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1.
A new species of Boraginaceae, Onosma lhokaensis, is described and illustrated from Xizang, China. The new species closely resembles O. waddellii and O. waltonii in having azure corollas, coherent anthers and glabrous filaments, but differs in having particularly bristly indumentum, observably narrow corolla, longer calyxes and anthers, and remarkable nutlets with stipitate cicatrix. An updated key to the species of Onosma known from Xizang is also provided.  相似文献   

2.
朱一凡  郭林 《菌物学报》2011,30(4):526-528
在海南省炭角菌的调查研究中,发现一个生长于枯死落叶上的炭角菌属新种。它子座单个,顶端不孕,针刺状,柄细长,多毛,表面呈灰色,有圆锥状孔口。子囊壳埋生。通过与其他9种叶生炭角菌进行比较,确定为海南炭角菌 Xylaria hainanensis新种。  相似文献   

3.
Ferula paeoniifolia X. G. Ma & C. Y. Liao sp. nov., from Sichuan Province, Southwest China, is described and illustrated. The new species is most similar to F. kingdon‐wardii Wolff in morphology, but differs significantly in its ternate‐2‐pinnate compound leaves with much broader leaflets. The key morphological characteristics and nuclear ribosomal internal transcribed spacer (ITS) region were also compared between F. paeoniifolia and its relatives.  相似文献   

4.
Here we describe and illustrate a new species, Orchidantha crassinervia sp. nov. (Lowiaceae), from Guangxi Province, China. The species is closely related to O. yunnanensis and O. virosa, but can be distinguished from these species in possessing a very thick midrib of the labellum, fewer flowers per inflorescence and by a shorter plant height. The species is known only from the three populations within 3 km.  相似文献   

5.
Trigonotis leyeensis W . T. Wang is described as new fromnorthwestern Guangxi.  相似文献   

6.
Trigonotis jiaochengensis Q. R. Liu & R. Y. Yan, a new species from Shanxi, China, is described and illustrated here. It is similar to T. peduncularis in having multiple diffuse stems, ovate to elliptic leaf blades, scorpioid cyme with only basal bracts and trigonous‐tetrahedral nutlets, but differs in having slender pedicels that are 5.2–18.4 mm long (vs clavate pedicels 1.5–4.8 mm in T. peduncularis), smooth nutlets with a short carpophore and a flat bottom (vs verrucose nutlets with a long carpophore and convex bottom in T. peduncularis). Morphological characters, including pollen and nutlets, with illustrations, diagnostic comparisons and habitat, are presented.  相似文献   

7.
Nanocnide zhejiangensis X.F. Jin & Y.F. Lu, a new species of Urticaceae from Zhejiang, east China, is described with illustrations. The new species is morphologically similar to Nanocnide japonica in having staminate inflorescence longer than leaves, but differs by having glabrous stems, petioles, peduncles and abaxial leaf surfaces, glabrous perianth lobes of staminate flowers, dorsally glabrous perianth lobes of pistillate flowers, and acuminate or solitary spinose–setaceous at the apex. Analysis based on ITS, atpF–H, atpB–rbcL and trnL–F sequences also demonstrate that Nanocnide japonica is the closest extant relative to the new species.  相似文献   

8.
金佛山附地菜;重庆紫草科一新种   总被引:1,自引:0,他引:1  
王文采   《广西植物》2007,27(2):143-145
四川重庆市南川的金佛山拥有丰富的植物区系,其紫草科附地菜属有5种,1变种:长梗附地菜(Trigonotis mairei(Lévl.)Johnst.),毛果附地菜(T.macrophylla Van.var.trichocarpa Hand.Mazz),西南附地菜(T.cavaleriei(Lévl.) Hand.Mazz.),附地菜(T.peduncularis(Trev.) Benth.ex Bad  相似文献   

9.
Onosma maculata Ranjbar & Almasi, a new Boraginaceae species endemic to Iran, is described and illustrated. The new species belongs to Onosma sect. Onosma subsect. Onosma. It is closely related to O. nervosa Riedl, but is easily distinguished by its spotted stem and peduncle (vs no spots), leaves 14–23 cm long (vs leaves 4–12 cm long), pedicel 5–15 mm long (vs pedicel 3–5 mm long), higher density of hairs, and glabrous nutlet (vs villous). Moreover, meiotic chromosome number and behavior were studied in two populations of the new species and it was found to be diploid with 2n = 2x = 16.  相似文献   

10.
A new species of Rubiaceae, Spiradiclis densa, is described and illustrated from southwestern China. It is similar to S. tomentosa, but differs in the elliptic or oblong leaf blades, distylous flowers and inner sides of corolla tube with dense pubescence near throat. The conservation status of the new species is preliminarily assessed as ‘Vulnerable’ according to IUCN categories and criteria.  相似文献   

11.
Trachyspermum reginei Ajani & Mozzaff. sp. nov., is described and illustrated as a new species from Chaharmahale Bakhtiari province, SW Iran. The new species differs from its closest relative T. confusum, endemic to Afghanistan, mainly by stem, leaf and fruit morphological characters. Its taxonomic relationships with T. podlechii and T. ammi are also discussed. The new species is threatened by different factors and its protection is recommended.  相似文献   

12.
紫草科新分类群   总被引:1,自引:0,他引:1  
王文采 《广西植物》2010,30(4):429-439
描述了中国横断山区紫草科滇紫草属1新种和1新变型,附地菜属1新种和1新变种,微孔草属2新种和齿缘草属1新种。  相似文献   

13.
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   

14.
Two new species of Parnassia, Parnassia zhengyuana M.X. Ren & J. Zhang and P. simianshanensis M.X. Ren, J. Zhang & Z.Y. Liu, have been found in mountainous areas of Chongqing City, southwest China, and are described and illustrated here. Parnassia zhengyuana is found in a limestone cave near Mt Jinfo, Nanchuan District, Chongqing City. This tiny plant has special spoon‐shaped leaves and undivided staminodes with green apices. Parnassia simianshanensis was discovered in Mt Simian, Jiangjin County, Chongqing City. This species grows along streams on red sandstones, i.e. in Danxia landform. It can be easily identified by its unique rhombic leaves and the five‐ or four‐branched staminodes. The conservation status of P. zhengyuana and P. simianshanensis are assessed respectively as ‘Critically Endangered’ (CR) and ‘VU’ (Vulnerable) according to IUCN criteria. The roles of karst and Danxia landforms in the speciation process are discussed.  相似文献   

15.
Molineria jashpurica A.P. Tiwari, Mujaffar & A.N. Shukla (Hypoxidaceae), a new species from the Jashpur district of Chhattisgrah, India is described and illustrated. It is closely similar to M. gracilis and M. trichocarpa, but differs by shorter pseudopetiole, broad and glabrous leaf blade, delicate scape, fewer flowers and clavate stigma. A key for identification of all Molineria species is also provided. The conservation status of the new species is assessed as ‘Critically Endangered’ (CR) according to IUCN red list category and criteria.  相似文献   

16.
17.
Daphne thanguensis sp. nov. from north Sikkim of eastern Himalaya is described and illustrated. It is a narrow endemic related to D. tangutica Maxim. Daphne thanguensis grows in open alpine pastures and differs from D. tangutica by having leaves with revolute margin and a tuft of hairs at apex, ebracteate inflorescence and flowers, calyx lobes with a tuft of hairs at apex and annular, slightly undulate hypogynal disk. The new taxon is also close to D. retusa Hemsl. But can easily be differentiated by its sessile inflorescence, ebracteate flowers and tuft of hairs at leaf apices and calyx lobe apices. A conservation status of the new species in accordance with the IUCN red list categories and criteria is provided and discussed.  相似文献   

18.
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   

19.
A new speciesDactylospora mangrovei is described and illustrated and compared withD. haliotrepha andD. canariensis, all marine inhabiting species.Dactylospora haliotrepha andD. mangrovei are tropical/sub-tropical mangrove species collected in Hong Kong, Malaysia, Taiwan and Thailand, whileD. canariensis was described from temperate waters. A map of the geographical distribution of the three marineDactylospora species is presented.  相似文献   

20.
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