paratheciumn.

Brit.

/ˌparəˈθiːsɪəm/, U.S.

/ˌpɛrəˈθisiəm/

Inflections: Plural parathecia.

Origin: Formed within English, by derivation. Etymons: para- prefix¹, -thecium comb. form.

Etymology: < para- prefix¹ + -thecium comb. form.

Botany.

An outer, hyphal layer of an apothecium of a lichen.

ΘΚΠ

the world > plants > particular plants > lichen > [noun] > part(s) of

pelt1759

pelta1760

scutellum1760

scyphus1777

shield1796

podetium1814

apothecium1830

cistella1832

rhizine1832

scypha1832

soredium1836

amphigastria1842

gonidium1845

macrogonidium1853

hypothallus1855

crustaceous lichens1856

pycnide1856

perianth1857

isidium1866

thamnium1866

endospore1875

perigynium1882

pseudocyphella1882

thecium1882

parathecium1921

soralium1921

1921 A. L. Smith Lichens iv. 157 At the base of the apothecium there is a weft of light- or dark-coloured hyphae called the hypothecium, which is continued up and around the sides as the parathecium merging into the ‘proper margin’.

1953 Ann. Missouri Bot. Garden 40 296 Laurera... Pseudostromata containing two or more perithecia with carbonaceous parathecia.

1979 Bull. Torrey Bot. Club 106 262/2 Parathecium hyaline to very pale brown.

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

单词	parathecium
释义	paratheciumn. Brit. /ˌparəˈθiːsɪəm/, U.S. /ˌpɛrəˈθisiəm/ Inflections: Plural parathecia. Origin: Formed within English, by derivation. Etymons: para- prefix¹, -thecium comb. form. Etymology: < para- prefix¹ + -thecium comb. form. Botany. An outer, hyphal layer of an apothecium of a lichen. ΘΚΠ the world > plants > particular plants > lichen > [noun] > part(s) of pelt1759 pelta1760 scutellum1760 scyphus1777 shield1796 podetium1814 apothecium1830 cistella1832 rhizine1832 scypha1832 soredium1836 amphigastria1842 gonidium1845 macrogonidium1853 hypothallus1855 crustaceous lichens1856 pycnide1856 perianth1857 isidium1866 thamnium1866 endospore1875 perigynium1882 pseudocyphella1882 thecium1882 parathecium1921 soralium1921 1921 A. L. Smith Lichens iv. 157 At the base of the apothecium there is a weft of light- or dark-coloured hyphae called the hypothecium, which is continued up and around the sides as the parathecium merging into the ‘proper margin’. 1953 Ann. Missouri Bot. Garden 40 296 Laurera... Pseudostromata containing two or more perithecia with carbonaceous parathecia. 1979 Bull. Torrey Bot. Club 106 262/2 Parathecium hyaline to very pale brown. This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022). < n.1921
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