茎状

Leaves paripinnate, alternate, 25-40 cm with petioles; axis and petioles grayish yellow tomentose; leaflets usually 4 pairs, opposite; petiolules 3-4 mm, densely tomentose; blades adaxially deep green, oblong or ovate-oblong, 13-30 × 5-11 cm, papery, abaxially sparsely tomentose along midveins and lateral veins, adaxially sparsely tomentose along midveins, or glabrous on both sides, lateral veins 17-22 pairs, prominent on both sides when dry, base slightly cordate, margin entire, apex caudate-acuminate. Inflorescence racemose or thyrsoid, on stems and old branches, 1.5-4 cm, densely grayish yellow to grayish brown pubescent.

偶数羽状的叶子，互生，25-40厘米叶柄；轴和叶柄淡灰黄色被绒毛；通常的小叶4 对，对生；小叶柄3-4毫米，密被绒毛；叶片正面深的绿色，长圆形或卵形长圆形， 13-30 * 5-11 厘米，纸质，沿着中脉和侧脉被绒毛的背面稀疏，正面沿着中脉的稀疏绒毛，花序总状或聚伞圆锥状的，在茎和老枝上生，1.5-4厘米，密被淡灰黄色到淡灰棕色短柔毛。

Basal and lower cauline leaves petiolate; petiole 2–7 cm; blade triangular-ovate to ovate-lanceolate in outline, up to 20 × 17 cm; pinnae ovate-lanceolate, 2–6 × 1–2.5 cm.

基部和下部茎生叶peti？ olate；叶柄2-7厘米；叶片三角状心形到卵状披针形轮廓，可达20×17厘米；羽片卵状披针形， 2-6 * 1-2.5 厘米。

Stem leaves alternate or opposite, linear-lanceolate to ovate, pinnatifid to pinnatisect.

茎生叶互生的或对生，线状披针形的到卵形，对羽状全裂羽状半裂。

Stem leaves alternate, long petiolate, ovate-lanceolate, large, pinnatipartite to pinnatisect; rachis winged; segments remote.

茎生叶交替，具长叶柄，卵状披针形，大，对羽状全裂的羽状深裂；轴具翅；裂片遥远。

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。

Fruiting pedicels erect or ascending, often subappressed to rachis, densely pubescent; racemes bracteate at least basally; stems prostrate or rarely ascending; uppermost leaves 1-pinnatisect or pinnatifid; fruit terete; ovules 10-16 per ovary

果梗直立或上升，通常近贴伏于轴，密被短柔毛；具苞片的总状花序至少基部；茎匍匐或很少上升；最上部的叶1羽状全裂的或羽状半裂；果圆柱状；每子房胚珠10-16 1 S。 annua 中亚羽裂叶荠

Rhizome terete, 3--5 mm thick; leaves subobtuse to acute at apex; perianth cylindric; peduncle 2--6 mm; plants terrestrial

根状茎圆柱状，3 --5毫米厚；叶微钝到锐尖在先端；花被圆筒状；花序梗2 --6毫米；植株陆生 31 POLYGONATUM prattii 康定玉竹

Herbs perennial, rarely shrubby or treelike, often with bulbs, corms, rhizomes, or tubers.

多年生草本，很少灌木状或者乔木状，通常有鳞茎，球茎，根状茎或者块茎。

Sometimes armed with stinging hairs; epidermal cells of leaves, sometimes stems, perianths mostly with prominent cystoliths punctiform to linear; Leaves alternate or opposite, stipules present, rarely absent; leaf blade simple. Inflorescences cymose, paniculate, racemose, spicate, or cluster-capitate, usually formed from glomerules, sometimes crowded on common enlarged cuplike or discoid receptacle, rarely reduced into a single flower. Flowers unisexual, rarely bisexual in partial flowers; actinomorphic, very small,(1-)4- or 5-merous, rarely perianth absent in female flowers.

有时具有蛰毛的刺；叶的表皮细胞，有时茎和花被的表皮细胞大部分有显著的点状或线形的乳状体；叶互生或者对生，托叶有，很少无；单叶花序聚伞状，圆锥状，总状，穗状，或者丛生头状花序，花单性，部分花两性；辐射对称，小，(1-)4-或者5瓣，很少在雌花内无花被。

Rhizome repeatedly branched, surface densely covered with warts and scattered stellate lenticels; branches obovoid-globose to cylindric.

根状茎反复分枝，表面密被瘤和散布星状皮孔；分枝倒卵球形球状的到圆筒状。

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。