. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 298 PHRAGMIDIUM Phragmidium Rubi-Idaei Karst. Piiccinia Rubi-Idaei DC. Flor. fr. vi. 54. Lecythea gyrosa Berk. ; Cooke, Micr. Fung. p. 222, pi. 8, f. 162—4. Phragmidium gracile Cooke, Handb. p. 491; Mior. Fung. p. 201, pi. 3, f. 42, 43; Grevillea, iii. 171, pi. 45, f. 9. P. Rubi-Idaei Karst. Myc. Fenn. iv. 52. Plowr. Ured. p. 226. Fischer, Ured. Sohweiz, p. 420, f. 291. Sacc. Syll. vii. 748. Sydow, Monogr. iii. 146. Spermogones. Epiphyllous, in little groups, Pig. 226. Ph. Rubi-Idaei. a, part of lea
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 298 PHRAGMIDIUM Phragmidium Rubi-Idaei Karst. Piiccinia Rubi-Idaei DC. Flor. fr. vi. 54. Lecythea gyrosa Berk. ; Cooke, Micr. Fung. p. 222, pi. 8, f. 162—4. Phragmidium gracile Cooke, Handb. p. 491; Mior. Fung. p. 201, pi. 3, f. 42, 43; Grevillea, iii. 171, pi. 45, f. 9. P. Rubi-Idaei Karst. Myc. Fenn. iv. 52. Plowr. Ured. p. 226. Fischer, Ured. Sohweiz, p. 420, f. 291. Sacc. Syll. vii. 748. Sydow, Monogr. iii. 146. Spermogones. Epiphyllous, in little groups, Pig. 226. Ph. Rubi-Idaei. a, part of leaf of Raspberry, showing the circular groups of Cffiomata, nat. size; b, a single group, magnified, showing the spermogones in the centre, surrounded by a pulvinate ring of oseomata, still partly covered by the epidermis; c, secidiospore and d, paraphysis, X 600 ; e, teleutospore x 300 ; /, teleutospore after boiling in lactic acid ; g, single cell of same, showing the three coats, (1) hyaline and gelatinous, (2) dark and rigid, (3) the thin endospore; h, one of the middle coats, detached by pressure, showing the three bordered germ-pores. ^cidiospores. Cseomata epiphyllous, small, round, yellow, usually forming a circle round a group of spermogones, sur- rounded by a dense border of hyaline, clavate, inward-curved,. 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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