萼片的

Flowers small to medium-sized, bracteate and often bracteolate, bisexual or unisexual, actinomorphic or rarely zygomorphic, hypogynous to epigynous, floral cup shallow to urn-shaped, sometimes absent; sepals 4 or 5(–10), sometimes absent, imbricate, usually persistent; petals absent or 4 or 5, yellow, white, greenish or red, often ribbonlike and circinate in bud, caducous; stamens 4, 5, or many, free, rarely arranged in 2 whorls with the inner whorl staminodal, development of polyandrous androecia centripetal or centrifugal; anthers basifixed, thecae mostly bisporangiate, each opening by two valves or a simple longitudinal slit, or monosporangiate and opening by a single valve (Exbucklandia, Hamamelis and the genera of the S hemisphere), connective protruding; disk scales sometimes present between stamens and carpels.

花小对中型，具苞片和通常，萼片4或5(-10)，有时无，覆瓦状，通常宿存；花瓣无或者4-5，黄色，白色，带绿色或者红，通常在芽期带状的并且拳卷，早落；雄蕊4，5，或者很多，离生，很少2轮生并且退化雄蕊内部轮生，多雄蕊的雄蕊群向心或离花药基着大多为的囊bisporangiate，以二裂爿或一单纵裂缝每开阔的，花盘鳞片有时片在雄蕊和心皮之间存在。

Floral tubes prominently undulate-winged from sinus of sepals, wings attenuate on pedicellate floral base; floral tubes densely white pubescent; epicalyx absent.

在有花梗身上从萼片，翅渐狭的凹缺波状具翅的显著的花被管花的基部；浓密的花被管白色短柔毛；副萼缺席。 3 L。 villosa 毛紫薇

Leaves petiolate (0.5-1.5 mm), narrowly elliptic to oblong, not reticulate-veined but with conspicuous intramarginal vein; sepals persistent, ovate to narrowly lanceolate, not leaflike; capsule 9-15 mm, bright red at first when maturing.

叶具叶柄(0.5-1.5毫米)，狭椭圆形到长圆形，网状脉但是具明显的边脉的不；萼片宿存，卵形到狭披针形，不叶状；成熟时最初的蒴果9-15毫米，鲜红色。 13 H。 acmosepalum 尖萼金丝桃

Leaves entire; bracts navicular; outer sepals elliptic-spatulate, apex obtuse; corolla salverform, pink or purple

叶全缘；苞片舟形；外部萼片匙形椭圆形，先端钝；花冠高脚碟状，粉红色的或紫色 10 Ipomoea pileata 帽苞薯藤

Leaf blade veins adaxially raised or slightly impressed, surface not rugose; bracteoles and sepals fewer than 10 7-13 in C.

叶片脉正面突起或稍凹陷，表面不具皱纹；小苞片和萼片更少的uhan 10在C。

Leaf blade veins adaxially deeply impressed, surface rugose; bracteoles and sepals 12-17, inside velutinous.

正面深深凹陷的叶片脉，表面具皱纹；小苞片和萼片12-17，里面短绒毛。

Female flowers with an entire bract adnate to ovary, free at apex; bracteoles 2, adnate to ovary, free at apex; sepals 4, adnate to ovary, free at apex; style elongate with recurved branches; stigmas carinal, 2-lobed, plumose.

雌花具一全缘的苞片贴生于子房，离生在先端；小苞片2，贴生于子房，免费在先端；萼片4，贴生于子房，离生在先端；花柱拉长具下弯的分枝；柱头carinal，2裂，羽状。

Pedicel covered by bracteoles; bracteoles and sepals imbricate,± caducous after anthesis, crustaceous, margin scarious.

小苞片盖住的Pedicel；小苞片和萼片成鳞状，±早落的在花后，壳质，边干膜质。

Flowers yellowish to greenish, rarely brightly colored, small, bisexual or unisexual, rarely polygamous,(4 or)5-merous, hypogynous to epigynous, in mostly axillary, sessile or pedunculate cymes, or reduced to few in fascicles. Calyx tube patelliform or hemispherical to tubular, sometimes absent, at rim with calyx, corolla, and stamens; sepals 4 or 5, valvate in bud, triangular, erect or ± recurved during anthesis, adaxially often distinctly keeled, alternate with petals.

对带绿色淡黄的花，很少明亮染色，单性，很少杂性的小，两性或，(4或)5瓣，萼筒小盘状或者半球形到管状，有时无，在凸缘有花萼，花冠和雄蕊；萼片4或5，芽期镊合状，三角形，直立或者在花期弯曲，正面通常显著凸起，与花瓣互生。

Bracteoles small, lunate, semiorbicular, or broadly ovate; inner 5 or 6 bracteoles ± persistent on young fruit, sepaloid, suborbicular, margin membranous.

小苞片小，新月形，半圆形，或者宽卵形；内部5或6小苞片多少在年轻的果上宿存，萼片状，近圆形，边缘膜质的。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐