sepal

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sepal
sepal (ˈsɛpəl) [ad. Fr. sépale, mod.L. sepalum (N. J. de Necker, Phytologie philosophique, 1790, p. 55, and Corollarium ad Philosophiam botanicam Linnæi, 1790, p. 18). Necker derives the word from Gr. σκέπη covering; as he refused to acknowledge the distinction between the calyx and the corolla (usi... Oxford English Dictionary
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Sepal
A sepal () is a part of the flower of angiosperms (flowering plants). In some plants, such as Aristolochia, the calyx is the primary whorl, forming a flower up to wide, with one sepal growing to a length of Aristolochia wikipedia.org
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Sepal | Description, Flower, Characteristics, & Floral Organs
sepal, any of the outer parts of a flower that enclose and protect the unopened flower bud.The sepals on a flower are collectively referred to as the calyx. They are sterile floral parts and may be either green or leaflike or composed of petal-like tissue.From their base and along most of their length, sepals remain either separate (aposepalous, or polysepalous) or marginally fused ...
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sepal
sepal/ˈsepl; `sɛpl/ n(botany 植) any of the leaf-like parts which lie under and support the petals of a flower 萼片. 牛津英汉双解词典
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Parts of Flower and Plant (Pistil, Sepal, Stamen and More) With ...
Incomplete Flower. Botanically, a flower is considered to be complete flower if it contains the four main parts of a flower: petals, sepals, stamen, and carpel (also known as a pistil). If a flower lacks any one of these parts, it is an incomplete flower. Rose, hibiscus and tulip are complete flowers because they have all the main flower organs.
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disepalous
disepalous, a. Bot. (daɪˈsɛpələs) [f. Gr. δι- (di-2) twice + mod.L. sepal-um sepal + -ous.] Having or consisting of two sepals.1841 Penny Cycl. XXI. 248/1 If there are two sepals, the calyx is disepalous. 1870 Bentley Bot. 216 Disepalous for a calyx composed of two distinct sepals. Oxford English Dictionary
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sepaline
sepaline, a. (ˈsɛpəlɪn) [ad. mod.L. sepalīn-us, f. sepal-um: see sepal and -ine.] Of or belonging to the sepal of a flower.1857 A. Gray First Less. Bot. (1866) Gloss., Sepaline, relating to the sepals. 1870 Hooker Stud. Flora 11 Aconitum..covered by the sepaline hood. Oxford English Dictionary
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sepalody
sepalody Bot. (ˈsɛpələʊdɪ) [ad. mod.L. *sepalōdium, or f. mod.L. sepal-um sepal + -ode1 + -y, after phyllody.] The reversion of the petals of a flower into sepals by inverse metamorphosis.1887 Cassell's Encycl. Dict. Oxford English Dictionary
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玉山一叶兰
花3-10朵,是两侧对称花,紫红色;背萼片(dorsal sepal)钝长椭圆形,长5-7 mm,宽3-3.5 mm;侧萼片(lateral sepal)开展广,歪斜且呈锐椭圆状,长6-8 mm,宽3-4 mm;花瓣歪斜呈卵形,长6-7 mm,宽3 mm;唇盘自基部溢出,中央为白色,其余皆粉红色;距长 wikipedia.org
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sepaloid
sepaloid, a. Bot. (ˈsɛpəlɔɪd) [ad. mod.L. sepaloid-eus, f. sepal-um: see sepal and -oid.] Of the nature of or resembling a sepal.1830 Lindley Nat. Syst. Bot. 135 Sepaloid petals. 1872 Oliver Elem. Bot. ii. 256 Observe..the sepaloid outer and petaloid inner perianth-leaves of Alisma. Oxford English Dictionary
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aposepalous
aposepalous, a. Bot. (æpəʊˈsɛpələs) [mod. f. Gr. ἀπό away from, off + sepal + -ous.] Having free sepals.1875 [See apopetalous.] Oxford English Dictionary
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牙萼狸藻
其种加词“odontosepala”来源于希腊文“odous”和英文“sepal”,意为“牙齿”和“萼片”,指其齿状萼片。牙萼狸藻原产于非洲热带,存在于刚果民主共和国、马拉威以及尚比亚。牙萼狸藻陆生于潮湿泥炭质的草原中,海拔分布范围为1300米至2200米。花期为四月至九月。 wikipedia.org
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分析以下数据集并预测类别标签:sepal长度为5.1cm,sepal宽度为3.5cm,petal长度为1.4cm,petal宽度为0.2cm。
花萼长度5.1cm,花萼宽度3.5cm,花瓣长度1.4cm,花瓣宽度0.2cm的鸢尾花被分类为setosa。
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特征工程到底是什么?
IRIS数据集由Fisher在1936年整理,包含4个特征(Sepal.Length(花萼长度)、Sepal.Width(花萼宽度)、Petal.Length(花瓣长度)、Petal.Width(花瓣宽度)),特征值都为正浮点数,单位为厘米。 zhihu
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monosepalous
monosepalous, a. Bot. (mɒnəʊˈsɛpələs) [f. mono- + mod.L. sepal-um sepal + -ous. In F. monosépale.] Properly, Having one lateral sepal only; but commonly misused for gamosepalous.1830 Lindley Nat. Syst. Bot. Introd. 24 In Sclerantheæ the calyx is always monosepalous. 1837 P. Keith Bot. Lex. s.v., If ... Oxford English Dictionary
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