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Scapose perennials with caudices covered with petioles of previous years; trichomes almost exclusively simple, restricted to leaf margins and sepals abaxially; stems leafless or with 1-3 leafy bracts

为第二年的叶柄所覆盖的有茎基的Scapose的多年生植物;毛状体几乎专门简单,对背面叶缘和萼片限制;茎无叶的或具1-3叶状苞片 11 A。 alaschanica 贺兰山南芥

Embryological observations on Crawfurdia delavayi, Tripterospermum cordatum, T. chinense, Gentiana striata and Pterygocalyx yolubilis show that the group under study is greatly diverse in differentiation and development of anther wall, type of ovule and placentae, synergid and antipodal cell in embryo sac, testa and embryogeny etc. The embryological characters are different among Crawfurdia, Tripterospermum and Gentiana Sect.

胚胎学 本文对披针叶蔓龙胆C.delavayi、双蝴蝶T.chinense、峨眉双蝴蝶T.cordatum、条纹龙胆G.striata和翼萼蔓P.voiubilis作了较详细的胚胎学研究,这些类群在花药壁的分化和形成、胚珠和胎座类型、卵器中的助细胞和反足细胞、种皮以及胚发育等特征上存在差异,并且在胚胎学特征上各自拥有原始和进化的性状。

Petals golden yellow, not tinged red, oblong-obovate to broadly obovate, 1.2-1.8 × 1-1.4 cm, 1.5-2 × as long as sepals; margin entire or slightly eroded-denticulate with row of intramarginal gland-dots; apiculus rounded to obsolete.

花瓣金黄色,不微染红色,对宽倒卵形长圆状倒卵形, 1.2-1.8 * 1-1.4 厘米,1.5-2 *等长于萼片;边缘全缘或稍具细牙齿腐蚀的的具成排的近边缘内的腺体小圆点;细尖的圆形到废退。

The result of this experiment showed that expected segmentation result could be achieved by using BP network method. After taking further processing such as picking up bigger areas, erosion and dilation, etc., the result could be better. Moreover, if the teacher signals were changed, the image segmentation of peduncle or sepal could be realized easily.

试验结果表明,利用BP神经网络能较好地实现成熟草莓果实与背景的分离,经过提取大区域和腐蚀、膨胀等算法的进一步处理后,效果更好;而且,只要改变训练时的教师信号,即可实现对草莓果梗、萼片等图像的分割。

Stamens 8, distinct, ones opposite sepals nearly as long as petals; filaments with indumentum toward base , gradually tapering from ± broad base to subulate apex, becoming reflexed; anthers obtuse or obtusely mucronulate.

雄蕊8,离生,东西与萼片对生近等长花瓣;花丝近基部被毛,由多少宽的基部到钻形的先端逐渐减少,变得反折;花药钝的或具钝的小短尖。

One hundred and thirty four families, 578 genera and 1197 species are recorded in this area. According to the information of historical geology and natural conditions, the composition of seed plant flora and the areal-types of genera were analyzed. The results showed that its origin was rather ancient and its geographical compositions were complicated. There were many species of rare and endangered plants, e.g. Taxus chinensis var. mairei, Bretschneidera sinensis, Emmenopterys henryi, Fokienia hodginsii, Torreya grandis, Phoebe bournei, Ormosia henryi, and so on. Most of these plants had high value in economics and scientific research. According to statistics and analysis of genera in the present flora, 578 genera were divided into 14 areal-types. The ratio of tropical and temperate genera was respectively 48.6% and 49.2%, so its flora was characterized by transitional floristic elements, and in wide connection with the world.

该地区植物种类丰富,共有野生种子植物134科、578属、1197种;根据地史资料和自然条件,通过对种子植物种类的组成和分布区类型的分析,认为该区系起源古老,区系成分复杂;珍稀特有植物多,如南方红豆杉、钟萼木、香果树、福建柏、榧树、闽楠、花榈木等大量古老树种,并且绝大多数具有重要的经济价值和科研价值;区内578属可分为14个类型,热带和温带分布的属分别占48.6%和49.2%,具较明显的南北过渡的现象,与世界各地有广泛的联系。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力