MILDEWS, RUSTS AND SMUTS -121 
the septum, wall netted, brown, 26—37 X 18—27 p, pbdicel 
short, colourless, deciduous. ' 
Syn. Uredo aecidiiformis, 
Trichobasis herdclei, 
Puccinia pimpinellae, Strauss.; Plowr., Ured., p. 
155 (in part)V' / ' , ^ 
Puccinia hullata, ^chxoc^i.', Plowr., Ured., p.‘ i83 
(in part)., 
Differs from Puccinia pimpinellae in the uredo^ores 
having three or four ’gerni-pbfes; and ifi^The *-yery. imper¬ 
fectly developed wall of the aecidium. . i Va:- '• 
On leaves of Heracleum ' sphondylium, Britainand 
Europe generally. . •.<> • 
HYDROCOTYLES, - 7 \ 
Pucciuia hydrocotyles, Cooke; Plowr., p. 195, 
Aecidia. Cup-shaped, edge deeply cut, recurved, yellow¬ 
ish, often equally distributed over the under surface of the 
leaf, rarely solitary ; spores angularly globose, punctate, 
tinged yellow, 19—26 p diam. 
Uredospores. Sori minute, for a long time covered by 
the epidermis, then naked, powdery, cinnamon, on both 
sides of the leaf, scattered or here and there in groups, 
often in a ring surrounding a central sorus ; sppres sub- 
globose or elliptical, echinulate, brownish, 24—34 X 20— 
27 P* 
Teleutospores. Sori similar to those of the uredospores, 
blackish-brown ; spores elliptical or elliptic-oblong, tip not 
at all, or only slightly thickened, slightly constricted at the 
septum, smooth or very minutely warted, brown,'30-^44 x 
18—28 p, pedicel slender. ' " 
Syn. Trichobasis hydrocotyles, Cooke. ‘ 
On Hydrocotyle vulgaris. Britain, Itahq France, Holland, 
N. and S. America, Natal. ' ' 
PETROSELINUM ^ 
' Puccinia petroselini, Lin dr. ■/-'uh 
Uredospores. Sori very minute, scattered, or 'cr'otvffed 
into large patches, powdery, cinnamon, generally on the un¬ 
der surface of the leaf ; spores subglobose or ellipsoid, 
echinulate all over, or sometimes'almost smooth, tip thick¬ 
ened, yellowish or yellow-brown, 20—30^ X 20—^25 F.-T 
''\Teleutospores.' Sori like" those of the uredospores^'dark 
brown, often elongated'arid' crowded'dri the . leafstalks ; 
spores elliptical or ovate-elliptical, tip rounded,'not thihk- 
