A new species of Cotoneaster (Rosaceae) from western Sichuan, China
Cotoneaster densiflorus, a new species of Rosaceae from western Sichuan, China, is described and illustrated. Morphologically, we inferred that the new species belongs to Cotoneaster Ser. Salicifolii sensu Yü et al. (1974) in the Flora of China and Fryer and Hylmö (2009). This species is most simila...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Pensoft Publishers
2023-11-01
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| Series: | PhytoKeys |
| Online Access: | https://phytokeys.pensoft.net/article/111819/download/pdf/ |
| _version_ | 1827630705855692800 |
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| author | Mingwan Li Dan Li Mengfei Lu Shuangfeng Mo Shen Ding Yuanyuan Chen Yong Lai Dangquan Zhang Wenbo Liao Qiang Fan |
| author_facet | Mingwan Li Dan Li Mengfei Lu Shuangfeng Mo Shen Ding Yuanyuan Chen Yong Lai Dangquan Zhang Wenbo Liao Qiang Fan |
| author_sort | Mingwan Li |
| collection | DOAJ |
| description | Cotoneaster densiflorus, a new species of Rosaceae from western Sichuan, China, is described and illustrated. Morphologically, we inferred that the new species belongs to Cotoneaster Ser. Salicifolii sensu Yü et al. (1974) in the Flora of China and Fryer and Hylmö (2009). This species is most similar to C. salicifolius, but differs in its leaf blade of ovate-lanceolate to obovate shape (vs. elliptic-oblong to ovate-lanceolate), smaller length-width ratio of 2.37 ± 0.31 (vs. 3.17 ± 0.32), slightly conduplicate (vs. not conduplicate), less lateral veins of 6–8 pairs (vs. 12–16 pairs), upper surface slightly rugose (vs. rugose), leaf margin plane (vs. revolute), lower surface densely grey tomentose (vs. grey tomentose, with bloom), greater corolla diameter of 7–9 mm (vs. 5–6 mm), styles 2 (vs. 2–3), pyrenes 2 (vs. 2–3), larger pollen grains P/E values of 2.05 ± 0.12 (vs. 1.19 ± 0.05) and leaf epidermis type W (vs. type I). Based on phylogenetic analysis of the whole chloroplast genome, C. densiflorus is sister to C. rhytidophyllus, but distantly related to C. salicifolius. |
| first_indexed | 2024-03-09T14:10:33Z |
| format | Article |
| id | doaj.art-1f6cffd5705447bdad80afb13b859c25 |
| institution | Directory Open Access Journal |
| issn | 1314-2003 |
| language | English |
| last_indexed | 2024-03-09T14:10:33Z |
| publishDate | 2023-11-01 |
| publisher | Pensoft Publishers |
| record_format | Article |
| series | PhytoKeys |
| spelling | doaj.art-1f6cffd5705447bdad80afb13b859c252023-11-29T11:00:06ZengPensoft PublishersPhytoKeys1314-20032023-11-01236395210.3897/phytokeys.236.111819111819A new species of Cotoneaster (Rosaceae) from western Sichuan, ChinaMingwan Li0Dan Li1Mengfei Lu2Shuangfeng Mo3Shen Ding4Yuanyuan Chen5Yong Lai6Dangquan Zhang7Wenbo Liao8Qiang Fan9Henan Agricultural UniversityHenan Agricultural UniversityHenan Agricultural UniversityHenan Agricultural UniversityHenan Agricultural UniversityHenan Agricultural UniversityHenan Agricultural UniversityHenan Agricultural UniversitySun Yat-sen UniversitySun Yat-sen UniversityCotoneaster densiflorus, a new species of Rosaceae from western Sichuan, China, is described and illustrated. Morphologically, we inferred that the new species belongs to Cotoneaster Ser. Salicifolii sensu Yü et al. (1974) in the Flora of China and Fryer and Hylmö (2009). This species is most similar to C. salicifolius, but differs in its leaf blade of ovate-lanceolate to obovate shape (vs. elliptic-oblong to ovate-lanceolate), smaller length-width ratio of 2.37 ± 0.31 (vs. 3.17 ± 0.32), slightly conduplicate (vs. not conduplicate), less lateral veins of 6–8 pairs (vs. 12–16 pairs), upper surface slightly rugose (vs. rugose), leaf margin plane (vs. revolute), lower surface densely grey tomentose (vs. grey tomentose, with bloom), greater corolla diameter of 7–9 mm (vs. 5–6 mm), styles 2 (vs. 2–3), pyrenes 2 (vs. 2–3), larger pollen grains P/E values of 2.05 ± 0.12 (vs. 1.19 ± 0.05) and leaf epidermis type W (vs. type I). Based on phylogenetic analysis of the whole chloroplast genome, C. densiflorus is sister to C. rhytidophyllus, but distantly related to C. salicifolius.https://phytokeys.pensoft.net/article/111819/download/pdf/ |
| spellingShingle | Mingwan Li Dan Li Mengfei Lu Shuangfeng Mo Shen Ding Yuanyuan Chen Yong Lai Dangquan Zhang Wenbo Liao Qiang Fan A new species of Cotoneaster (Rosaceae) from western Sichuan, China PhytoKeys |
| title | A new species of Cotoneaster (Rosaceae) from western Sichuan, China |
| title_full | A new species of Cotoneaster (Rosaceae) from western Sichuan, China |
| title_fullStr | A new species of Cotoneaster (Rosaceae) from western Sichuan, China |
| title_full_unstemmed | A new species of Cotoneaster (Rosaceae) from western Sichuan, China |
| title_short | A new species of Cotoneaster (Rosaceae) from western Sichuan, China |
| title_sort | a new species of cotoneaster rosaceae from western sichuan china |
| url | https://phytokeys.pensoft.net/article/111819/download/pdf/ |
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