ERINEUM poPDLiNüM.
Poplar Erineum.
S P E C IF IC CHARACTER.
E rineum populinum; amphigenum, maculiforme, prqfunde immersum, laxum,
primo pallidum, dein rufescens, demum sordide spadiceum ; peridiis opacis,
crassis, irregularibus, apice subramosis, erosis.
E. on both sides o f the leaf, spot-like, deeply sunk, lax, at first pale, then
reddish, at length dark p urplish-brown; peridia opake, thick, irregular,
somewhat divided and erose at the summit.
E rineum populinum, Pers. Obs. Mycol. 1. p. 100.—Syn. Fung. p. 700.—
Mycol. Furop. 1. p. 7.—De Cand. Fl. Fran;, v. 6. p. 14.—Syn. Fl. Gall.
p . 15 Alb. et Schwein. p. 371-—Schultz, Fl. Starg. p. 505. Jide Kunze.—
Fries, Obs. Mycol. 1. p. 223.—Funck, Crypt. Gew. 7- No. l65.—Deutschl.
Schwaem. 1. No. 99-—Moug. et Nestl. St. Fxsicc. 1. No. 100.—Grev. in
Edinb. Phil. lourn. v. 6. p. 78. t. 3. f. 1 1 .—Puri. Midi. Fl. v. 3. p. 315—
Kunze, Mycol. Heft. 2. p. 148.
E rineum aureum, Schum. Fl. Sal. 2. p. 446.
H ubigo p o p u lin a . Mart. Fl. Crypt. Frl. p. 348.
H ab. On both sides of the leaves o f Poplars (Populi), especially Populus
tremula. Summer and autumn, not unfrequent. Darnway woods, and
other places in Scotland. I had the pleasure of receiving English specimens
in 1825 from Mr Baxter of the Botanic Garden, Oxford.
Plant forming distinct spot-like groups, deeply immersed in hollows of the
leaf, o f a deep purplish-brown colour when mature. Peridia short,
thick, somewhat opake, dividing at the top into a number of little projections,
which give them an erose somewhat capitate appearance.
A species distinct in its very dark colour, deeply immersed
groups, and remarkably irregular peridia.
Fig. 2, a, F, populinum, natural size, b, Peridia ; magnified.