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272 OUTLINE S OF B R IT IS H FUNGOLOGY.
On fallen branches. Rare. Gracedieu, Leicestershire, etc.
Sow. t. 25, belongs to Stereum spadiceum.
3. H. corrugata, B. ; effused, closely adnate, indeterminate,
cinnamon, cracked when dry.—Grev. t. 234.
On sticks, in ivoods. Very common. Varying in colour,
ferruginous, copper-coloured, etc. I t certainly ought not to
he placed in a distinct genus from the two preceding, of one of
which it is possibly only a resupinate condition.
38. AURICULARIA, Fr.
Hymenium irregularly and distantly folded, gelatinous
when wot, different in substance from the pileus.
1. A. mesenterica, Bull.; pilei resupinate, thin, reflexed,
entire, villous, zoned, and fasciate, brownish-cinereous ; hymenium
costato-plicate, brownish-violet.—Sow. t. 290 ; Fluss. ii.
t. 6.
On stems of trees, etc. Not uncommon. In dry weather
very thin, but reviving with wet.
2. A. lobata, Somm. ; pileus effuso-reflexed, variegated with
strigoso-tomentose, velvety and smooth zones, tawny, inclining
to dirty-white ; hymenium livid-tawny ; folds distant, forming
a loose network. (Plate 18, fig. 1.)
On bark of trees. Not common. Staunton, Nottinghamshire.
Very nearly allied to the last.
39. CORTICIUM, Fr.
Hymenium soft and fleshy, swollen when moist, collapsing
and becoming even when dry, often rimose.
* Circumference hjssoid, fibrillose, etc.
1. C. giganteum, Fr. ; widely effused, when moist swelling,
waxy, hyaline, white, when dry thin, but cartilaginous, free,
milk-white; circumference strigoso-radiate; hymenium even.
AU R ICU LAR IN I . 273
On pine-stems, and from thence running over twigs, etc.
Common. Sow. t. 349, is Merulius corium. Bolt. t. 166,
f. d, is probably Stereum rugosum.
2. C. laoteum, F r .; effused, membranaceous, milk-white
beneath, with the circumference loosely fibrillose; hymenium,
when perfect, waxy, darker, rimoso-partite when dry.
On trunks of trees, etc. Not uncommon. The mycelium
sometimes forms white strings, which run about like those of
Clavaria stricta, Agaricus platyphyUus, etc.
3. C. arachnoideum, B . ; effused, delicately byssoid, as is
the circumference; hymeninm white, very thin, patchy.
In woods. Not uncommon, running over lichens, etc. The
mycelium is as delicate as a spider’s web.
4. C. l8eve,iV.; effused, membranaceous, separating, villoso-
fibrillose beneath; circumference byssoid, not radiating; hymenium
even, smooth, pinkish, and livid.
On decaying wood, sticks, etc. This is the commonest of
all the species, and assumes a variety of forms. Sometimes it
remains closely attached, sometimes the margin is broadly
reflexed. The hymenium also varies in colour, being sometimes
pure white. The circumference is occasionally almost
naked.
5. C. roseum, P . ; effused, adnate, rose-coloured; circumference
fringed, whitish; hymenium pruinose, becoming pale,
at length much cracked and rugose, hardened.
On poplar. Not common.
6. C. velutinum, F r .; effused, adnate, white, slightly tinged
with pink; circumference ornamented with straight, strigose,
diverging fibres, of the same colour; hymenium soft and
fleshy, thick, even, velvety, with dense hyaline bristles.
On logs. Not uncommon. Very beautiful and distinct.
7. C. sanguineum, F r .; bright scarlet, broadly effused, of
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