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ERINEUM TORTUOSUM.
Entangled Birch-leaf Erineiim.
C l a s s a n d O r d e r CRYPTOGAMIA FUNGI, £ m n . _ N A T . O r d . GASTROMYCI,
Gtct—MUCEDINES, Link.
G EN ERIC CHARACTER.
Peridh jhccifwmia, subdiaphana, varia, snbsimplicia aggregaio-cmpitosa, fo-
Im vims parasitica. Sponda; minutissima;, sa;pissime subnulla;.
Peridia flocciform, subdiaphanous, various, subsimple, aggregato-cmspitose,
pajasitic on bving leaves. Sporules most minute, very frequently invi-
S PE C IF IC CHARACTER.
E rineum to rtu o sum ; amphigenum, macula;forme, irreguläre, subimmersum,
albo-ferrugineum; peridiis linearibus, cylindricis, tortuosis, apicibus rotun-
E. on both sides of the leaf, in irregular spots, subimmersed, white, at length
ferruginous; peridia linear, cylindrical, tortuose, rounded at the apex.
E rinedm tortuosum. Grew, in Edinb. Phil. Journ. v. 6. p. 74. t. 2. f. 2.—
Ejusd. FI. Edin. ined.—Kunze, Mycol. Hefte, 2. p . 158.
H ab On Betula alba. Ravelrig Toll, and Bilston Burn, both near Edinburgh
; m spring and summer.
Tufts scattered, rarely confluent, somewhat immersed, white, at length unequally
ferruginous, preferring the inferior surface o f the leaf, which is
frequently more or less distorted. Peridia long, cylindrical, slender, very
flexuose and entangled with each other, rounded, but rarely incrassated
at their apex, colourless under the microscope.
A rare plant, as it is not common in this country, and does
not appear to have been found on the Continent, from the excellent
Monograph recently published by Professor K u n z e in
the 2d part of Mykologische H e fte. It is the fourth species
which has been found on the leaves of the Common Birch.
In the above quoted work, which I have just received from
the learned author in time to avail myself of its contents, I
perceive that we differ considerably in the physiological view
VOL. II.