萼

Stems prostrate, rooting at nodes; inner sepals oblong to elliptic-oblong, distinctly mucronulate.

茎匍匐，节上生根；内部萼片长圆形到椭圆形长圆形，清楚具小短尖。

Sepals distinctly mucronulate, outer concave; corolla pink or pink-purple, with a darker center

清楚的萼片具小短尖，外部凹；花冠粉红色或粉红色紫色，具一个深色的中心 13 Ipomoea littoralis 南沙薯藤

Outer sepals 5-10 mm, mucronulate, glabrous to pilose abaxially, margin ciliate or fimbriate; corolla 1.5-4 cm.

外部萼片5-10毫米，具小短尖，具柔毛背面的无毛到，边缘具缘毛或流苏状；花冠1.5-4 厘米 20

Outer sepals 10-16 mm, not mucronulate, purplish bristly or hirsute abaxially, margin neither ciliate nor fimbriate; corolla 5-7 cm.

10-16毫米的外部萼片，不具小短尖，略带紫色具刚毛或具粗毛，既不具缘毛也不流苏状的边缘；花冠5-7 厘米 21

Stamens 8, distinct, ones opposite sepals nearly as long as petals; filaments with indumentum toward base , gradually tapering from ± broad base to subulate apex, becoming reflexed; anthers obtuse or obtusely mucronulate.

雄蕊8，离生，东西与萼片对生近等长花瓣；花丝近基部被毛，由多少宽的基部到钻形的先端逐渐减少，变得反折；花药钝的或具钝的小短尖。

Sepals acute, acuminate, or obtuse apically, mucronulate or not, not long attenuate, herbaceous, membranous, or leathery; corolla reddish, purplish, lilac to pink, or white.

锐尖，渐尖的萼片，或钝顶部，与否具小短尖，渐狭，草质的长的不，膜质，或革质；花冠带红色，略带紫色，淡紫色的到粉红色，或白色。

Fruit a single-stoned,(1 or)2- or 3-loculed, globose or oblong drupe, base with persistent calyx tube, apex mucronulate; mesocarp fleshy or soft corky; endocarp cartilaginous or woody, locules 1-seeded.

果单个核，(1或)2或3室，核果的球状或长圆形，基部具宿存萼筒，先端具小短尖；中果皮肉质或者柔软的木栓质；内果皮软骨质或者木质，子房室1种子。

Sepals rounded to acuminate, emarginate, or mucronulate but never awned at or near apex; corolla mostly funnelform, or campanulate, sometimes salverform; stamens and pistil mostly included, sometimes exserted.

萼片圆形的到渐尖，微缺，或具小短尖但是从未具芒的在先端或近先端；多数漏斗状的花冠，或钟状，有时高脚碟状；雄蕊和雌蕊多数内藏，有时。

Stems simple or multibranched; leaf blade lanceolate or elliptic-lanceolate to ovate, 5-10 mm wide; racemes opposite to leaves or axillary; bracts ovate-lanceolate, caducous; inner sepals obovate-oblong.

茎单生或多分枝；叶片披针形的或椭圆形披针形到卵形，5-10毫米宽；总状花序与叶对生或腋生；苞片卵状披针形，早落；内部萼片倒卵状长圆形。

Sepals glabrous, sometimes muricate or dentate on veins.

萼片无毛，有时或具牙齿在脉上。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。