uˈredospore Bot.
Also ureˈdiniospore, uˈrediospore.
[f. uredo + spore. cf. uredinium.]
One or other of the peculiar summer spores developed during the uredo stage in rust fungi.
| 1875 Bennett & Dyer tr. Sachs's Bot. 248 These uredo⁓spores are dispersed after the rupture of the epidermis. 1882 Bentley Man. Bot. (ed. 4) 372 From which vertical branches shoot upwards bearing at their extremities oval granular spores, the uredospores. 1905 Urediniospore [see uredinium]. 1937 Nature 8 May 801/1 The urediospores germinate normally and readily infect wheat seedlings. 1970 J. Webster Introd. Fungi ii. iv. 368 The urediospores [ed. 2 (1980): urediniospores] are detached by wind and blown to fresh wheat leaves upon which they germinate. 1978 Bio Systems X. 32/1 The first method..has been seen only in two related species of Uromyces, although it is the standard means of urediniospore separation as far back as the fern rusts. |
Hence uˌredoˈsporic a., ‘of or pertaining to a uredospore’ (Cent. Dict., 1891); uˌredospoˈriferous a., bearing uredospores; uˌredoˈsporous a., characterized by uredospores.
| 1895 M. C. Cooke Study Fungi xx. 242 The uredosporiferous sori are variously coloured. Ibid. xx. 248 Species of uredosporous Uredines. |