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370 POLYPORACEAÍ Merulius
yellowish-white; marg. very broad, barren, white, Hym.
brown when dry.
Bark, pine, alder. Nov.-Jan. 3® in. Pores sometimes not developed.
1675. M. porinoides Fr. (from the poriform folds of the hymenium)
abc.
Po. large, round, dissepiments feeble, pale dull yellowish or
brownish-ochre; marg. broad, barren, white to yellowish-white.
Dead wood, chips, bark, fir, on the ground ; rare. Sept. 4® in.
1676. M. rufus Pers. (from the reddish hymenium; rufits, reddish)
abc. Waxy-soft.
Po. regular, round, medium to small, red-sienna, or light to dark
vinous-brown; marg. obsolete, or narrow and irregular, barren,
colour as Po.
Often effused. Dead wood, oak, willow ; uncommon. May-Feb. 3^ in.
Vinous-blackish when dry. Greatly resembling a resupinate Polyporus.
1677. M. serpens Tode (from its wavy, creeping habit; serpo, to
creep) abc. Inseparable, thin.
Po. wrinkled to round, angular, entire, dissepiments sometimes
feeble, pale to ochreous-salmon or red; marg. broad, barren,
white. Hym. dark vinous- or rufous-brown when dry.
Fir, lime, ash, cedar, cones; rare. Oct.-Mar. 6® in.
1678. M. pallens Berk, (from its pale colour; palleo, to be pale) abc.
Inseparable, somewhat gelatinous.
Po. round, but variable, minute to somewhat large, feebly
developed, pale reddish- or brownish-salmon, sometimes
orange-brown ; marg. indeterminate, barren. Hym. pale purple-
umber to deep vinous-brown when dry.
Fir, oak ; rare. June-Dee. 3§ in.
1679. M. Carmiehselianus Berk, (after Capt. Dugald Carmichael) a c.
Confluent, very thin.
Po. large to small, often hexagonal, very shallow, with feeble
dissepiments, white; marg. narrow, obsoletely punctate, edge
finely laciniate.
Bark. 3® in. Brown when dry.
b. Coniophorce.
1680. M. laerymans Schum. (from the watery drops on the fully
developed hymenium ; lachryma, a tear) abc.
Spongy-fleshy, arachnoid-velvety below, sometimes reflexed with
a small extended rugose whitish more or less imperfect P.
Po. large, round to gyroso-toothed, sienna-orange, yellowish
towards the barren tomentose white or salmon marg. Flesh
grey-whitish-flesh colour or vinous-brown. Hym. dark brown,
sometimes almost black when dry.
Odour very strong, fungoid, penetrating. Dressed wood in buildings, spreading
over brickwork, plaster, mortar, carpets, etc. Does not grow out
of houses in this country. Jan.-Dec. I ft. 5® in. The fungus of “ dry-
rot.” The flesh gives a red stain to paper like 1517. Ynx. pulverulentus
Merulius POLYPORACEzE 371
Fr a membranous form, with a somewhat more feeble development of
ports than in type. Must not be confused with 1884, a plant which has
no pores.
1681. M. squalidus Fr. (from its squalid appearance) abc. Smooth,
with extensive barren places.
Po large to small, somewhat sinuous, hyaline flesh-colour;
marg. broad, barren, paler, fibrillose at edge. Hym. dull,
dark vinous-umber or purple slate-black when dry.
Plornbeam, posts, dressed wood. Feb. 3® in.
1681a M. Guillemotii Boud. (after M. Guillemot) a.
P dimidiate, imbricate, smooth, white, becoming greyish with age.
Po. gyrose, subgelatinous, fulvous to brassy-orange, slightly
olive, pulverulent with spores. Flesh white to pale lavender.
On posts’, palings, willow. June-Sept, 4 i X 2j in. ; projection 2j in.
LXIX. POROTHELIUM Fr.
(From the perforate tubercles, spines or teat-like teeth;
Gr. poros, a pore, thele, a teat.)
Subiculum more or less membranous, bearing obtuse, or elongate,
distinct papilte, which are at first closed, then open in the form of
pores or tubes. On dead branches, etc. (Fig. 84.)
1'
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Fig:. iA.—z , ParotheUum f im b r ia tu m Fi-„ one-h.ilf n atural size, b , pores c, section when
grown h o rizo n tally ; d , d itto when grown vertically, X 10. k, P . F r iesu Mont., papilla:
from a damp position ; f , d itto from a dry position ; G, section. X lo.