. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. Fig. 51. U. Fabae. Telento- spores and uredospore on Vicia "biological" races—(1) on Faba vulgaris and Pi&um sativum, -1 on Lathyrus vernus and probably also on Pisum sativum, (3) on Vicia Cracca, Pimm sativum, and possibly also Vicia kirsuta. The secidial generation is frequent on some hosts, such as Vicia sepium and species of Lathyrus. On Faba vulgaris and Pisum sativum it is, on the contrary, very rare, being recorded by Sydow, on the Pea, only from Norway, East Indie
. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. Fig. 51. U. Fabae. Telento- spores and uredospore on Vicia "biological" races—(1) on Faba vulgaris and Pi&um sativum, -1 on Lathyrus vernus and probably also on Pisum sativum, (3) on Vicia Cracca, Pimm sativum, and possibly also Vicia kirsuta. The secidial generation is frequent on some hosts, such as Vicia sepium and species of Lathyrus. On Faba vulgaris and Pisum sativum it is, on the contrary, very rare, being recorded by Sydow, on the Pea, only from Norway, East Indies and Japan 'Once from cadi . It has been seen on the Bean in the East Indies, 1 >ut seems to be not uncommon in artificial cultures, in which Plowright produced it both on Pea and Bean from the same teleutospores (Plowr. Ured. p. 121). On the leaves of the common field Bean only the uredospores are generally to be found, even as late as mid-October, but on the stems the teleuto- spores form large black sori. On Vicia sepium the uredo-sori are often darker and covered by the epidermis for a shorter time than on the Bean, while the teleuto-sori occur in great abundance on the leaves and even on the tendrils. If all the infected haulm, etc., were burnt instead of being put on the manure heap or left to rot on the ground, the disease would become less prevalent, especially if Jordi's idea is true, that the Bust on the wild Vetches is a distinct biological race. In Ecuador, at Quito, which has a very equable climate of "perpetual spring/' U. Fabae has, according to Lagerheirn, become almost an isolated uredo. The same thing is true of it in other tropical climes. Distribution : world-wide. Fig. 52. U. Fabae. iEcidia on Tea, from Plowright's culture, in which he produced them ou both Pea and Bean from the same teleutosport Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearan
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