perigoniumn.

Brit.

/ˌpɛrɪˈɡəʊnɪəm/, U.S.

/ˌpɛrəˈɡoʊniəm/

Inflections: Plural perigonia.

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

Etymology: < scientific Latin perigonium (J. Hedwig Descriptio muscorum frondosorum (1788) I. Pref. sig. d 2) < peri- peri- prefix + ancient Greek γόνος offspring, seed (see gono- comb. form) + scientific Latin -ium (see -y suffix⁴). Compare perigon n.¹Scientific Latin Perigonium was introduced by Hedwig for the floral envelopes generally, and also used by him especially of mosses; it was applied by F. Ehrhart ( Beiträge zur Naturkunde (1788) III. x. 123) to the floral envelopes in phanerogams.

1. Botany.

a. The perianth (perianth n. 1b) of a flowering plant. Also: the utricle of a sedge.

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > perianth

perianthium1806

perigonium1816

perianth1828

tepal1840

perigon1847

1816 P. Keith Syst. Physiol. Bot. I. i. iii. 102 Designating the organs in question [sc. calyx and corolla] merely by the general appellation Perigynandra, or Perigonium.

1832 J. Lindley Introd. Bot. 114 Some writers, among whom are Link and de Candolle, have substituted Perigonium for Perianthium... Ehrhart, with whom the name Perigonium originated, called it double when the calyx and corolla are..distinct, and single if they are not distinguishable.

1880 A. Gray Struct. Bot. vi. §1 164 Perigonium, a later term [than perianthium], has the advantage of meaning something around the reproductive organs.

1912 New Phytologist 11 125 Spikes rather large, many flowered. Bristles of the perigonium papillose at the top.

1958 Evolution 12 178/1 Three species of this group [of Colchicum]..display in their flowers..the presence of toothed ridges on the segments of the perigonium on either side of the filament.

1991 Ann. Missouri Bot. Garden 78 497/1 These authors considered the characters of the perigonium to be essential for grouping the species [of Aristolochia].

b. A cluster of modified leaves surrounding the antheridium of a bryophyte. Cf. perianth n. 2, perichaetium n.

ΚΠ

1863 M. J. Berkeley Handbk. Brit. Mosses Gloss. 312 Perigonium, the male inflorescence.

1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. 320 The male perianth (Perigonium) [in mosses]..is of three different forms.

1939 Amer. Midland Naturalist 21 314 Perigonia gemmiform, often appearing lateral.

1972 Ann. Missouri Bot. Garden 59 389 A perichaetium will contain from one to three receptive archegonia, and a perigonium will have usually one or sometimes two ripe antheridia.

2001 Bryologist 104 104 Ramets bearing perigonia were at times connected beneath the ground surface by..rhizoids.

†2. Zoology. A sac formed by the outer parts of the gonophore of a hydroid. Obsolete.

ΚΠ

1871 G. J. Allman Monogr. Gymnoblastic Hydroids i. p. xv Perigonium.., the walls of a sporosac by which the generative elements are confined, and in which, when fully developed, three laminæ may be demonstrated.

1888 G. J. Allman in Rep. Sci. Results Voy. H.M.S. Challenger: Zool. XXIII. ii. p. xxxv The perigonium or sac formed by the more external parts of the gonophore.

This is a new entry (OED Third Edition, December 2005; most recently modified version published online March 2022).

单词	perigonium
释义	perigoniumn. Brit. /ˌpɛrɪˈɡəʊnɪəm/, U.S. /ˌpɛrəˈɡoʊniəm/ Inflections: Plural perigonia. Origin: A borrowing from Latin. Etymon: Latin perigonium. Etymology: < scientific Latin perigonium (J. Hedwig Descriptio muscorum frondosorum (1788) I. Pref. sig. d 2) < peri- peri- prefix + ancient Greek γόνος offspring, seed (see gono- comb. form) + scientific Latin -ium (see -y suffix⁴). Compare perigon n.¹Scientific Latin Perigonium was introduced by Hedwig for the floral envelopes generally, and also used by him especially of mosses; it was applied by F. Ehrhart ( Beiträge zur Naturkunde (1788) III. x. 123) to the floral envelopes in phanerogams. 1. Botany. a. The perianth (perianth n. 1b) of a flowering plant. Also: the utricle of a sedge. ΘΚΠ the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > perianth perianthium1806 perigonium1816 perianth1828 tepal1840 perigon1847 1816 P. Keith Syst. Physiol. Bot. I. i. iii. 102 Designating the organs in question [sc. calyx and corolla] merely by the general appellation Perigynandra, or Perigonium. 1832 J. Lindley Introd. Bot. 114 Some writers, among whom are Link and de Candolle, have substituted Perigonium for Perianthium... Ehrhart, with whom the name Perigonium originated, called it double when the calyx and corolla are..distinct, and single if they are not distinguishable. 1880 A. Gray Struct. Bot. vi. §1 164 Perigonium, a later term [than perianthium], has the advantage of meaning something around the reproductive organs. 1912 New Phytologist 11 125 Spikes rather large, many flowered. Bristles of the perigonium papillose at the top. 1958 Evolution 12 178/1 Three species of this group [of Colchicum]..display in their flowers..the presence of toothed ridges on the segments of the perigonium on either side of the filament. 1991 Ann. Missouri Bot. Garden 78 497/1 These authors considered the characters of the perigonium to be essential for grouping the species [of Aristolochia]. b. A cluster of modified leaves surrounding the antheridium of a bryophyte. Cf. perianth n. 2, perichaetium n. ΚΠ 1863 M. J. Berkeley Handbk. Brit. Mosses Gloss. 312 Perigonium, the male inflorescence. 1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. 320 The male perianth (Perigonium) [in mosses]..is of three different forms. 1939 Amer. Midland Naturalist 21 314 Perigonia gemmiform, often appearing lateral. 1972 Ann. Missouri Bot. Garden 59 389 A perichaetium will contain from one to three receptive archegonia, and a perigonium will have usually one or sometimes two ripe antheridia. 2001 Bryologist 104 104 Ramets bearing perigonia were at times connected beneath the ground surface by..rhizoids. †2. Zoology. A sac formed by the outer parts of the gonophore of a hydroid. Obsolete. ΚΠ 1871 G. J. Allman Monogr. Gymnoblastic Hydroids i. p. xv Perigonium.., the walls of a sporosac by which the generative elements are confined, and in which, when fully developed, three laminæ may be demonstrated. 1888 G. J. Allman in Rep. Sci. Results Voy. H.M.S. Challenger: Zool. XXIII. ii. p. xxxv The perigonium or sac formed by the more external parts of the gonophore. This is a new entry (OED Third Edition, December 2005; most recently modified version published online March 2022). < n.1816
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