The results offer the condition that these plants of Ajuga could be distinguished by size and ornamentation of exhymenine.

結(jié)果表明国产福利最新地址发布页8010，同屬三種植物的形態(tài)特征相似欧美日大黄片，可通過葉形及花期是否具基生葉，花萼的形態(tài)免费黄色a片大全，花冠顏色以及莖的生長(zhǎng)方式和植株被毛情況等予以鑒別国产91精品宾馆；通過對(duì)三種植物的花、根国产黄片精品在线、莖国产原创精品在线、葉及全草粉末的組織構(gòu)造觀察，認(rèn)為種間差異較小www.人妻一级黄四色AV日韩AV，可依據(jù)毛茸的分布及形態(tài)特征和莖的木化程度不同加以鑒別一级A片福利片；對(duì)三者花粉粒進(jìn)行了掃描電鏡觀察，發(fā)現(xiàn)其大小和外壁紋飾具有明顯差異国产综合久偷自，為三者的鑒別提供了有力的依據(jù)wwwwxxxx国产，也為該屬的分類及植物花粉形態(tài)研究提供了花粉形態(tài)學(xué)方面的資料。

The pollen morphology of 5 species of Corydalis from northeast China was observed and compared by SEM.

用掃描電鏡對(duì)東北延胡索極其近緣植物的花粉形態(tài)進(jìn)行了觀察亚洲精品免费线视频观看视频，結(jié)果發(fā)現(xiàn)花粉粒在形狀免费看看黄色片、大小、外壁紋飾色哟哟WWW网址、溝的長(zhǎng)短及寬度等方面均有區(qū)別超碰免费公开人妻人人，從中獲得了東北延胡索及其近緣植物分類方面的孢粉學(xué)依據(jù)。

Pollen morphology of the Chinese monotypic genus Dichotomanthes and its out-group Prinsepia utilis were investigated from the point of view of pollen development. The SEM observation revealed that there is not any change in morphology and sculpture of pollen grains from the young pollen grain seperated from callose of tetraspore to the mature pollen grain in Dichotomanthes tristaniaecarpa. Only the volume of pollen grain increased with maturity.

從發(fā)育的角度研究了中國特有單種屬Dichotomanthes Kurz及與其系統(tǒng)學(xué)研究有關(guān)的外類群Prinsepia utilis的花粉形態(tài)一级毛片一级毛片AAAA级，掃描電鏡觀察顯示Dichotomanthes花粉粒自脫離四分體胼胝質(zhì)膜開始至成熟二核花粉粒不同發(fā)育時(shí)期一级免费视频国产，花粉形態(tài)和外壁紋飾未見變化，僅花粉體積隨成熟度增加而有所增大操美女视频在线网站。

The results showed that the species of Oxalis could be classified on the basis of the shape, the size and exine sculpture of pollen grains.

結(jié)果表明：該屬花粉粒大小天堂干屄免费视频、形狀和外壁雕紋可作為分種的依據(jù)。

Through comparative analysis on the pollen exine ornamentation of Lycoris we think that the pollen characters of Lycoris is relative steady and basically uniform, the shape of pollen grains are all long sphericity, all species have reticulate ornamentation, but there are large varieties between species in Lycoris on these aspects such as the pollen size , Finely reticulate ornamentation or coarsely reticulate ornamentation,psilate muri or curve muri,having spinulose or not and the spinulose position.

通過對(duì)石蒜屬花粉外壁紋飾特征的比較分析www.日本在线播放，認(rèn)為本屬植物花粉特征較為穩(wěn)定国产综合一区二区三区精品，形態(tài)基本一致，均為長(zhǎng)球形花粉粒久久国内免费黄色，花粉外壁均為網(wǎng)狀紋飾最新国产裸模视频视频在线；但在花粉大小、粗網(wǎng)或細(xì)網(wǎng)紋飾色婷婷五月亚洲一区二区91，網(wǎng)脊平滑或彎曲亚洲欧美视频网站，有無小乳突或小瘤以及乳突著生部位等方面在種間有明顯的變化，可以作為區(qū)分種的依據(jù)十八禁无码。3一级A色片。

Combining the previous research on the pollen morphology, the present study indicated that: the plants of Stachyurus shared the common characters in pollen morphology and exine ultrastructure.

結(jié)果表明：旌節(jié)花屬植物花粉形態(tài)的共同特征是：花粉粒球形或近球形，三孔溝综合性天堂在线；外壁具穴狀紋飾久久九一，穴較細(xì)?4自拍视频。煌獗趦?nèi)壁分層明顯欧美骚逼，容易區(qū)分日本mmm，覆蓋層光滑，幾無附屬物亚洲小说图片综合在线专区，柱狀層明顯好男人在线影院官网www，穿孔較少，不形成半覆蓋層日韩网友自拍区在线观看网站。

The sac structure projected through the pollen aperture possesses the typical nature of transfer cell, i. e complex lybrinthian wall ingrowth and abundant mitochondria, RER, dicotysomes and ribosomes under the wall. Its outer surface is closely related to the tapetal protoplast. The accumulation of storaged material in pollen start at the area near the apertures. Above restults indicate the pollen apertures may be the"door"from where nutrition flows into pollen in P. hortorum.

絨氈層物質(zhì)向花粉粒的短途運(yùn)輸明顯的表現(xiàn)在花粉的萌發(fā)孔區(qū)午夜视频久久久久一区免费，一方面形成向外突起的囊腔，另一方面在這里具有發(fā)達(dá)的壁迷宮无码在线观看毛片，而且迷宮下具豐富的線粒體一级毛片一级毛片视频片，RER和高爾基體等細(xì)胞器，此外花粉內(nèi)貯藏物的大量積累首先從萌發(fā)孔附近開始以及萌發(fā)孔處與絨氈層有緊密接觸都說明天竺葵花粉萌發(fā)孔可能是物質(zhì)進(jìn)入花粉的&門戶&黄色视频人人干人。

The pollen morphology of 5 species of Corydalis from northeast China was observed and compared by SEM.

文摘：用掃描電鏡對(duì)東北延胡索極其近緣植物的花粉形態(tài)進(jìn)行了觀察在线图区，結(jié)果發(fā)現(xiàn)花粉粒在形狀、大小欧美噪B视频69、外壁紋飾欧美性爱一级免费大片、溝的長(zhǎng)短及寬度等方面均有區(qū)別，從中獲得了東北延胡索及其近緣植物分類方面的孢粉學(xué)依據(jù)午夜精品无码高清在线。

exine; extine：(花粉粒)外壁

(花粉;胞子的)內(nèi)膜 Endosporium; intine | (花粉粒)外壁 exine; extine | (花粉粒的)外壁 extine

generative cell：生殖細(xì)胞

成熟的小孢子具有2個(gè)退化的原葉細(xì)胞(prothallial)、1個(gè)大的管細(xì)胞(tube cell)和1個(gè)較小的生殖細(xì)胞(generative cell),外壁向兩側(cè)突出形成氣囊. 小孢子囊破裂后,花粉粒散出,隨風(fēng)飄揚(yáng). 在石炭紀(jì)激情性爱在线观看、二疊紀(jì)的地球植被中,除了外貌像蕨的種子蕨之外,

intine：內(nèi)壁

外壁(exine)亚洲是图宗合网、內(nèi)壁(intine)、花粉粒外壁(exine):較厚,硬而缺乏彈性. 主要成分為孢粉素,此外尚有纖維素国产精品不卡无毒在线观看、類胡蘿卜素免费视频XNXXCOM、類黃酮素、脂類及蛋白質(zhì),所以花粉粒常呈現(xiàn)黃精品国偷自产在线视频500、橙色. 外壁的雕紋變化很大,常構(gòu)成美麗的圖案. 這是孢粉學(xué)(Palynology)研究的主要內(nèi)容.

tectum：覆蓋層

基粒棒的頂端擴(kuò)展欧美淫乱a片、聯(lián)結(jié),形成覆蓋層(tectum). 覆蓋層、基粒棒層(baculum)構(gòu)成花粉外壁(exine)的外層(sexine),基足層又稱為花粉外壁內(nèi)層Ⅰ,花粉的質(zhì)膜分泌纖維素物質(zhì),形成外壁內(nèi)層Ⅱ,它與基足層(內(nèi)層Ⅰ)共構(gòu)成花粉外壁內(nèi)層.