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Diandria
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Diandria
‖ Diandria Bot. (daɪˈændrɪə) [mod.L. (Linnæus, 1735), f. Gr. type *δίανδρος, mod.L. diandrus, δι- twice, + ἀνδρ-, stem of ἀνήρ man, male: see Monandria, Polyandria.] The second class in the sexual system of Linnæus, comprising all plants having two stamens.1753 Chambers Cycl. Supp. s.v. Diandria..of...
Oxford English Dictionary
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heptandria
‖ hepˈtandria Bot. [mod.L. (Linnæus 1735), f. Gr. type *ἕπτανδρος, mod.L. heptandr-us, f. hepta- + ἀνδρ- stem of ἀνήρ man, male: cf. Diandria.] The seventh class in the Sexual System of Linnæus, containing plants having seven stamens. So hepˈtander, a member of the class Heptandria (Webster 1828). h...
Oxford English Dictionary
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Polyphyly
In contrast, Linnaeus' assignment of plants with two stamens to the polyphyletic class Diandria, while practical for identification, turns out to be useless
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diandrous
diandrous, a. (daɪˈændrəs) Also 8 -ious. [f. mod.L. diandrus (see prec. and monandrous).] 1. Bot. Belonging to the class Diandria; two-stamened.1770 Gray Lett. Wks. 1884 III. 383 Sage-tea..is a poly⁓dynamious plant, take my word; though your Linnaeus would persuade us it is merely diandrious. 1806 J...
Oxford English Dictionary
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Systema Naturae
Diandria
Classis 3. Triandria
Classis 4. Tetrandria
Classis 5. Pentandria
Classis 6. Hexandria
Classis 7. Heptandria
Classis 8.
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di-
▪ I. di-, prefix1 (dɪ, daɪ) repr. L. dī-, reduced form of dis-, used in L. before the consonants b, d, g (usually), l, m, n, r, s + cons., v, and sometimes before j, as in dī-būcināre, dī-dūcĕre, dī-gestio, dī-gressio, dī-jūdicāre, dī-jungĕre and dis-jungĕre, dī-lātāre, dī-minuĕre, dī-missio, dī-num...
Oxford English Dictionary
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Genera Plantarum
Each of the first ten classes (A–K) is named according to the number of stamens, beginning with Monandria (one stamen), Diandria (two stamens), etc. up
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vernal
vernal, a. (and n.) (ˈvɜːnəl) Also 6–7 vernall. [ad. L. vernāl-is (rare), f. vernus pertaining to spring, f. vēr spring, ver n.1 So OF. and F., Prov., Sp., Pg. vernal, It. vernale.] 1. Coming, appearing, happening, occurring, etc., in spring. a. vernal equinox (or † vernal equinoctial): see equinox ...
Oxford English Dictionary
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自然系统
二雄蕊纲(Diandria)
Classis 3. 三雄蕊纲(Triandria)
Classis 4. 四雄蕊纲(Tetrandria)
Classis 5. 五雄蕊纲(Pentandria)
Classis 6. 六雄蕊纲(Hexandria)
Classis 7.
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