. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON 119 interrupted and anastomosing, brown, 28—44 x 22—30 ^; epi- spore 2—3} yu, thick ; pedicels hyaline, slender, Fig. 70. U. Lilii. a, leaf of Liliuin candiduvi, with recidia ; b, another, witli teleuto-sori, nat. size; c, cells of peridium, iu section and inner face-view; d, teleutospores ; e, teleutospore seen from above ; /, ^cidiospore, all x 600. On Liliuin candidum. Kew Gardens; also at Birmingham, 1911-3 (). /Ecidia in Aprd, May; mature teleuto- spores from June. (Fig. 70
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON 119 interrupted and anastomosing, brown, 28—44 x 22—30 ^; epi- spore 2—3} yu, thick ; pedicels hyaline, slender, Fig. 70. U. Lilii. a, leaf of Liliuin candiduvi, with recidia ; b, another, witli teleuto-sori, nat. size; c, cells of peridium, iu section and inner face-view; d, teleutospores ; e, teleutospore seen from above ; /, ^cidiospore, all x 600. On Liliuin candidum. Kew Gardens; also at Birmingham, 1911-3 (). /Ecidia in Aprd, May; mature teleuto- spores from June. (Fig. 70.) The part of the leaf occupied by the recidia is somewhat thickened, and the tecidia scarcely protrude above the epidermis. The peridia are slow in opening. The streaked teleutospores are very distinctive. The lilies on which the parasite appeared at Birmingham had been in the gai'den for some years, but it was not noticed till 1911. Fischer records it on Fritillaria Meleagris, and Sydow and Arthur on other species of the two genera. The true U. Eriithrmdi differs from this species in a truly cujj-sliaped fecidiurn with a distinctly revolute margin. But the teleutospores of the Birmingham specimens were more like those figured by Fischer under U, Erythronii tban those which he figures on Fritillaria Meleagris (f. .5), though devoid of the " ; Possibly the species on Liliurn is quite distinct from that on Fritillaria. The longitu- dinal strise are so plainly marked as to be visible under a comparatively low power. As Fischer remarks, the cells of the lower part of the peifdium are much thinner-walled than in the ujjper part. Distribution : Central Europe, North Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Grove, W. B. (William Bywater), 1848-19
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