茎状

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 leaf is large, intimate circle, part is born cauline top, palm state divides mid, lobation is linear wrap around needle form, gradually pointed, topmost 2 crack, two side provide petiole dentate spinule, halberd dash forward apparent, spadix armpit is unripe, bigger, individual plant of different of male and female, female flower is big, globose, helix shape is worn be born on spicule axis; Male flower is small, yellow, move unripe Yu Xiaobao piece in sunken acupuncture point, fructification is close globose, diametical 10-20 centimeter, black Brown, exocarp is smooth, mesocarp is thicker, fiber is qualitative, endocarp is by 1-3 hard osseous divides pit composition.

叶大型，近圆形，集生茎顶，掌状分裂到中部，裂片线状披针形，渐尖，顶端2裂，叶柄两侧具齿状小刺，戟突明显，肉穗花序腋生，较大，雌雄异株，雌花大，球形，螺旋状着生于小穗轴上；雄花小，黄色，着生于小苞片的凹穴里，果实近球形，直径10-20厘米，黑褐色，外果皮光滑，中果皮较厚，纤维质，内果皮则是由1-3枚硬骨质的分果核组成。

Bulb usually solitary, globose, ovoid-globose, or ovoid (if cylindric to ovoid-cylindric, then leaves thick, terete, and fistulose); rhizomes obscure.

通常鳞茎单生，球状，卵球状球形，或卵球形(如果圆筒状到卵球形圆筒状，然后叶厚，圆柱状，和中空)；根状茎不明显。

Basal leaves rosulate; petiole 1-10(-15) cm; leaf blade broadly oblanceolate, oblong or lanceolate in outline, pinnatisect, pinnatifid, or runcinate,(2-)5-20(-35)×(1-)2-8(-10) cm; lateral lobes (3 or)4-6(-8) on each side of midvein, smaller than terminal one, oblong or lanceolate, entire, dentate, or lobed. Uppermost cauline leaves with narrowly linear to filiform lobes.

基生叶莲座状；叶柄1-10(-15)厘米；宽倒披针形的叶片，长圆形或披针形轮廓，羽状全裂，羽状半裂，倒向羽裂的或，( 2-)5-20(-35)*(1-)2-8(-10)厘米；侧面裂片(3或者)4-6(-8)在中脉两边各，最上部的茎生叶具狭线形到丝状裂片。

Antherodes 3-sect; panicles terminal or cincinni numerous and aggregated in spathelike involucral bracts (in latter case pedicels with sheathlike, membranous bracteoles); plants terrestrial herbs, mostly without elongate and horizontal rhizomes.

Antherodes 3全裂；顶生的圆锥花序或蝎尾状聚伞花序多数和在佛焰苞状总苞片内聚生(在后半箱花梗具鞘状，膜质内)；植株陆生草本，多数没有拉长和水平根状茎。

Herbs, perennial or rarely annual, terrestrial or epipetric, often rhizomatous, stemless or with simple or branched stems.

一年生草本，陆生的多年生草本或很少或，根状茎的通常，无茎或具单一或分枝茎。

Herbs, perennial, epipetric, epiphytic, or terrestrial, rhizomatous, stemmed or stemless.

多年生草本，岩生，附生的，陆生，根状茎的或，无茎的茎或。

Ovules 20-22 per ovary. Fruit cylindric, 0.8-2 cm × ca. 1 mm, straight, terete, strongly torulose, pubescent with short-stalked, forked or 3-rayed trichomes; style ca.

圆筒状的果，0.8-2厘米*约1毫米，直，圆柱状，强烈近念珠状，短茎的短柔毛具，分叉或伞辐毛状体；花柱长约1毫米；柱头有点2裂。

For example, the basic angiosperm stem is vertical and elongated, but some cacti have swollen water-storing stems, while other xerophytic plants that have lost their leaves during the course of evolution have evolved flattened leaflike stems for photosynthesis, e.g.

例如被子植物的茎是垂直的，伸长的，但一些仙人掌具有膨大的能够储水的茎，另一些旱生植物在进化的过程中失去了叶子，但又发展为利用扁平叶状的茎来进行光合作用。

The lesions are dark brown, water-soaked, and girdle the stem, causing the stem to collapse and die.

茎部病灶为黑褐色、水浸状且环绕茎部时会引起茎部枯萎死亡。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。