. The British rust fungi (Uredinales), their biology and classification. Uredineae. ON LILIACE/E 119 interrupted and anastomosing, brown, 28—44 x 22—30 /a ; epi- spore 2—3|/i thick ; pedicels hyaline, slender, Fig. 70. U. Lilii. a, leaf of Lilium candidum, with aeeidia; b, another, with teleuto-sori, nat. size; c, cells of peridium, in section and inner face-view; d, teleutospores ; e, teleutospore seen from above ; /, secidiospore, all x 600. On Lilium candidum. Kew Gardens; also at Birmingham, 1911-3 (). yEcidia in April, May; mature teleuto- spores from June. (Fig. 70.)
. The British rust fungi (Uredinales), their biology and classification. Uredineae. ON LILIACE/E 119 interrupted and anastomosing, brown, 28—44 x 22—30 /a ; epi- spore 2—3|/i thick ; pedicels hyaline, slender, Fig. 70. U. Lilii. a, leaf of Lilium candidum, with aeeidia; b, another, with teleuto-sori, nat. size; c, cells of peridium, in section and inner face-view; d, teleutospores ; e, teleutospore seen from above ; /, secidiospore, all x 600. On Lilium candidum. Kew Gardens; also at Birmingham, 1911-3 (). yEcidia in April, May; mature teleuto- spores from June. (Fig. 70.) The part of the leaf occupied l)y the tecidia is somewhat thickened, and the cecidia 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 garden 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. Eri/throaii differs from this species in possessing a truly cup-shaped secidium with a distinctly revolute margin. But the teleutospores of the Birmingham specimens were more like those figured by Fischer under U. Erythronii than those which he figures on Fritillaria Meleagris (f. 5), though devoid of the " ; Possibly the species on Lilium is quite distinct from that on Fritillaria. The longitu- dinal striffi are so plainly marked as to be visible under a comparatively low power. As Fischer remarks, the cells of the lower part of the peridium are much thinner-walled than those in the upper 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, William Bywater. Cambridge, Univ. Press
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishercambr, bookyear1913
