Lespedeza jiangxiensis, sp. nov. (Fabaceae) from China based on Molecular and Morphological Data
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.
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.
Keywords: Pollen morphology; phylogeny; rpL32-trnL; subg. Lespedeza; trnL-F
Document Type: Research Article
Publication date: 01 March 2013
- Systematic Botany is the scientific journal of the American Society of Plant Taxonomists and publishes four issues per year.
2011 Impact Factor: 1.517
2011 ISI Journal Citation Reports® Rankings: 87/190 - Plant Sciences
34/45 - Evolutionary Biology - Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- Ingenta Connect is not responsible for the content or availability of external websites
- Access Key
- Free content
- Partial Free content
- New content
- Open access content
- Partial Open access content
- Subscribed content
- Partial Subscribed content
- Free trial content