. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON CYPEEACEJ!: 249 Spermogones. In little clusters, honey-coloured. ^cidiospores, ^cidia hypophyllous or on the more or less swollen petioles and stems, clustered in round elongated or irregular groups, cup-shaped, with torn white revolute margin; spores delicately verruculose, pallid-orange, 15—25 /x. Uredospores. Sori hypophyllous, on yellowish spots, scat- tered or in little groups, very minute, roundish or oblong, soon naked, pulverulent, yellowish-brown; spores more or less globose, delicately echinulate,
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON CYPEEACEJ!: 249 Spermogones. In little clusters, honey-coloured. ^cidiospores, ^cidia hypophyllous or on the more or less swollen petioles and stems, clustered in round elongated or irregular groups, cup-shaped, with torn white revolute margin; spores delicately verruculose, pallid-orange, 15—25 /x. Uredospores. Sori hypophyllous, on yellowish spots, scat- tered or in little groups, very minute, roundish or oblong, soon naked, pulverulent, yellowish-brown; spores more or less globose, delicately echinulate, brownish, 20—26 Pig. 192. P. paludosa. Telentospores on C vulgaris, Norfolk. Teleutospores. Sori hypophyllous, minute, scattered or arranged in long lines, pulvinate, quite black; spores clavate, rounded above and strongly thickened (up to 11 /x), constricted, tapering below, smooth, brown (upper cell very dark), 45—60 X 16—22 ^t; pedicels brownish, persistent, rather long. .^Ecidia on Pedicularis palustris, June, July; uredo- and teleutospores on Gar ex fulva, G. panicea{l), G. stricta, G. vulgaris (^Goodenovii), from July onwards. As usual on Garex, the teleutospores can be found throughout the winter. Rare; Norfolk, Orkney. (Fig. 192.) Distribution: Central and Northern Europe. 116. Fuccinia uliginosa Juel. JUddimn Parnassiae Gravis, iu Bot. Gall. ii. 904. Cooke, Micr. Fung. p. 198 ; Grevillea, i. 8 and ii. 161. Naturalist, Oct. 1907, p. 321. Plowr. Ured. p. 129. Irish. 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), 1848-1938. Cambridge, University Press
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