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i a base resembling small honeycomb, compressed, unequal,
incised. Often with large pores near the marg.
Stumps, dead branches, fir, larch, beech, birch, palms in nurseries. Oct.-
May. 4f in.
1755. I. deformis Fr. (from the misshapen teeth; deformis, misshapen)
a c.
Effused, crustaceous, thin, white ; circ. pubescent, somewhat
flaxy. Te. awl-shaped, growing from a minutely porous base,
thin, somewhat incised, unevenly and partially spread over the
subiculum, matrix seen between the groups of teeth.
Wood. 2^ in. Allied to the Polyporaceoe.
1756. I. earneus Fr. (from its flesh-colour; caro, flesh) abc.
Effuso-gelatinous, membranous, adnate, collapsing, reddish;
marg. barren. Te. awl-shaped, entire, united at the base.
Wood and bark, beech. Autumn. 2® in. Placed in Radulmn by Fuckel.
Must not be confounded with 1720.
LXXIV, RADULUM Fr.
(From the root-like appearance of the processes of the hymenium ;
radix, a root.)
Hymenium resupinate, tubercular. Tubercles distinct at the
base, coarse, irregular in shape, commonly elongate, obtuse, mostly
r-H f •
Fig. ¡89.—A , R a d u lum querchnwi F r., one-half natural size ; B , ditto, section,
n a tu ra l’size ; c. tubercles o f R . orbiculare F r. ; d , d itto of R . quercmum F r. ; E ,
ditto of R .fa g in e u m F r. ; enlarged. ’ ’
waxy, scattered or fasciculate. Basidia 4-spored. Growing on
wood and on and under bark. (Fig. 89.) Species 1757—1764
1757. R. pendulum Fr. (from the pendulous habit) a c.
Longitudinally effused, thick, softly coriaceous, whitish or ivory,
upper marg. shortly reflexed and rugose, lower marg. barren
Tub. elongate, somewhat lax, irregular.
Alder, birch, pine. 5 in. Must not be confounded with 1748.
1758. R. orbieulare Fr. (from its frequent orbicular shape) abc.
Orbicular, confluent ; circ. flaxy, becoming waxy-fleshy, white to
ochre-ivory ; mid. faintly vinous ; marg. white. Tub. short to
long and broad to narrow, mere granules near the barren marg.
Birch, oak, larch, cherry ; frequent. Oct.-Mar. 2® in. ; group 4I in.
Ends of tubercles usually crested.
1759. R. quereinum Fr. (from its habitat, oak, quercus) abc.
Roundish, broadly confluent, innate, crustaceous, white to ochrewhite.
Tub. round, stout, obtuse, scattered or fasciculate,
irregular in shape, floccoso-villous at apex ; marg. barren ; edge
pure white.
Oak, sometimes on old squared oak timber. Nov.-Mar. 3} in. Sometimes
confounded with 1716, 1723 and species of Irpex.
1760. R. tomentosum Fr. (from its downy appearance, especially at
the margin ; tomentum, down) abc.
Effused, innate, somewhat thick, opaque or translucent white ;
circ. swollen or erect, tomentose. Tub. short, crowded, angular,
obtuse, smooth, confluent, resembling white tomentum, smaller
at marg.
Willow, mountain-ash, pine, sawdust. Dec. 5^ in.
1761. R. deglubens B. & Br. (from its habit of peeling from the
matrix ; deglubo, to peel off) a.
Orbicular, ferruginous, somewhat diaphanous. Tub. erect, somewhat
cylindrical, irregular, scattered, interstices even, pulverulent
with white spores.
Naked wood, bark, ash. Jan. ® in. ; group 5® in. Growing in troops of
small patches.
1762. R. eorallinum B. & Br. (from its coral-like appearance) a.
Somewhat effused, very thin, pelliculose, shining white. Tub.
fasciculate, fascicles J in. or more across, surrounded by barren
sub., divided, obtuse, coralloid, white.
On partially lichen-covered branches, oak. Sept. Fascicles i in.; group 6 in
1763. R. epileueum B. & Br. (from the hymenium growing upon a
white subiculum ; Gr. epi, upon, leukos, white) a b.
Effused. Hym. waxy, edge shghtly upturned, pale, honey-colour.
Sub. forming a powdery white marg. Tub. scattered, distant,
cylindrical, short, under a lens fimbriate at apex, deciduous
exposing the sub.
Decorticated wood, Aug. 8® in.
1764. R. fagineum Fr. (from the habitat, beech,/«¿z/i) a b.
Effused, somewhat fleshy, white or pale yellowish-brown ; marg.
radiate with ivory-white myc. Tub. enlongate, round, varied,
entire, sometimes crested, white to sienna-white.
Chiefly on bark, rarely underneath, sometimes on birch. Nov.-Mar. 5 f « '
(Radubmi aterrimmn Fr. is not a Basidiomycete but apparently one of the
Dematiece. Under the microscope the appearance is that of conceptacles
of Rhizoctonia crocorum, but it bears 1- 4-septate brown spores after
the manner of Cladosporhim ; the fruiting branches are compacted together
and take the form of short, obtuse teeth, as in the compacted form of
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