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垦利碱蓬-碱蓬属一新种
邢军武
中国科学院海洋研究所
摘要:
垦利碱蓬(新种)Suaeda kenliensis J.W.Xing sp.nov,图1-9。一年生,茎直立,基部直径0.5-1.5cm,高5-40cm,上部多分枝,茎枝有棱纹,有结节。叶无柄,脱落处形成瘢痕和结节。主干木质化,坚韧,似半灌木。主根深可达30-50cm,侧根亦发达,不易倒伏和折断。分枝自叶腋斜出,真叶互生,叶肉质肥厚,圆柱或半圆柱状,直或略弯,叶端尖或钝圆。叶最长可达7cm,通常2-6cm,直径2-5mm,枝顶部叶渐短,长约0.5-2cm,直径1mm左右,通常紫红色、亦有绿色或红绿相间,叶通常脱落前变黄。花被团聚于叶腋,1-5个,花被片5。雄蕊5,花药5,矩圆形纵裂,黄色,有清晰幽香。雌蕊1,柱头2叉近透明白色,花被片5,肉质,紫红色,被果呈肉质球形,成熟时顶端有时可见圆内五角星形。成熟种子圆盘状,棕色,直径约2-3mm,胚呈螺旋状。花期6-9月,果期7-11月。
关键词:  碱蓬属  垦利碱蓬  新种
DOI:10.11759/hykx20180907001
分类号:
基金项目:
SUAEDA KENLIENSIS J.W.XING SP.NOV—— A NEW WOODY SPECIES OF SUAEDA FROM SHANDONG,CHINA
xingjunwu
Institute of Oceanology, Chinese Academy of Sciences
Abstract:
Suaeda kenliensis J.W.Xing sp.nov (See figures 1~9) is an annual plant with an upright stem of which the base diameter is 0.5~1.5cm and the height to 5~40cm. On upper section of the stem are some branches, tenacious and of ribbed grains and nodules. Leaves of the plant have no stalk while cicatrix and nodules shall be formed when leaves fall off. Main part of the plant is lignified to be hardSandStenacious like subshrub. The plant takes main root into soil as deep as 30~50 cm with some strong branch roots, not easily lodging or breaking. Branches grow from leaf axils and leaves alternate with thick mesophyll in the shape of cylinder or semi- cylinder, straight or slightly curve with pointed or rounded leaf apex and maximum length of 7cm; general length to 2~6 cm and diameter to 2~5cm. Leaves at branch top is comparatively shorter to about 0.5~2cm with the diameter around 1mm, murrey colored in general, green, red and green or yellow before falling off. Glomerule grows from leaf axils, no stalk. Stamen 5, anther 5, oblong longitudinal split, yellow colored and with distinct fragrance; pistil 1, stigmaStwo-pronged, perianth tepal 5, chubby, purple colored, angiocarp chubby in spherical shape, and in mature period a pentacle in circle seen on the top. Mature seed is discoid, brown colored and diameter to about 2~3cm and embryo in spiral shape. Of the plant, flowering phase is 6~9 months and fruiting phase 7~11 months.
Key words:  Suaeda, Suaeda  kenliensis J.W.Xing  sp.nov, new  species
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