122 British Urediit'^cE and Ustilaoijiecs. 



Uromyces phaseoli. (Pers.) 

 yEddiospores — On circular spots about 2 mm. across. Pseudoperidia 



cup shaped, crowded, with everted, whitish, deeply toothed 



edges. Spores polygonal, finely verrucose, colourless, 20-25 x 



1 6- 1 8/A. 

 Uirdospores — Sori scattered, pale cinnamon brown. Spores 



rounded or shortly elliptical, pale brown, echinulate, 25-34 x 



15-1V 

 Teleutospores — Sori black-brown, soon naked. Spores spherical 



or shortly elliptical, apex thickened, with a wide germ-pore 



and often a colourless papilla, smooth, dark brown, 26-35 ^ 



22-36/^, Pedicels short, deciduous. 



Sy?i0nytHs. 



Uromyces phaseoli (Pers.). Winter in Rabh., " Krypt. Flor.," 

 vol. i. p. 157. 



Uredo appendiculata, var. phaseoli^ Pers. Observat. in " Usteri 

 ann. d. Botan.," vol. xv. p. 17. 



C/roj/iyces p/wseo/ornm, De Bary. Cooke, " Grevillea," vol. vii. 



P- 135- 



On Phaseolns vulgaris. 

 May and October. 



BiOLOGV. — The spots on which the recidia occur are at first pale, 

 becoming yellowish. 



I have never seen British specimens of this, which is inserted 

 on the faith of Dr. Cooke's paper upon Uromyces in " Grevillea.'' 



Uromyces limonii. (D. C.) 



^cidiospores — On purplish spots. Pseudoperidia hypophyllous, 

 white, cylindrical, with much-torn white edges. Spores sub- 

 globose or ovate, yellow, minutely verrucose, 16-25 x 15-20/x. 



Uredospores — Sori brown, roundish, bullate, then naked, scattered. 

 Spores globose or ovate, pale brown, finely verrucose, 30-35 x 



25-30/^- 

 Teleutospores — Sori small, rounded, black. Spores ovate or sub- 



pyriform, darker and thickened at the apex, often attenuated 



below, smooth, rich brown, 25-50 X 15-25^. Pedicels very 



long. 



