MILDEWS, RUSTS AND SMUTS 
177 
becoming powdery ; spores subglobose, minutely warted, 
20—30 [JL; paraphyses club-shaped, with yellow contents. 
Teleutospores. Sori black, convex, often crowding into 
each other ; spores very long, cylindrical, many-septate 
(12—25), consisting of a single row of superposed cells, 
constricted at the septa, dark brown, smooth, except at 
the tip of the chain, where the epispore is warted, 250—350 
X 18—25 p, pedicel short, persistent. 
Syn. Phragmidium carbonarium, Winter. 
Lecythea poterii, Lev. 
Uredo miniata, Pers. 
On living leaves of Sanguisorha officinalis. 
Xenodochus curtus, Cooke. ; Plowr., Ured., p. 228. 
Teleuto spores. Sori minute, scattered, blackish ; spores 
short, blunt, broad, 4—8-septate. 
On leaves of Valeriana officinalis ? 
This is a doubtful species. There is no specimen in 
Cooke’s herbarium at Kew, and it has not been observed 
by any one else. 
CALYPTOSPORA, Kuhn, 
Aecidia. Spores in chains, permanently enclosed in a 
peridium. 
Teleuto spores. Usually longitudinally 3-septate, forming 
brown spore-beds, germinating by the protrusion of a 
promycelium bearing secondary spores. 
Syn. Pucciniastrum, Otth. 
Recognised by the aecidial spores, when in chain^, 
being connected by narrow necks, or intermediate sterile 
cells. The teleutospores are divided into component 
cells, standing side by side, by vertical septa. These 
component cells often separate at the septa, so that when 
old, the component cells might be mistaken for i-celled 
teleutospores. 
Calyptospora goeppertiana, J. Kuhn. 
Aecidia. Cylindrical, whitish, becoming more or less 
torn into shreds towards the tip, arranged in two rows on 
the under surface of the leaves ; spores produced in chains, 
orange-coloured, globose, warted, connected by inter¬ 
mediate narrow sterile cells, i6-—22 p. 
Teleutospores. Cuboid or sometimes subglobose, gener¬ 
ally vertically 3-septate, smooth, brown, up to 30 p long, 
forming long, swollen patches on living stems, whitish, then 
pinkish, finally brownish-black. 
Syn. Pucciniastrum goeppertianum, Klebahn. 
N 
