124 
MILDEWS, RUSTS AND SMUTS 
Aecidia. On the under surface of the leaf, on the leaf¬ 
stalks and on the stem ; in rather large clusters.on yellowish 
spots on the leaves, in long groups on the leafstalks and stem, 
’ cup-shaped, yellowish, edge not much torn ; spores sub- 
globose, elliptical or ovate, minutely warted, yellowish, 
i8 — 32 X 18 — 24 pL. 
Teleutospores. Sori scattered or in small groups, minute, 
■' powdery,, dusky-broWn, on minute, yellowish spots on the 
under siirface" of the leaf ; spores elliptical, ovafe orbblohg, 
ends younded, tip not'thickened, very slightly cohstricfed 
at the. Septum, rather coarsely and distantly wartbd, pr the 
warts forming more or less of a ridged network, brown,'’35— 
50 X 20—30 pL, p'edicel colourless, thin, long, deciduous. 
Syn. Puccinia smyrnii, Corda.; Plowr., Ured., .’p. 199. 
Trichohasis petroseliniy Berk., wds. S'iyiyrnii, Cooke. 
{■if - On Smyrnium olusatrum. Britain, France, Italy, Gneece, 
Turkey, Crete and Cyprus, Asia Minor, and Algeria-./ 
The alien host-plant is local in its occurrence in this 
country, hence the fungus is comparatively rare. I have 
collected it in abundance years ago on the slope just 
outside the entrance to the castle at -Scarborough, and Mr. 
,5 Roe informs me that it is yet to be, found there. 
<• 1' . j -1 . r ■ 
OENOTHERACEAE 
CIRCAEA 
Puccinia circaeae, Pers.; Plowr., Ur'ed., p. 213.'.* 
Teleuto spores. Sori minute, wart-like, yellowish, then 
brownish, finally blackish, scattered or in circles, or forming 
crust-like patches on the stem, on pale patches on the 
‘under surface of the leaves; spores generally spindle- 
shaped, tip much thickened, rounded or conical,' very 
slightly'constricted at the septum, narrowed into the pedicel, 
srno'Pt'h, yellowish or pale brown, 25—^45 x 10—15 pt,. pedicel 
colourless, up.to as long as the spore. 
•On leaves, leafstalks and stems of Circaea lutetiana. 
Britain, Europe, India, N. America. i - 
Two forms of sori are produced. On the surface of the 
leaf the sori are in scattered and in small groups, or arranged 
in circles ; the spores have a clear brown wall, and germinate 
at once. Following the veins, or on the stem, the sori 
often consist of crusts of crowded' sori, darkc'bjrown in 
colour : the spores have a dark brown wall, and. germinate 
the following spring. 
