54 
NEW AND RARE BRITISH FUNGI. 
attenuated below towards the pedicels ; apex much thickened, 
rounded, truncate, or more or less conical. Central constriction 
slight or absent, chestnut brown, 30-35 x 15-26 mk. 
I. On Ranunculus repens and bulbosus. 
II. and III. On Phragmites communis. 
This Puccinia has hitherto been regarded as a variety of 
P. graminis occurring upon reeds. The presence of paraphyses with 
the uredospores does not accord with these species ; germinating 
teleutospores of P. magnusiana produced no iEcidium upon 
Berberis vulgaris nor upon any of the Kumices. 
258. Puccinia poaxum, Nielson. 
I. /Ecid io spores=.ALcidium tussilaginis. 
II. Uredospores. Sori rounded, elliptical, or linear, scattered or 
irregularly grouped, orange yellow or foxey-red. Spores spherical 
or elliptical, with a verrucose uneven epispore, orange yellow, 20 to 
30 mk. in diameter. 
III. Sori very variable in form and size scattered or in circular 
clusters ; covered by the epidermis. Spores on very short, generally 
brown, pedicels, very variously formed ; apex much thickened, 
often attenuated, dark brown, as much as 50 mk. long by 24 mk. 
wide. 
I. On Tussilago farfara. 
II. and III. On Poa annua , pratensis and trivialis. Exceedingly 
common in all parts of Great Britain. 
The teleutospore sori are often in circles or parts of circles. 
259. Puccinia Schroetxiana, Plow and Magnus. 
I. sEcidiospores=j4Zcidium Jacobcea, Grev. iEcidia in circular 
clusters, mostly upon the under side of the radical leaves ; edges 
reflexed, torn, whitish. Spores rounded, polygonal, yellow, finely 
echinulate, 15 to 20 mk. in diameter. Spermogonia on yellow 
spots, corresponding to the secidial groups, but on the upper sur- 
face of the leaves. 
II. Uredospores. On yellow discoloured spots, sori elongate or 
rounded, generally hypopliyllous, some naked, spores subglobose or 
ovate or oval, yellowish brown, rough, 25 to 30 mk. by 14 to 20 
mk. 
III. Teleutospores. Sori erumpent, oblong or elongate ; large, 
prominent, almost black ; hypophyllous, surrounded by the rup- 
tured epidermis. Spores on long, firmly attached pedicels, 
slightly constricted at the centre ; upper cell subglobose, oval, or 
attenuated above ; apex much thickened, rounded, or pointed ; 
lower cell wedge-shaped, often paler than the upper ; brown, smooth, 
60 to 80 by 15 to 20 mk. 
I. On Senicio Jacobcea. II. and III. On Carex arenaria. 
North Wootton Heath. Skegness, 1883. 
