盾状的

Secondly, according to the stem and leaf anatomy, leaf epidermis, pollen morphology and floral development, it is found that there are no close relations between Acorus and Typhales, especially in the aspect of floral development. In the course of floral development of A. calamus, neither bracteloe primordium nor common primordium occurs in the whole course. Early development of the flower is strongly unidirectional. Three shield carpels develop into a pistil. In Sparganium fallax, each female flower has a bracteole. The bracteole primordium and the floral primordium originate from a complex structure. A single saccate carpel develops into a pistil. In staminate flowers, petal and stamen primordia initiate spirally.

菖蒲属与香蒲目的茎叶解剖特征、叶表皮特征、花粉特征及花器官发生特点等亦存在着明显区别，特别是花器官发生特点差异尤为显著，如菖蒲属花器官发生过程中，没有苞片原基，也不存在任何形式的复合原基，花被与雄蕊原基均以单向性方式发生，雌蕊由3心皮发育而成，具有"盾状心皮"的特点等，黑三棱属则有苞片原基发生，且苞片原基与雌花原基起源于共同的复合结构，雄花的花被原基和雄蕊原基均以螺旋状方式发生，雌蕊由单心皮发育而成，未发现有2或3个心皮原基或其痕迹的现象，体现出"囊状心皮"的特点。

The results indicate that all of the peltate glandular hairs and head glandular hairs are from an origin—protoderm on the leaf primordium and young leaf, which outgrows on leaf surface and increase radial broad and form the initial cells of the glandular hairs.

研究结果表明，唇形科的腺毛不论是盾状腺毛类还是头状腺毛类，在发育上都是单起源的，即所有的腺毛均起源于叶原基或幼叶上的原表皮细胞。该细胞在叶表面向外突出生长，径向加宽，形成腺毛原始细胞。

Apical appendage of keel peltate or saccate-cucullate; seeds densely hirsute-villous, strophiole absent

龙骨瓣顶端附属物盾形的或囊状兜状；种子密被长硬毛具长柔毛，无种阜 35

The head cell would developed into branchy trichomes if the four cells splited into eight ones not in a level,and the one would developed into peltate trichomes if the four cells splited into eight ones in a level.

若四细胞平周分裂成上下八细胞，将发育成分枝状表皮毛的头部；若继续垂周分裂成同层八细胞，将发育成盾状表皮毛的头部。

According to the shape of head, the glandular hairs were divided into capitate and pehate glandular hairs.

根据腺毛头部形状可把腺毛分为盾状腺毛和头状腺毛，二者均发生得很早，它们的原始细胞都来源于原表皮，一般在茎尖第1和第2片叶原基的原表皮细胞以及茎的1～2节间原表皮细胞中开始发生。

We have established primarily the nominal mothed and classified system acroding to the developmental pathways and the features of the glandular hairs of plants in labiatae in the ontogenesis. They are divided two groups, peltate and head and there are fifteen types.

在个体发育研究的基础上，我们按唇形科腺毛的发育过程和结构特点等，初步制定了唇形科腺毛的命名模式与分类系统，即把已经观察到的唇形科腺毛划分成头状腺毛类和盾状腺毛类两大&类&及其下的15&型&。

Female flowers: perianth tube adnate to ovary, mouth contracted, apex 3- or 4-toothed; staminodes absent; stigma sessile, discoid or peltate, long ciliate hairs along margin; ovule orthotropous.

雌花： 花被筒贴生于子房，口部收缩，顶3或4齿状；退化雄蕊无。柱头无柄，盘状的或者盾形，具长缘毛毛沿边缘；胚珠直生的。

Secondly, according to the stem and leaf anatomy, leaf epidermis, pollen morphology and floral development, it is found that there are no close relations between Acorus and Typhales, especially in the aspect of floral development. In the course of floral development of A. calamus, neither bracteloe primordium nor common primordium occurs in the whole course. Early development of the flower is strongly unidirectional. Three shield carpels develop into a pistil. In Sparganium fallax, each female flower has a bracteole. The bracteole primordium and the floral primordium originate from a complex structure. A single saccate carpel develops into a pistil. In staminate flowers, petal and stamen primordia initiate spirally.

菖蒲属与香蒲目的茎叶解剖特征、叶表皮特征、花粉特征及花器官发生特点等亦存在着明显区别，特别是花器官发生特点差异尤为显著，如菖蒲属花器官发生过程中，没有苞片原基，也不存在任何形式的复合原基，花被与雄蕊原基均以单向性方式发生，雌蕊由3心皮发育而成，具有&盾状心皮&的特点等，黑三棱属则有苞片原基发生，且苞片原基与雌花原基起源于共同的复合结构，雄花的花被原基和雄蕊原基均以螺旋状方式发生，雌蕊由单心皮发育而成，未发现有2或3个心皮原基或其痕迹的现象，体现出&囊状心皮&的特点。

National Emblem: An oval native shield pointed at both ends, flanked on one side by a red-crested white crane and a kob (a buck with a black coat and a white under body) on the other side, both standing on a grassy mound bearing cotton and coffee on either side of a

国 徽：两头尖状的黑色椭圆形乌干达盾，盾的右侧饰有红冠白鹤，左侧饰有白上体、黑下身的雄鹿。

National Emblem: An oval native shield pointed at both ends, flanked on one side by a red-crested white crane and a kob (a buck with a black coat and a white under body) on the other side, both standing on a grassy mound bearing cotton and coffee on either side of a river.

国 歌：《乌干达之歌》 National Anthem： O Uganda 国徽：两头尖状的黑色椭圆形乌干达盾，盾的右侧饰有红冠白鹤，左侧饰有白上体、黑下身的雄鹿。

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。