首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 0 毫秒
1.
A new species of Primula, P. vallicola Y. Xu, G. Hao & C.M. Hu, is described and illustrated from Sichuan province, China. Based on general morphology the new species is assigned to Primula sect. Aleuritia subsect. Yunnanensis. It is closely allied to P. kialensis, but can be distinguished by its larger stature, leaf shape, and the well‐differentiated petiole. The leaf shape of the new species is ovate to ovate‐elliptic and usually sub‐rounded at base. The new species also resembles P. homogama, but differs in being glabrous rather than with appressed hairs, and with longer petiole.  相似文献   

2.
A new species of Primulaceae, Primula persimilis G. Hao, C.M. Hu & Y. Xu, from Sichuan, China, is described and illustrated. In general morphology it is allied to the species of P. sect. Monocarpicae, characterized by the presence of multi‐cellular hairs, the distinctly petiolate leaves, a campanulate calyx, and a globose or cylindrical capsule with valvate dehiscence. The new species superficially resembles P. tsiangii W.W. Smith, but can be distinguished by its white flowers, longer calyx lobes, and cylindrical capsules.  相似文献   

3.
A new species of Primulaceae, Primula wawushanica G. Hao, C. M. Hu & Y. Xu, from Sichuan, China, is described and illustrated. In general morphology it is clearly allied to P. sect. Petiolares subsect. Davidii, characterized by firmly papery or leathery leaves, with adaxially impressed veins which are often prominently raised and alveolate abaxially. However, from other species of this subsection, P. wawushanica is distinguished by its glabrous and sessile leaves, smaller flowers, and by the shorter scape at flowering time.  相似文献   

4.
A new species of Primulaceae, Primula hunanensis G. Hao, C. M. Hu & X. L. Yu, from Hunan, China, is described and illustrated. Based on its general morphology it clearly belongs to P. sect. Carolinella, characterized by the calyptrate capsules, but can be distinguished by its adaxially glabrous leaves which are much longer than the petioles, blade base broadly cuneate to subrounded, umbellate inflorescence, and glabrous pedicels and calyx.  相似文献   

5.
Primula jiugongshanensis J. W. Shao, a new species from Mt Jiugongshan in Hubei Province, China, is described and illustrated. This species is a biennial glabrous herb with pinnately compound leaves, and affiliated to P. sect. Ranunculoides C. M. Hu. It is distinguished from other species of the section by outer simple leaves ovate, flowers distylous, corolla lobe apex conspicuously emarginate, and lack of bulblets. Molecular phylogenetic analysis of nrDNA internal transcribed spacer sequences (ITS) was conducted and the results also supported the recognition of P. jiugongshanensis as a new species. The species is known from only three separated unprotected populations and is categorized as ‘Endangered’ (EN).  相似文献   

6.
Myosotis wumengensis, a distinct new species endemic to Yunnan Province, China, is described and illustrated. The new species differs from all Myosotis species in China by having exserted anthers and a long corolla tube. Phylogenetic analysis confirms the generic position of the new species. In addition, the pollen morphology of the new species is described.  相似文献   

7.
A new species of Lysimachia (Primulaceae), L. huchimingii G. Hao & H. F. Yan from China is described and illustrated. It is morphologically compared to its most closely related species in Lysimachia subgen. Lysimachia sect. Nummularia ser. Paridiformes.  相似文献   

8.
A new species of Stimpsonia (Primulaceae), S. nanlingensis G.H. Huang & G. Hao, from Guangdong, China, is described and illustrated as the second species in the genus. In general morphology it resembles S. chamaedryoides but can be distinguished by its foliose bracts and a corolla with a shorter tube and shorter truncate or obtuse lobes.  相似文献   

9.
Pterygiella trichosepala (Orobanchaceae) is described and illustrated as a new species endemic to Yunnan, southwest China. It grows in calcareous grasslands or scrubs at elevations of 2000–2600 m a.s.l. This new species is closely related to P. nigrescens Oliv., but clearly differs from the latter by being pilose–hirsute throughout, with stems simple or rarely branched, 10–30 cm tall, and leaves 10–20 mm long and 3–6 mm wide (with L/W ratio 3.5–5.0), racemose inflorescences, and calyx 13–20 mm long and 8–13 mm in diameter; moreover its seed micromorphological features are significantly different from those of P. nigrescens.  相似文献   

10.
Miscanthus subgen. Rubimons (B. S. Sun) Y. C. Liu et H. Peng, a new subgenus of Miscanthus Anderss. (Poaceae) is established and Miscanthus (Rubimons) villosus Y. C. Liu et H. Peng, a new species of this subgenus from southwest Yunnan, China, is described and illustrated. It is closely related to M. paniculatus (B. S. Sun) S. L. Chen & Renvoize, but differs mainly by its villous panicle axis, long callus hair, lanceolate lower lemma and the consistently longer awn of the upper lemma.  相似文献   

11.
Aletris simpliciflora R. Li & S. D. Zhang, a new species of Nartheciaceae from southwest Xizang, China, is described and illustrated. It is similar, and apparently closely related, to A. nana S. C. Chen, but differs by having usually solitary flower, pubescent bract and bracteole, and distinct filaments ca 1.2 mm long.  相似文献   

12.
Cephalanthera humilis X. H. Jin, a new species from Yunnan, China, is described and illustrated. The new species is closely related to C. calcarata but differs from it by having an entire lip without spur at base and the stigma on top of the column.  相似文献   

13.
A new species, Salvia lagochila T. Wang & L. Wang sp. nov. (Lamiaceae) is described from Shangri‐La County in northwestern Yunnan, China. The diagnostic morphological characteristics in relation to closely similar species are discussed. Nutlet micro‐morphology was examined using scanning electron microscopy, and leaf anatomic structures were studied using light microscope. The new species is included in S. subgen. Salvia sect. Eurysphace subsect. Perennes on the basis of its perennial habit, entire upper floral lip and arcuate anther connectives.  相似文献   

14.
Manglietia lawii N. H. Xia & W. F. Liao, a new species of Manglietia from Yunnan, China, is described and illustrated. It is closely related to M. forrestii W. W. Smith, but differs by having villous gynoecium and glabrous tepals.  相似文献   

15.
Ligularia qiaojiaensisY. S. Chen & H. J. Dong sp. nov., known from two localities in northeastern Yunnan province of China, is described, illustrated and compared with similar species.  相似文献   

16.
云南无量山四种报春花属植物的核型研究   总被引:6,自引:0,他引:6  
研究了云南无量山报春花属(Primula)3组4种植物的核型。体细胞中期染色体的数目和核型分别为:波缘报春P.sinuata Franch,2n=2x=22-20m(2SAT)_ 2st,着丝点端化值(T.C.%)为57.51%;无葶脆蒴报春P.sinoexscapa C.M.Hu,2n=2x=22=20m 2sm,T.C.%值为57.78%;滇北球花报春P.denticulata ssp.sinodenticulata (Balf.F.et Forrest)W.W.Smith,2n=2x=22=20m(4SAT) 2st,T.C.%值为56.79%;光叶景东报春P.interjacens var.epilosa C.M.Hu,2n=2x=18=2m(2SAT) 6sm(4SAT) 10st,T.C.%值为67.47%。简要讨论了报春花属植物可能的染色体原始基数和3个组的染色体基数。  相似文献   

17.
A new species of Curcuma L. is described and illustrated, viz. Curcuma gulinqingensis N. H. Xia & Juan Chen. The new species is similar to C. amarissima Roscoe, but differs in the following characters: rhizomes lemon yellow inside; blades with a ca 2 cm broad purple cloud along the midrib above the middle, glabrous; coma bracts pale red, purple except the white base, elliptic, obtuse at apex; fertile bracts pale green with purple around the margin and the top, elliptic, obtuse at apex.  相似文献   

18.
Didymocarpus tonghaiensis J. M. Li & F. S. Wang sp. nov. from Yunnan, China, is illustrated and described. It is morphologically similar to D. stenanthos C. B. Clarke, but differs by having a densely glandular peduncle, 5‐lobed calyx with lobes that are free to the base, larger corolla, anther with white woolly hairs and a densely glandular‐hairy capsule.  相似文献   

19.
Pterygiella luzhijiangensis Huan C. Wang, is described and illustrated as a new species endemic to Yunnan, southwest China. It occurs in thickets of the Luzhijiang hot‐dry valley at elevations of 1000–1300 m a.s.l. This new species is closely related to P. duclouxii Franch., but clearly differs from the latter by its procumbent stems, much branched at the base, 7–20 cm long, the leaves 1.0–2.2 cm long, 0.1–0.2 (0.25) cm wide, the corolla 2.0–2.2 cm long, obviously longer than the calyx, with the lower lip of the corolla much longer than the upper one.  相似文献   

20.
Potentilla jiaozishanensis, a distinct new species of Rosaceae from Yunnan, China, is described and illustrated. Morphologically, it is closely related to P. stenophylla var. stenophylla but clearly differs from the latter by its bidentate leaflets, lanceolate epicalyx‐segments that are longer than the sepals, villose ovaries and achenes. Moreover, the pollen grains of P. jiaozishanensis are markedly different from those of P. stenophylla var. stenophylla in size and shape. The newly described species is endemic to the Jiaozishan Mountains, southwest China.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号