Cheniella R. Clark & Mackinder
Creators: name: Peng, Xia
name: Jiang, Kai-Wen
name: Fang, Tian-Song
name: Gu, Qiao-Yun
name: Gu, Shi-Ran
name: Xie, Zhi
name: Duan, Lei
name: Li, Shi-Jin
name: Wang, Xiang-Ping
name: Shi, Miao-Miao
name: Tu, Tie-Yao
name: Zhang, Dian-Xiang
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Cheniella

description: Key to species of Cheniella   
1. Leaf entire to emarginate, bilobed to less than 1/5 of length.............................................................................................................2  
- Leaf bilobed to at least 1/4 of length..................................................................................................................................................5  
 2. Leaf entire, ovate, hairy on lower surface....................................................................................................................... C. ovatifolia   
- Leaf emarginate, hairy on lower or both surfaces..............................................................................................................................3  
 3. Leaf densely tomentose; ovary villose along both sutures; legume hairs ferruginous................................................. C. tianlinensis   
- Leaf pubescent; ovary glabrous or with few hairs; mature legume glabrous.....................................................................................4  
 4. Leaf on lower surface dark ferruginous tomentose, white tomentose on upper surface; inflorescence a raceme, ferruginous tomentose; pedicel persistent after flowering, hypanthium 23–25 mm; ovary glabrous......................................... C. clemensiorum   
 - Leaf on lower surface pale ferruginous appressed hairy, tomentose, villose, or pilose on veins, upper surface glabrous; inflorescence a raceme or corymb, pale tomentose; pedicel falling after flowering, hypanthium 7–20 mm; ovary with few hairs at the base........................................................................................................................................................................................... C. quinnanensis   
5. Leaf length ≤ 51 mm, bilobed to ≥ 1/2 of length................................................................................................................................6  
- Leaf length 20–80 mm, bilobed to ≤ 1/2 of length...........................................................................................................................10  
 6. Petals yellowish green; hypanthium 4–8 mm; ovary mostly glabrous but with ferruginous hairs along the dorsal suture......................................................................................................................................................................................................... C. hechiensis   
- Petals white or pink; hypanthium 9–28 mm; ovary glabrous.............................................................................................................7  
 7. Leaf bilobed almost to the base, or the lobes joined by ca 1–2 mm; petals white; hypanthium 9–15 mm......................... C. didyma   
- Leaf bilobed to a lesser degree, the lobes joined by at least 3 mm; petals white or pink; hypanthium 11–28 mm...........................8  
 8. Inflorescence an elongate raceme, axis length 2–16 mm; petals white, flowers zygomorphic; lengths of fully developed stamens and mature pistils 10–22 mm; legume curved or twisted, tardily dehiscent along one or both sutures............................ C. longipes   
- Inflorescence a corymb, axis length 2–7 mm; petals white or pink, flowers nearly actinomorphic; lengths of fully developed stamens and mature pistils 10–15 mm; legume straight, tardily dehiscent........................................................................................9  
 9. Petals pink; hypanthium length 18–28 mm; upper surface of leaves and branches glabrous, lower surface of leaves sparsely appressed pilose............................................................................................................................................................. C. corymbosa   
 - Petals white; hypanthium length 11–16 mm; both surfaces of leaves and branches densely hairy......................  C. tsoongii sp. nov.    
 10. Leaf width greater than length; legume hairy................................................................................................................. C. pubicarpa   
- Leaf length greater or lesser than width; legume glabrous...............................................................................................................11  
11. Hypanthium length ≤ 14 mm............................................................................................................................................................12  
- Hypanthium length ≥ 15 mm............................................................................................................................................................14  
 12. Hypanthium distinctly inflated at the base; petals yellowish to greenish; ovary hairy along lower suture................. C. touranensis   
- Hypanthium not distinctly inflated at the base; petals white; ovary glabrous..................................................................................13  
 13. Inflorescence a corymb; hypanthium glabrous, or with very few hairs at base, 10–15 mm long; petals white, width ≥ 5 mm........................................................................................................................................................................................................ C. glauca   
 - Inflorescence a raceme, or lax and few-flowered; hypanthium sparsely to moderately pilose, slender, 5.5–8.5 mm long; petals yellowish white, width ≤ 4mm............................................................................................................................ C. damiaoshanensis   
 14. Buds with sepals folded to form 5 prominent longitudinal ridges, deflexed from pedicel; flowers zygomorphic; petals white; fertile stamens at least two times longer than the petals; legume straight or slightly curved, tardily dehiscent................ C. longistaminea   
- Buds psilate, without ridges, not deflexed from pedicel; flowers nearly actinomorphic; petals white, pinkish or pink; fertile stamens nearly equal in length to petals; legume straight, indehiscent..........................................................................................................15  
 15. Inflorescence axillary; petals white with pink stripes; legume width 17–23 mm....................................................... C. lakhonensis   
 - Inflorescence terminal; petals white to pink; legume width 30–60 mm......................................................................... C. tenuiflora
description: Published as part of Peng, Xia, Jiang, Kai-Wen, Fang, Tian-Song, Gu, Qiao-Yun, Gu, Shi-Ran, Xie, Zhi, Duan, Lei, Li, Shi-Jin, Wang, Xiang-Ping, Shi, Miao-Miao, Tu, Tie-Yao & Zhang, Dian-Xiang, 2024, Cheniella tsoongii (Leguminosae: Cercidoideae), a rare, critically endangered new species from southern China, pp. 193-202 in Phytotaxa 646 (2) on pages 200-201, DOI: 10.11646/phytotaxa.646.2.8, http://zenodo.org/record/13215377