366 PUCCINIASTRUM 
Teleutospores. Hypophyllous, in little subepidermal groups, 
roundish or flattened at the sides, divided longitudinally into 
about 2—4 cells, 17—24 x 21—28; epispore of uniform 
thickness (about 2 4), clear-yellowish, smooth. 
On Circaea intermedia, C. lutetiana. Rather common in the 
uredo-stage. June—September. (Fig. 273.) 
It is prubable that this, like Pucciniastrum pustulatum, has an ecidium- 
stage on a conifer, but nothing has yet been discovered to confirm the 
suspicion. Puceinia Circaeae has sometimes been confounded with this 
species, though they have nothing in common but the host-plant. They 
may both be found on the same leaf. 
DISTRIBUTION : Central Europe. 
3. Pucciniastrum pustulatum Dietel. 
Uredo pustulata Pers. Syn. p. 219. Cooke, Handb. p. 526; Micr. 
Fung. p. 215. 
Melampsora pustulata Schrot. Pilz. Schles. p. 364. Plowr. Ured. p. 244. 
Pucciniastrum Lpilobit Otth in Mittheil. Nat. Gesell. Bern, 1861, p. 72. 
Sace. Syll. vii. 762. Fischer, Ured! Schweiz, p. 459. 
P. Abieti-Chamaenerit Kleb. Wirtswechs. Rostpilze, p. 393. 
P. pustulatum Dietel, in Engler u. Prantl, Nat. Pflanzen. i. 1**, 47. 
Arthur, N. Amer. FI. vii. 107. 
[Spermogones. Hypophyllous, abundant, subcuticular. 
Acidiospores. cidia hypophyllous, whitish, mostly in two 
rows corresponding to the two white lines, 
4mm. wide, 1 mm. high, cylindrical, with 
an evident peridium, opening by longitu- 
dinal slits; spores mostly oval, 13—22 x 
10—14 w (15—17u, Dietel); epispore finely 
verrucose, but with a thinner and smooth 
area which often forms a longitudinal strip. ] 
Uredospores. Sori hypophyllous, caus- 
ing reddish or yellowish spots on the upper 
surface, roundish, | mm. wide, scattered or 
Fig: 874 Pi) preee in little groups, often contiuent, orange, 
latum. AScidia on surrounded by the peridium and the remains 
leaf of A. pectinata, : : 
slightlyenlarged;a, Of the epidermis; spores mostly oval, orange- 
a peridium, x 10. yellow, distantly echinulate, 15—22 x 11— 
From a foreign : 
specimen. 14; paraphyses wanting. 
