. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. ON 285 spores subglobose or ellipsoid, verruculose, yellowish, 19—32 x 16—24^.] Uredospores. Sori epiphyllous, very rarely hypophyllous, on minute yellow spots, elliptical or oblong, minute, pale rust- coloured; spores globose to ovate, echinulate, yellowish, 19—30 x 1!)—2(3 ft, with numerous germ-pores, and mixed with nume- rous capitate paraphyses which are 10—14 fi broad and as much as 80 fx Fig. 215. P. Arrhenatheri. a, teleutosporea on Arrhenatherum, from Hampton- in-Arden
. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. ON 285 spores subglobose or ellipsoid, verruculose, yellowish, 19—32 x 16—24^.] Uredospores. Sori epiphyllous, very rarely hypophyllous, on minute yellow spots, elliptical or oblong, minute, pale rust- coloured; spores globose to ovate, echinulate, yellowish, 19—30 x 1!)—2(3 ft, with numerous germ-pores, and mixed with nume- rous capitate paraphyses which are 10—14 fi broad and as much as 80 fx Fig. 215. P. Arrhenatheri. a, teleutosporea on Arrhenatherum, from Hampton- in-Arden ; b, another, and c, two abnormal ones, from Lichfield ; d, a paraphysis and uredospore from the latter. Teleatospores. Sori hypophyllous, scattered, minute form or shortly linear, covered by the epidermis, black; spores ellipsoid-oblong or oblong- clavate, rounded, truncate or rarely gently attenuated a- bove where they are thickened (5—lOyu.) and darker, hardly or not at all constricted, gen- erally attenuated downwards, smooth, pale-brown, 30—45 x 18—24/x, mixed with brown- ish paraphyses; pedicels short, brownish. puncti-. 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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Keywords: ., bookcentury1900, bookdecade1910, bookpublishercambr, bookyear1913
