Download the full PDF (13Mb)

212 MICKOSCOPIC FUXGI.
Polycystis Violse, B. and Br. Violet Smut'; sori scattered,
elongated, on both surfaces of the leaves and petioles ;
spores more or less globose, consisting of several cells surrouude(l
by a common —
irregular crust. On leaves and petioles of Yioletb.
August. Common. (Plate IX. figs. 185, 1S6.)
Polycystis pompholygodes, Lev. Buttercup Smut :
sori varied in form, buHate, epidermis inflated, at first entire, then
bursting irregularly, its remains surrounding the — clusters ; spores
copious, subglobose, black, opaque or pellucid. On Ranunculus
repem and other Ranunculacea. Summer. Very common. (Plate
IX. figs. 183, 184.)
Polycystis parallela, B. and Br. Bye Smut; sori ''very
long, linear, epidermis bursting longitudinally, spores globose,
with several projecting nodules, dark brown.— On culms and
sheaths of Bye and on the leaves of Carices. (Plate IX. figs. 18?,
188.)
Tuburci:;ta, Fr.
Plant deejily seated; spores multicellular, subglobose, or conchiform.
Berk. Oail., p. 335.
Tuburcinia scabies, B. Potato Smut ; spores globose,
composed of minute cells forming together a hollow globe with
one or more lacunae, generally attacned laterally by a slender
thread, olive. On Potatoes. Common. (Plate III. fig. 54.)
Tuburcinia Trientalis, B. and Br. Trientalis Smut ;
sori two lines broad, bullate, containing a black mass of rather
irregular depressed subglobose spores, which are very opaque
and distinctly cellular. "Hyphasma white, branched, creeping,
dehcate.— On leaves of Trientalis Europeea. August and September.
Scotland. (Plate III. figs. 52, 53.)
COLEOSPORITJM, ZcV.
Spores cylindrical, septate, some separating — at the joints, some
of a different nature, persistent. Berk. Outl.^ p. 333.
Coleosporium Tussilaginis, Lev.
Coltsfoot Bust; on
the under surface, prominent, crowded, generally forming circles,
becoming very confluent; spores numerous, subovate, orangeveUow.—
On Tussilago Farfara. Summer. Common. (Plate VIII.
figs. ISO, 181.)
Coleosporium pingue, Lev. Tawny Bose Bust ; spots
obliterated, sori effuse, on the nerves and petioles of the leaves ;
spores ovoid, yellowish-brown.—On Boses, &c.