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单词 dichasium
释义

dichasium


di·cha·si·um

D0204100 (dī-kā′zē-əm, -zhē-əm, -zhəm)n. pl. di·cha·si·a (-zē-ə, -zhē-ə, -zhə) A cyme having two lateral flowers or branches originating from opposite points beneath a terminal flower.
[New Latin, from Greek dikhasis, division, from dikhazein, to divide in two, from dikha, in two; see dwo- in Indo-European roots.]
di·cha′si·al (-zē-əl, -zhē-əl, -zhəl) adj.

dichasium

(daɪˈkeɪzɪəm) n, pl -sia (-zɪə) (Botany) a cymose inflorescence in which each branch bearing a flower gives rise to two other flowering branches, as in the stitchwort. Compare monochasium[C19: New Latin, from Greek dikhasis a dividing, from dikhazein to divide in two, from dikha in two] diˈchasial adj diˈchasially adv

di•cha•sium

(daɪˈkeɪ ʒəm, -ʒi əm, -zi əm)

n., pl. -si•a (-ʒi ə, -zi ə) Bot. a form of cyme in which each stem produces a pair of side stems. [1870–75; < New Latin < Greek díchas(is) a division, derivative of dicházein to cleave (derivative of dícha apart)] di•cha′sial, adj.

Dichasium


dichasium

[dī′kā·zhē·əm] (botany) A cyme producing two main axes from the primary axis or shoot.

Dichasium

 

the inflorescence in plants of the cymose type. The primary axis in dichasium ends in a single apical flower. From the two opposite axils under that flower two lateral branches develop that exceed the primary axis in height and also end in flowers, which blossom later. On each of them in turn, two more lateral branches develop that overtake them in height and end in apical flowers, which blossom still later, and the process continues. Dichasium is typical for many plants of the family Caryophyllaceae and others. Sometimes branching and growth in dichasium is disturbed somewhat and inflorescences form that outwardly do not resemble dichasium (as in so-called false whorls in plants of the family Labiatae).

dichasium


dichasium

(dī-kā′zē-əm, -zhē-əm, -zhəm)n. pl. dicha·sia (-zē-ə, -zhē-ə, -zhə) A cyme having two lateral flowers or branches originating from opposite points beneath a terminal flower.
di·cha′si·al (-zē-əl, -zhē-əl, -zhəl) adj.

dichasium

a CYME where the branches are opposite and approximately equal.
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更新时间:2024/12/22 20:22:32