to those of L. chinensis, L. inschanica, and L. pilosa in size, shape, and germination organ type, but clearly different in exine sculpture.

© Copyright 2013 by the American Society of Plant Taxonomists
Bo Xu, Xin-Fen Gao, and Li-Bing Zhang "Lespedeza jiangxiensis, sp. nov. (Fabaceae) from China Based on Molecular and Morphological Data," Systematic Botany 38(1), 118-126, (1 February 2013). https://doi.org/10.1600/036364413X661845
Published: 1 February 2013
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KEYWORDS
phylogeny
pollen morphology
rpL32-trnL
subg. Lespedeza
trnL-F
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