生叶

Leaves simple; petiole 5-15 mm; leaf blade adaxially dark green and nitid, obovate, 6-11 × 3-7 cm, papery, abaxially sparsely pubescent, crinite in axils of lateral veins, adaxially sometimes pubescent on midvein, lateral veins 8-15 pairs, straight or not, branched far away from margin, terminal veins running into teeth, attenuate from middle to base, upper margin undulate-serrulate, apex rounded or subtruncate, tip shortly acute. Panicle terminal, 9-30 × 10-20 cm, 4 × branched, pubescent.

单叶 叶柄5-15毫米；叶片正面深绿色和有光泽，倒卵形， 6-11 * 3-7 厘米，纸质，背面稀疏短柔毛，具长软毛的在侧脉腋处，在中脉上正面有时短柔毛，侧脉8-15 对，直与否，远离边缘的分枝，圆锥花序顶生， 9-30 * 10-20 厘米，4回分枝，短柔毛。

Using nuclear DNA C-values for 539 angiosperms in China, we examined the variation of these values among growth forms and taxonomic groups and the relationship of these values with invasiveness. Mean DNA C-value of the 539 angiosperm species was 4.06 pg. Mean DNA C-value was(1) significantly lower for woody species (1.84 pg) than for herbaceous species(5.02 pg);(2) significantly lower for 360 dicots (2.20 pg) than for 179 monocots (7.80 pg);(3) significantly lower for annuals (2.78 pg) than for perennials(6.65 pg);(4) significantly lower for 134 weed species (1.93 pg) than for herbaceous non-weeds (6.75 pg) and for several families that have an unusually high proportion of weed species;(5) significantly lower for 47 exotic weed species (1.76 pg) than for 134 native weeds (1.93 pg), but significantly lower than that of "non-weedy" herbaceous species (6.75 pg);(6) lower for weeds than for "non-weedy" species in same genus or family; and (7) in herbaceous species, generally lower for weedy compared to "non-weedy" species, with some exceptions such as Avena fatua, whose DNA C-value is as high as 14.15 pg, contrarily, and some "non-weedy" herbaceous species in Cruciferae and Cucurbitaceae with very low values.

统计了中国境内有分布的539种被子植物的DNA C-值，分析了它们在不同分类群、生活型、倍性、生活史类型以及在杂草和非杂草类群中的分布情况，主要结果如下：(1)539种被子植物DNA C-值平均为4.06 pg，其中木本植物的DNA C-值平均为1.84 pg，低于草本植物的平均值(5.02 pg)；(2)双子叶植物(360种)的DNA C-值平均为2.20 pg，极明显地小于单子叶植物(179种)的平均值(7.80 pg)；(3)1年生植物的DNA C-值平均为2.78 pg，明显小于多年植物的平均DNA C-值(6.65 pg)；(4)134种杂草的DNA C-值平均为1.93 pg，明显小于非杂草草本植物的平均值(6.75 pg)，含杂草较多的科，平均DNA C-值相对较小；(5)统计的47种入侵杂草的DNA C-值平均为1.76 pg，略小于134种杂草的平均DNA C-值(1.93 pg)，极显著地小于非杂草性草本植物(6.75 pg)；(6)以科为单位，不同科的DNA C-值存在着极大的差异；(7)DNA C-值与染色体倍性的关系并不明显，但是，随着倍性的增加，基因组变小；(8)在同一科、属中，与非杂草相比，典型杂草的DNA C-值往往偏小；(9)总体上杂草或杂草性强的植物，它们的DNA C-值比非杂草性植物的要小。

Leaves cuneate at base; achenes ellipsoid, trigonous; styles 3, connate below middle.

叶楔形的在基部；瘦果椭圆体，三棱；花柱3，合生的中间以下。

Umbels simple or compound; peduncles racemous, cymous or corymbose-branched; bracts foliaceous, usually serrate; bracteoles small, entire, rarely lobed; umbellules with both sessile or subsessile, bisexual flowers and pedicellate, staminate flowers.

伞形花序单生或复合；花序梗小总状花序，聚伞花序的或伞房状分枝；苞片叶状，通常使成锯齿波；小苞片小，全缘，很少有裂；有两无柄或近无柄的小伞形花序，两性花和有花梗，雄花。

Inflorescences axillary or basal to leaves, cymulose to thyrsiform .

花序腋生或位于叶基部，聚伞花序到聚伞圆锥花序状。

All sounds, texts, and images on this blog by Yen-Ting Hsu and Yannick Dauby, published under Creative Commons License.

部落格中所有声音、文字和影像由许雁婷与澎叶生撰写、拍摄、录音，内容采用创用CC条款授权。

Leaf blade 1.4-3.2 × as long as broad, base not decurrent on petiole

叶不具腺具点；叶柄狭翅；苞片疏生腺毛。

Leaves alternate, odd-pinnate [or rarely digitately 3-foliolate and/or 1-foliolate].

叶互生，奇数羽状 [或很少掌状3小叶和/或单身复叶]。

Leaves opposite, 1-foliolate [or digitately 3-foliolate].

叶对生，单身复叶 [掌状的或3具小叶 ]。

Leaves opposite , digitately 3-foliolate or 1-foliolate.

叶对生 ，掌状3具小叶或者单身复叶。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了