UREDO L i n i .
Flax-leaf Uredo.
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CL1S8 AND O r d e » CRYPTOGAMIA FUNGI, £ sW _ N a t . O aD . GASTROMYCl, Grev.
FPIPHYTÆ, Link.—FUNGI, Jitss. De Cand. &c.
GEN ERIC CHARACTER.
Peridium verum 0. Sporidia plerumque globosa, non septata, nuda, libera.
Plantulæ “ sub epidermide foliarum herbacearum ortæ et epidermide rupta,
Jacilè dispersed’ (D e Ca n d .). Epidermis peridio similiima.
No true peridium (membrane enclosing the sporidia). Sporidia mostly globose,
unilocular, naked, free, bursting through the epidermis of the leaves
of herbaceous plants, and easily dispersed ; epidermis bearing a strong
resemblance to a true peridium.
S PE C IF IC c h a r a c t e r .
U redo L in i; sparsa, ovata, Jlavo-aurantiaca, convexa, sporidiis numerous suh-
sphæricis.
U. scattered, ovate, orange-yellow, convex ; sporidia numerous, subsphseri-
cal.
U r e d o Lini, De Cand. Fl. Franç. v. 2 . p. 234.—Fjusd. Syn. p. 49.— Greu. Fl.
Fdin. ined.
U r e d o miniata, var. /3, Pers. Syn. Fung. p. 2 16 .
U r e d o polymorpha, var. >i, Strauss, in Annal. Soc. Wetterav. 2. p. 88.
Hab. On both surfaces of the leaves of Linum catharticum; not unfrequent
in Summer.
Bright yellow-orange, scattered, on the leaves and even stem, convex, of
various forms, chiefly roundish or ovate, pulverulent, sporidia numerous,
subglobose, containing dark-coloured granules, according to the observations
of D e Ca n d o l l e .
A very abundant Uredo in dry heatby pastures, and offering
notbing peculiar for observation.
Fig. 1 . Plants, nat. size. Fig. 2t & 3. Ditto, more or less
Sporules.
I Fig. 4.