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1.
描述和图解了浙江蔷薇属的一新变种——大盘山蔷薇,与原变种小果蔷薇的区别在于托叶革质,宿存,具1脉,边缘有腺毛状齿,叶轴密被短柔毛,小叶柄被短柔毛。  相似文献   

2.
瓜叶乌头一新变种   总被引:1,自引:0,他引:1  
本变种与瓜叶乌头的区别是:茎疏被贴伏的短柔毛;小苞片密被贴伏的短柔毛;萼片白色,有淡紫色脉纹,上萼片高1.4—1.7cm,下缘长1.4—1.5cm,瓣片长6—8mm,唇长3—4mm。 本变种的块根在安县、北川县、什邡县大量收购,作中药草乌使用。  相似文献   

3.
该文描述了采自浙江南部庆元县的唇形科(Lamiaceae)香科科属(Teucrium L.)一新种:庆元香科科(T.qingyuanense),并附有线描图。庆元香科科与峨眉香科科(T.omeiense)和香科科(T.simplex)接近,与峨眉香科科的区别在于其茎、花序轴和花梗均密被倒向短柔毛,花萼外面被短柔毛和腺点或腺毛,花冠外面密被腺毛和柔毛,花柱疏被腺毛;与香科科的区别在于茎、花序轴和花梗均密被倒向短柔毛,花萼外面被短柔毛和腺点或腺毛,下唇2齿狭三角形,先端急尖,花冠外面密被腺毛和柔毛,中裂片宽卵形,先端急尖。基于对茎、叶、花萼毛被的扫描电镜观察和ITS序列的系统发育分析均支持庆元香科科作为独立的种。  相似文献   

4.
中国甘草属二新种   总被引:2,自引:0,他引:2  
多年生草本;根与根状茎无甜味。茎直立,带木质,多分枝,高60—100厘米,密被鳞片状腺点,疏生短柔毛。羽状复叶长8—16厘米;叶柄密被鳞片状腺点,腹面密被白色长柔毛;托叶披针形,长5—7毫米,宽2—3毫米,具腺点,无毛;小叶7—15枚,披针形或卵状披针形,长2—5厘米,  相似文献   

5.
本变种与原变种的区别,在于叶大,卵状心形,长20—28厘米,宽15—20厘米,叶基偏斜,上表面密被长柔毛状刚毛,背面密被白色短柔毛,沿叶缘具深绿色环状条纹。 云南:昆明,昆明植物园,栽培。1985年8月,郑若仙85-01(模式,存中国科学院昆明植物研究所标本室)。  相似文献   

6.
杜香     
一、形态特征狭叶杜香(Ledum palustre L.var.angustum N.Busch。)属杜鹃花科多年生木本植物,株高40—50cm,植株有香味;嫩枝密被红棕色柔毛,后渐脱落,老枝深灰色或灰褐色。单叶互生,革质,条形或狭条形,长1—3cm,宽1.5—4mm,先端钝或微尖,基部楔形或钝圆,全缘,明显向下反卷,上面深绿色,多皱纹,中脉下陷,下面密被红棕色柔毛;无柄或具短柄。多花组成顶生伞房花序,花白色,径约1cm;花梗细长,长1—1.5cm,具腺毛;萼片5,分离,宿存;花瓣5,矩圆状卵形;雄蕊10,由基部向上5瓣开裂。花期6—7月,  相似文献   

7.
河南玉兰属一新变种   总被引:2,自引:0,他引:2  
对毛玉兰新变种Yulaniadenudata(Desr.)D.L.Fuvar.pubescensD.L.Fu,T.B.ZhaoetG.H.Tian,var.nov.进行了描述。该变种具有离生单雌蕊密被短柔毛或疏被短柔毛,果密被淡灰色细疣点特征,与玉兰原变种Y.denudata(Desr.)D.L.Fuvar.denudata具有离生单雌蕊无毛,果褐色、具白色皮孔特征相区别。  相似文献   

8.
本变种与原变种牛膝Achyranthes bidentata Blume相似,但全株密被灰白色开展长柔毛。叶片椭圆形,有时倒卵状椭圆形,具细小腺点,先端短渐尖至长渐尖,基部阔楔形,有时钝状楔形;穗状花序较长,长5~15cm;花被片明显或稍不明显三脉。  相似文献   

9.
毛茛科六新种   总被引:1,自引:0,他引:1  
王文采 《广西植物》2016,36(11):1303-1311
该文描述了毛茛科六新种:(1)托里乌头,与阿尔泰乌头近缘,区别为其茎和叶无毛,总状花序极密集,雄蕊花丝多有1或2小齿。(2)门源翠雀花,与大通翠雀花近缘,区别为其茎极短,花序总状,退化雄蕊瓣片不分裂。(3)云台山铁线莲,与裂叶铁线莲近缘,区别为其叶为二回羽状复叶,花较小,雄蕊花丝呈黑色,无脉。(4)黑丝铁线莲,与前种云台山铁线莲在亲缘关系上极为相近,区别为其小叶较小,多呈狭卵形或披针形,聚伞花序也较小,通常只具3花。(5)五台山毛茛,与砾地毛茛相似,区别为其基生叶被柔毛,花瓣蜜槽具鳞片,心皮具短而粗的花柱和小柱头。(6)靖西铁线莲,与宝岛铁线莲在亲缘关系上接近,区别为其茎疏被短柔毛,小叶卵形或狭卵形,不分裂,聚伞花序有1~3花,萼片较大(长1.7~2 cm,宽0.5~0.7 cm)。  相似文献   

10.
王文采 《广西植物》2017,37(4):407-415
该文描述了毛茛科唐松草属五新种:(1)小花唐松草,发现自贵州东北部,与多枝唐松草近缘,区别为其小叶较小,雄蕊较少,花丝较短,呈狭条形。(2)新宁唐松草,发现自湖南南部,与爪哇唐松草近缘,区别为本种的雄蕊花丝呈狭条状棒形,花只含3~6枚心皮。(3)短蕊唐松草,发现自河南东南部,在体态上与爪哇唐松草十分相似,区别为本种的雄蕊很短,花丝呈丝形,花只含4~6枚心皮。(4)毛蕊唐松草,发现自四川北部,与长柄唐松草有密切的亲缘关系,区别为本种的茎和花梗被短柔毛,萼片被缘毛,花药不具短尖头,子房密被短柔毛。(5)小金唐松草,发现自四川西部,与白茎唐松草在亲缘关系上甚为相近,区别为本种的小叶被微硬毛,雄蕊花丝呈狭条形,花药顶端无短尖头或具极小短尖头,心皮较小,长仅2.4 mm,柱头无翅。  相似文献   

11.
报道了产于中国新疆天山的翠雀属(毛茛科)一新种——文采新翠雀花Delphinium neowentsaii C. Y. Yang。该种的叶为肾形,叶柄基部不扩展,花较小,组成稀疏总状花序,花梗被贴伏短柔毛,上萼片的距圆锥状钻形,长13-15 mm,基部宽约3 mm,外面疏被短柔毛,萼片蓝色,与西伯利亚的疏花翠雀花D. laxiflorum DC.很相似,但其花瓣和退化雄蕊均为淡黄色而易于区别。  相似文献   

12.
A new subspecies, Delphinium pentagynum subsp. formsnteranum N. Torres, L. Sáez, Rosselló & C. Blanché, is described from the island of Formentera (pytiusic Islands, Balearic archipelago). The new plant differs typical D. pentagynum by the narrower sepals and smaller size of the corolla, spur, and follicles. Both D. pentagynum subsp. pentagynum and D. pentagynum subsp. formenteranum have 2n= 16 chromosomes and share similar karyotypes. The new taxon is regarded as a schizoendemic and dry island vicariant of Iberian and North African populations of D. pentagynum subsp. pentagynum which probably evolved under insular isolation. After revision of its conservation status, it should be considered as critically endangered (CR) following the IUCN criteria.  相似文献   

13.
Primulina elegans (Gesneriaceae), a new species from Vietnam is described. This species is similar to P. gemella and P. diffusa in having stolons and papillose-hispid leaves, but is easily distinguished from them by having 9–15 cymes and corollas with two brown stripes on the adaxial lip and nine purplish lines on the abaxial lip. Furthermore, Primulina elegans differs from P. gemmella by its broadly infundibuliform corollas with purplish glandular pubescent filaments, and from P. diffusa by having three slightly purplish glandular pubescent staminodes.  相似文献   

14.
赵利清  刘芳  陈宝瑞 《西北植物学报》2011,31(10):2131-2132
描述了白头翁属(毛茛科)一新变种———呼伦白头翁,新变种与原变种的主要区别是:花萼多数,粉红色,矩圆状条形;花梗长5~7 cm。  相似文献   

15.
王文采   《广西植物》2007,27(1):1-28
(1)对毛莨科铁线莲属Clematis的铁线莲组sect.Viticella进行了分类学修订,确定此组包含13种,1亚种和2变种(包括2新种和1新变种等级),写出此组的分类学简史和地理分布;将此组划分为3亚组,4系,写出区分组下各级分类群的检索表,以及各种植物的形态描述,地理分布,生长环境等,并附有多幅插图。(2)特产我国东部的单型毛萼铁线莲亚组subsect.Hancockianae(花具4枚平展,不展宽的萼片,雄蕊无毛)被认为此组的原始群。铁线莲亚组subsect.Floridae(花具5-8枚平展,强烈展宽的萼片,雄蕊无毛,花粉具散孔)和湖州铁线莲亚组subsect.Viticellae(花具4枚渐升,多少展宽的萼片,雄蕊花丝常被缘毛,花粉具3沟)可能均由毛萼铁线莲亚组衍生而出。(3)在我国东部集中分布此组的3亚组,3系的8种,1亚种和1变种,这里是此组的分布中心,也可能是此组的起源中心。  相似文献   

16.
The histological components of the leaf were studied in dried herbarium material of the three Origanum vulgare subspecies (subsp. hirtum , subsp. viridulum and subsp. vulgare ) grown wild in Greece. These three, geographically distinct, taxa showed remarkable differences in their leaves. The leaves of subsp. hirtum grown in the Mediterranean climatic zone of Greece are characterized by thick cutinized outer walls of the epidermal cells and a thick mesophyll with highly developed chlorophyllous tissues. Peltate glandular trichomes and stomata are numerous on bom leaf surfaces. The thickness of the mesophyll decreases in the other two subspecies grown in the northern part of the country, where a Continental type of climate occurs. The number of glandular trichomes and stomata also decreases. Besides these differences, a noticeable reduction in the size of the essential oil-accumulating subcuticular chamber of the glandular trichomes and in the number of the peribasal cells, has also been recorded in die plants of subsp. vulgare and viridulum.  相似文献   

17.
Prunus pananensis Z. L. Chen, W. J. Chen & X. F. Jin, a new species of Rosaceae from central Zhejiang, China is described and illustrated. Micromorphological characters of the indumentum on young shoots, leaves, petioles and peduncles, including scanning electron microscope [SEM] images, are provided. This new species is morphologically similar to P. schneiderianae Koehne in having its young shoots, petioles and pedicels all densely villose, but differs in having bracts persistent, styles glabrous, stipules 8–9 mm long, stamens 28–30 of per flower, and drupes glabrous. The new species is also similar to P. discoidea (Yü & C. L. Li) Yü & C. L. Li ex Z. Wei & Y. B. Chang in having 2 or 3 flowers in an umbellate inflorescence, and bracts persistent and marginally glandular, but it differs in having young shoots and petioles densely covered with yellowish-brown villose trichomes; leaves rounded or slightly cordate at base, the mid-ribs and lateral veins abaxially densely covered with yellowish-brown villose trichomes; and hypanthium ca. 3 mm long, shorter than sepals. The atpB-rbcL and trnL-F intergenic chloroplast spacers are selected for identification of the new and its similar species.  相似文献   

18.
对浙江省石竹科Caryophyllaceae一新变种闭花拟漆姑草(Spergulariamarinavat.cleistogama)进行了描述和绘图。与原变种的主要区别在于本变种托叶三角状卵形,萼片宽度不等,花瓣0~4枚,有的花瓣变为雄蕊,闭锁,雌蕊具0.2~0.3nlm的柄,雄蕊5~7枚,蒴果为宿存的花萼所包被,种子扁平,卵形。  相似文献   

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