uredium Bot.
(jʊˈriːdɪəm)
Pl. uredia.
[mod.L., f. uredo.]
= uredinium. Hence uˈredial a.
| 1937 Nature 8 May 800/2 Forty-four days after the inoculation was made, we observed small uredia on the upper surface of several of the pustules. 1937 Uredial [see æcium]. 1949 B. B. Mundkur Fungi & Plant Dis. vii. 155 Towards the end of the growing season the formation of uredia ceases and teliospores begin to appear. 1967 Trans. Brit. Mycol. Soc. L. 192 Aecia usually result from a fertilization process..but they may also originate from aeciospores and, thus, can be a repeating spore form (uredial aecia as in Cronartium and Coleosporium). 1970 J. Webster Introd. Fungi ii. iv. 369 A single uredium may contain from 50,000 to 400,000 spores. |