pentastichousadj.

Brit.

/pɛnˈtastᵻkəs/, U.S.

/pɛnˈtæstəkəs/

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

Etymology: < scientific Latin pentastichus (1859 or earlier as a specific epithet; < ancient Greek πεντα- penta- comb. form + στίχος row, line: see stich n.) + -ous suffix; compare -stichous comb. form.R. G. Mayne Expos. Lexicon Med. Sci. (1857) gives a Latin form pentastichus.

Botany.

Designating, relating to, or having a spiral arrangement of leaves in which there are five leaves in each turn of the spiral about the stem, and thus five vertical rows of leaves in the phyllotaxis.

ΘΚΠ

the world > plants > part of plant > (defined by) distribution, arrangement, or position > [adjective] > having or consisting of specific number of layers or rows

uniserial1828

uniseriate1831

bifarious1846

trifarious1846

pentastichous1850

tristichous1857

multiseriate1859

tetrastichous1866

trilamellar1900

1850 A. Gray Bot. Text-bk. (ed. 3) v. 143 The pentastichous, quincuncial, or five-ranked arrangement.

1888 G. Henslow Origin Floral Structures ii. 12 It will be discovered that the heptastichous..type arises out of verticils of threes, in precisely the same way as the pentastichous..type does from an opposite and decussate arrangement.

1984 Proc. Linn. Soc. New S. Wales 107 479 Three types of phyllotaxis are described in the genus Dampiera: distichous (1/2), tristichous (1/3) and pentastichous (2/5).

1990 Cryptogamie, Bryologie-Lichénologie 11 163 Two new pentastichous species of Zygodon..are described from high elevation in Venezuela.

This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).

单词	pentastichous
释义	pentastichousadj. Brit. /pɛnˈtastᵻkəs/, U.S. /pɛnˈtæstəkəs/ Origin: A borrowing from Latin. Etymon: Latin pentastichus. Etymology: < scientific Latin pentastichus (1859 or earlier as a specific epithet; < ancient Greek πεντα- penta- comb. form + στίχος row, line: see stich n.) + -ous suffix; compare -stichous comb. form.R. G. Mayne Expos. Lexicon Med. Sci. (1857) gives a Latin form pentastichus. Botany. Designating, relating to, or having a spiral arrangement of leaves in which there are five leaves in each turn of the spiral about the stem, and thus five vertical rows of leaves in the phyllotaxis. ΘΚΠ the world > plants > part of plant > (defined by) distribution, arrangement, or position > [adjective] > having or consisting of specific number of layers or rows uniserial1828 uniseriate1831 bifarious1846 trifarious1846 pentastichous1850 tristichous1857 multiseriate1859 tetrastichous1866 trilamellar1900 1850 A. Gray Bot. Text-bk. (ed. 3) v. 143 The pentastichous, quincuncial, or five-ranked arrangement. 1888 G. Henslow Origin Floral Structures ii. 12 It will be discovered that the heptastichous..type arises out of verticils of threes, in precisely the same way as the pentastichous..type does from an opposite and decussate arrangement. 1984 Proc. Linn. Soc. New S. Wales 107 479 Three types of phyllotaxis are described in the genus Dampiera: distichous (1/2), tristichous (1/3) and pentastichous (2/5). 1990 Cryptogamie, Bryologie-Lichénologie 11 163 Two new pentastichous species of Zygodon..are described from high elevation in Venezuela. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < adj.1850
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