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宁夏枸杞属(茄科)一新种和一新变种

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2012年01期
页码:
5
栏目:
出版日期:
2012-01-25

文章信息/Info

Title:
A new species and a new variety of Lycium (Solanaceae) from Ningxia, China
作者:
陈天云1 蒋旭亮1 李清善1 张志耘2* Joongku LEE3
1.宁夏农业环境保护监测站, 宁夏 银川 750001, 中国; 2.中国科学院 植物研究所 系统与进化植物学国家重点实验室, 北京 100093, 中国; 3.韩国生物科学与生物工艺学研究所, 大田 305806, 韩国
Author(s):
CHEN TianYun1 JIANG XuLiang1 LI QingShan1 ZHANG ZhiYun2* Joongku LEE3
1.Ningxia Agriculture Environmental Monitoring Station, Yinchuan 750001, China; 2.State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China; 3.Korea Research Institute of Bioscience and Biotechnology, Daejion 305806, Korea
关键词:
茄科 枸杞属 小叶黄果枸杞 新种 密枝枸杞 新变种 宁夏 中国
Keywords:
Solanaceae Lycium L.parvifolium new species L.barbarum var.implicatum new variety Ningxia China
分类号:
Q949.4
DOI:
-
文献标识码:
A
摘要:
描述了宁夏茄科枸杞属一新种小叶黄果枸杞和一新变种密枝枸杞。小叶黄果枸杞与宁夏枸杞相接近,但前者枝条成“之”字形曲折,叶片较小,条形、条状披针形、条状倒披针形或狭椭圆形,花1~2朵与叶一起簇生于短枝顶端,花萼杯状或筒状,常2浅裂,裂片边缘无毛;花冠筒部与冠檐近等长,雄蕊着生于花冠筒的喉部,花丝连同花冠无毛或在基部仅被稀疏短柔毛,浆果扁球形或椭圆球形,常为淡黄色,近透明,长6~10 mm,直径6~8 mm,种子5~8枚而与后者明显不同。在外部形态上,小叶黄果枸杞与新疆枸杞和土库曼枸杞也比较接近,但新疆枸杞和土库曼枸杞的枝条不成“之”字形曲折,花常2~3朵或更多与叶一起簇生于短枝顶端,花冠筒部长约为檐部裂片长的2倍,雄蕊着生于花冠筒的近中部,浆果红色。尤其是土库曼枸杞的花萼为宽钟形,常4~5裂,花冠裂片边缘有短而稀疏的缘毛而明显有异于小叶黄果枸杞。宁夏枸杞的变种密枝枸杞与原变种的区别在于前者植株分枝多而密,叶片小,狭长椭圆形、倒披针形或匙形,长1~1.8 cm,宽1.5~2.5 mm;雄蕊着生于花冠喉部,长短不等,其中两枚较短,其余3枚较长,花丝连同花冠无毛或在基部仅被稀疏短柔毛;浆果卵球形或椭圆形,长5~8 mm,直径3~6 mm,淡紫色,近透明,多汁,味甜,种子2~4粒。
Abstract:
〗 A new species of the genus Lycium L.,L.parvifolium and a new variety L.barbarum var.implicatum were described from Zhongning,Ningxia Province,western China. L.parvifolium was closely related to L.barbarum but differs from the latter by the branches zigzag,leaves comparatively small,1-2.5(-3)cm long,1.5-2(-3)mm wide,flowers 1-2,fasciculate on shortbranches with leaves,calyx cupular or tubular,stamens inserted at the throat of corolla tube,filaments along with corolla glabrous or sparsely pubescent;berry usually pale yellow,nearly translucent,compressedglobose or ellipsoidal,6-10 mm×6-8 mm,seeds 5-8. L.parvifolium was also closed to L.dasystemum and L.turcomanicum,but in the latter two species,the branches not zigzag,flowers usually 2-3 or more fasciculate on shortbranches with leaves,corolla tube about 2 times as long as limb and lobes,stamens inserted at the nearly middle of corolla tube,berry usually red. Especially,in L.turcomanicum,calyx widely bellshaped,usually 4-5lobed,corolla lobes sparsely ciliate at margin. L.barbarum var.implicatum differed from L.barbarum by the branches many and densely arranged,leaves comparatively small,1-1.8 cm long,1.5-2.5 mm wide;stamens inserted at the throat of corolla tube,unequal in length,two of them shorter,the others longer,berry pale purple,nearly transparent,ovoid or elliptical, 5-8 mm long,3-6 mm in diam.,sweet,seeds 2-4.

参考文献/References

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2012-01-25