. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. 224 PUCCINIA Distribution: Central and Northern Europe3 Siberia, North Aliu'iica. M4. Puccinia Oxyriae Fckl. Puccinia 'ai' Fckl. Symb. Nacht. iii. 14. Cooke, Grevillea, xi. 1">. Plowr. Ured. |i. L94. Sacc. Syll. vii. 642. Sydow, Monogr. i. 567. Fischer, [Jred. Schweiz, p. 135, f. 102. ('ri'dnspures. Sori araphigenous, generally hypophyllous, on minute purplish spots, scattered or aggregated, rounded, sometimes confluent, surrounded by the cleft epidermis, cinna- mon ; spores glob
. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. 224 PUCCINIA Distribution: Central and Northern Europe3 Siberia, North Aliu'iica. M4. Puccinia Oxyriae Fckl. Puccinia 'ai' Fckl. Symb. Nacht. iii. 14. Cooke, Grevillea, xi. 1">. Plowr. Ured. |i. L94. Sacc. Syll. vii. 642. Sydow, Monogr. i. 567. Fischer, [Jred. Schweiz, p. 135, f. 102. ('ri'dnspures. Sori araphigenous, generally hypophyllous, on minute purplish spots, scattered or aggregated, rounded, sometimes confluent, surrounded by the cleft epidermis, cinna- mon ; spores globose to ovate, delicately echinulate, yellow- brown, 23—30 x 20—26 Fig. 172. P. Oxyriae. Teleutospores (from a Swiss specimen). Teleutospores. Sori on the leaves similar, but also on the petioles and peduncles and then elongated, pulverulent, black- brown; spores oblong to obovate, rounded and slightly thick- ened or hooded above, constricted, generally rounded below, marked in the upper part with little unevennesses, almost as if corroded, brown, 30—46x15—25 /x: pedicels nearly hyaline, deciduous, rather long. On Oxyria digyna (reniformis). Rare; Skye (Buchanan White), Braemar (Prof. Trail). August. (Fig. 172.) The teleutospores were described by the older authors as smooth ; but, as Lagerheim first pointed out, they are really provided with faintly perceptible markings, especially visible towards the summit. Distribution : Switzerland, Norway, Iceland, 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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