monocotyledonn.

Brit.

/ˌmɒnə(ʊ)ˌkɒtᵻˈliːdn/, U.S.

/ˌmɑnəˌkɑdlˈidn/

Origin: A borrowing from Latin. Etymon: Latin monocotyledon.

Etymology: < post-classical Latin monocotyledon (usually in plural; J. Ray Methodus Plantarum ed. 2 (1703) 2; < ancient Greek μονο- mono- comb. form + κοτυληδών cup-shaped cavity (see cotyledon n.). Compare French monocotylédones , plural (1763). Compare dicotyledon n.

Botany.

A flowering plant with an embryo bearing a single cotyledon (seed-leaf); a member of the Monocotyledoneae (also Monocotyledonae or Monocotyledones), the smaller of the two major divisions traditionally recognized among angiosperms, comprising such plants (now often called Liliopsida or Liliidae). Cf. dicotyledon n.Monocotyledons typically have parallel-veined (not net-veined) leaves and flower parts in threes or multiples of three; examples include the lilies, orchids, and grasses. Monocotyledons are usually herbaceous, but include the palms.

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > seed > plant having seed > [noun] > monocot, dicot, or polycotyleden

dicotyledon1727

monocotyledon1727

polycotyledon1828

dictyogen1841

monocot1854

homogen1866

dicot1877

monocotyl1877

1727 N. Bailey Universal Etymol. Eng. Dict. II Monocotyledon, which springs from the Seed with a single Leaf at first, as Corn, Tulips, Onions, &c.

1800 tr. E. J. B. Bouillon-Lagrange Man. Course Chem. II. 261 It is chiefly from the seeds of the monocotyledons..that the greater part of the feculæ are extracted.

1813 J. M. Good et al. Pantologia at Acotyledonous The distinction of vegetables into acotyledons, monocotyledons, dicotyledons..has been long made, and is the basis of Jussieu's natural arrangement.

1837 C. F. Partington Brit. Cycl. Nat. Hist. III. 385/1 The palms are arborescent monocotyledons.

1857 A. Henfrey Elem. Course Bot. §750 The stems of Monocotyledons are very generally herbaceous.

1917 Ann. Bot. 31 45 The existence of this vestigial, intrafascicular cambium indicates that Monocotyledons have been derived from a dicotyledonous stock.

1946 A. Nelson Princ. Agric. Bot. iii. 69 With very few exceptions the venation of the leaves of a monocotyledon does not form a network. There are a number of main veins all equal in thickness.

1990 Garden (Royal Hort. Soc.) June 290/1 The borders by the Walled Gardens were reorganised to display monocotyledons.

This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).

单词	monocotyledon
释义	monocotyledonn. Brit. /ˌmɒnə(ʊ)ˌkɒtᵻˈliːdn/, U.S. /ˌmɑnəˌkɑdlˈidn/ Origin: A borrowing from Latin. Etymon: Latin monocotyledon. Etymology: < post-classical Latin monocotyledon (usually in plural; J. Ray Methodus Plantarum ed. 2 (1703) 2; < ancient Greek μονο- mono- comb. form + κοτυληδών cup-shaped cavity (see cotyledon n.). Compare French monocotylédones , plural (1763). Compare dicotyledon n. Botany. A flowering plant with an embryo bearing a single cotyledon (seed-leaf); a member of the Monocotyledoneae (also Monocotyledonae or Monocotyledones), the smaller of the two major divisions traditionally recognized among angiosperms, comprising such plants (now often called Liliopsida or Liliidae). Cf. dicotyledon n.Monocotyledons typically have parallel-veined (not net-veined) leaves and flower parts in threes or multiples of three; examples include the lilies, orchids, and grasses. Monocotyledons are usually herbaceous, but include the palms. ΘΚΠ the world > plants > part of plant > reproductive part(s) > seed > plant having seed > [noun] > monocot, dicot, or polycotyleden dicotyledon1727 monocotyledon1727 polycotyledon1828 dictyogen1841 monocot1854 homogen1866 dicot1877 monocotyl1877 1727 N. Bailey Universal Etymol. Eng. Dict. II Monocotyledon, which springs from the Seed with a single Leaf at first, as Corn, Tulips, Onions, &c. 1800 tr. E. J. B. Bouillon-Lagrange Man. Course Chem. II. 261 It is chiefly from the seeds of the monocotyledons..that the greater part of the feculæ are extracted. 1813 J. M. Good et al. Pantologia at Acotyledonous The distinction of vegetables into acotyledons, monocotyledons, dicotyledons..has been long made, and is the basis of Jussieu's natural arrangement. 1837 C. F. Partington Brit. Cycl. Nat. Hist. III. 385/1 The palms are arborescent monocotyledons. 1857 A. Henfrey Elem. Course Bot. §750 The stems of Monocotyledons are very generally herbaceous. 1917 Ann. Bot. 31 45 The existence of this vestigial, intrafascicular cambium indicates that Monocotyledons have been derived from a dicotyledonous stock. 1946 A. Nelson Princ. Agric. Bot. iii. 69 With very few exceptions the venation of the leaves of a monocotyledon does not form a network. There are a number of main veins all equal in thickness. 1990 Garden (Royal Hort. Soc.) June 290/1 The borders by the Walled Gardens were reorganised to display monocotyledons. This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022). < n.1727
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