蓼

Pollen material from dried specimens was obtained from the followng herbaria: ANU, ANUB, N, NAS. Pollen of 111 species representing 12 genera was examined in the light microscope and with the scanning electron microscope.

利用光学显微镜和扫描电镜对蓼科12 属111 种的花粉进行了观察和研究，划分出28 个花粉类型，对每个类型做了精确的描述和评价；提供了每个花粉类型的重要鉴别特征。

Cilia of ocrea 1-1.2 cm; stems glabrous, sometimes sparsely hispidulous; leaf blade sparsely appressed hispidulous on both surfaces; achenes 2.5-3 mm.

托叶鞘的缘毛1-1.2厘米；无毛的茎，有时疏生短硬毛的；叶片疏生贴伏具短硬毛在两面；瘦果2.5-3毫米 20 P 。 japonicum 蚕茧蓼

The results showed that extracts from 8 plant species were more inhibitory to S.fuliginea than the others,with EC50 lower than 0.5%.Among the 8 extracts,the preventive effects of 6 plant extracts except Artemisia capillaries and Portulaca oleracea were higher than their curative effects.The preventive effects of 1.25%extract from the 8 plants were higher than that(74.42%) of 100 μg/mL triadimefon.1.25% extract from Cortex phellodendri,P.cablin,Portulaca oleracea,Fructus cnidii and Kadsura japonic exhibited the curative effect of as high as 82% to S.fuliginea,higher than that(78.89%) of 100 μg/mL triadimefon.

其中水蓼、川黄柏、连翘等8种植物提取物对黄瓜白粉病菌具有较好抑制作用，EC50值均小于0.5%，除茵陈和马齿苋外，其他6种植物提取物对黄瓜白粉病的保护效果均高于治疗效果。8种植物提取物在1.25%浓度下对黄瓜白粉病的保护效果均高于化学药剂三唑酮100μg/mL(74.42%)；1.25%的川黄柏、广藿香、马齿苋、蛇床子、南五味子提取物对黄瓜白粉病的治疗效果达到82%以上，高于三唑酮100μg/mL(78.89%)，说明在黄瓜白粉病发生之前或初期使用这8种植物提取物能够达到较好的防治效果。

The larger the niche overlap of two species is, the more similarly resource space they occupy. the niche overlap of Leontopodium leontopodioides and Polygonum viviparum amounts to 0.892 (in the community Ⅰ). This proves that they are very similar in utilizing the resources. In the general community, the niche overlaps among species are very low.

两个种群的生态位重叠值越大，说明它们占据越相似的资源空间，珠芽蓼和火绒草的生态位重叠值高达0.892，说明它们利用资源的相似性程度很高；在总群落中，各种群之间生态位重叠值都很低。

The principal factors of P.pratensis geographical distribution is organic material、organic carbon and total phosphorus,the chemical factor is the Ph value.The type of distribution of P.pratensis in the SRYYL is P.pratensis+ Geranium spp.,P.pratensis+Elymus nutans,Potentilla anserina+P.pratensis, Ligularia virgaurea+P.pratensis,P.anserina+ Aconitum tanguticum+P.pratensis, Deyeuxia spp.+P.pratensis,E.nutans+P.pratensis, Carex moocroftii+P.pratensis,P.pratensis+Capsellabursa-pastoris,P.anserina+L.virgurea,P.pratensis+ Polygonum sibiricum,P.fruticosa+ Scirpus distigmaticus.

对三江源区草地早熟禾种群调查，主要分布的草地类型有：草地早熟禾+老鹳草草地型，草地早熟禾+垂穗披碱草草地型，鹅绒委陵菜+草地早熟禾草地型，黄帚橐吾+草地早熟禾草地型，鹅绒委陵菜+唐古特乌头+草地早熟禾草地型，野青茅+草地早熟禾草地型，垂穗披碱草+草地早熟禾草地型，青藏苔草+草地早熟禾草地型，草地早熟禾+荠草地型，鹅绒委陵菜+黄帚橐吾草地型，草地早熟禾+西伯利亚蓼草地型，金露梅+双柱头镳草草地型。

The nucleus of mature egg cell was located at the micropylar end and a great deal of starch grains were in the cytoplasm surrounding the nucleus.

胚囊发育为蓼型，反足细胞分裂形成反足组织，反足组织含有大量淀粉粒，反足细胞直到胚乳细胞化时才退化，反足细胞在胚和胚乳发育中起着积极作用。

The 28 pollen types of Polygonaceae in China have been arranged in their evolutionary sequence. Evolutionary trends of pollen types of Polygon...

该项研究不仅为化石花粉的研究提供了鉴定依据，而且为中国蓼科孢粉地理学的研究提供了理论基础。

Calligonum mongolicum is in the Polygonaceae Family and Calligonum Genus, mainly distributed over the northwest areas of our country.

沙拐枣属蓼科沙拐枣属多年生灌木，主要分布在我国的西北地区。

Rhubarb - Rhubarb is technically a vegetable (although the United States Customs Court in New York ruled it a fruit in 1947) and belongs to the Polygonaceae family.

大黄 -大黄技术上是蔬菜（尽管美国海关在纽约法院裁定它的果实在1947年）和属于蓼家庭。

Guizhou rich blue grass, which is a Polygonaceae plants, stem about two feet, flowering in July and August harvest.

贵州盛产蓝草，这是一种蓼科植物，茎高约二、三尺，七月开花，八月收割。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失