erineumn.
/əˈrɪnɪəm/ Botany.
A pathological growth of the epidermis of plants caused by mites of the family Eriophyidæ.Formerly supposed to be caused by a fungus to which Erineum was given as the generic name.
ΚΠ
1889 Cent. Dict. 1994/2 The erinea were formerly considered to constitute a genus of fungi.
1901 H. M. Ward Dis. in Plants xxiii. 214 In true galls the hypertrophy may consist merely in the enlargement of cells already present..e.g...the hairy outgrowths of the epidermis known as Erineum.
1916 H. S. Pratt Man. Invertebr. Animals 438 A fuzzy spot or erineum is a dense mass of twisted hairs, among which the mites live.
1937 F. T. Heald Introd. Plant Pathol. ii. 16 An abnormal development of hairs or trichomes from the surfaces of leaves giving feltlike patches, first believed to be of fungous origin and named erineum, but now known to be caused by parasitic mites and designated erinose.
1969 N. W. Hussey et al. Pests of Protected Cultivation vi. 223 Aceria lycopersici (Wolffenstein), known as the tomato erineum mite, causes white and densely hairy patches on the stems and petioles.
Derivatives
eˈrineal adj.
ΚΠ
1964 M. S. Mani Ecol. Plant Galls iii. 50 Erineal galls with papillate hairs are not uncommon.
This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2018).
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