Table Of ContentTHE CORTlCIACEAE OF NORTH EUROPE
by
John Eriksson and Leif Ryvarden
with drawings by
John Eriksson
Volume 3
The Corticiaceae of
North Europe
by
John Eriksson and LeifRyvarden
with drawings by
John Eriksson
Volume 3
Coronicium - Hyphoderma
Fungiflora - Oslo - Norway
©John Erikssonand LeifRyvarden 1975
Universitetsforlagetstrykningssentral, Oslo
ACKNOWLEDGMENTS
This volume, as the preceding one, has benefited from generous support
and assistance ofmany friends and colleagues. We are indebted to S. Sun
hede for his skill with many photographs, and both he, N. Hallenberg
and K. Hjortstam have contributed with numerous collections. K. Hauer
slev, Denmark, has very generously sent us many interesting specimens
from his rich Danish collections, while Dr. E. Parmasto,Tartu, USSR, has
sent types ofhis many Siberian species. Dr. L. Weresub, Ottawa, Canada,
has in many ways contributed to the flora especially what concerns ques
tions on nomenclature for which we thank her most sincerely. Above all
we are deeply indebted to Dr. A. Strid, Umea, who has been coauthor
withJohnErikssonon the manuscript on Hyphoderma. Mrs. M. Espeland,
Oslo, has suggested improvements in the English text. TheResearchCoun
cil of Norway has borrowed us money enablingus to publish this volume
while the Research Council of Sweden has contributed to the cost ofthe
illustrations. Further)we are much obliged to the scientific staff of the
herbariaof Uppsala, Stockholm, Helsinki, Leiden and Kew, who have
sent us type material for comparison.
New taxa and combinations proposed in this volume:
Coronicium gen. novo p.295.
Coronicium gemmzferum comb. novo p.297.
Cristinia muc£da comb. novo p.311.
Cystostereum subabruptum comb. novo p.327.
Dendrothele commixta comb. novo p.355.
Fibriciellum gen. novo p.373.
F£bric£ellum silvae-ryae spec. novo p.375.
Gloeocystidiellum subasperisporum comb. novo p.443.
Hyphoderma albocremeum comb. novo p.453.
Hyphoderma capitatum spec. novo p.461.
Hyphoderma echinocystis spec. novo p.471.
Hyphoderma litschaueri comb. novo p.481.
Hyphoderma obtuszforme spec. novo p.493.
Hyphoderma praetermissum comb. novo p.505.
Hyphoderma sibiricum comb. novo p.535.
Hyphoderma subdef£nitum spec. novo p.539.
Hyphoderma tsugae comb. novo p: 541.
The Corticiaceae of North Europe byJohn Eriksson and Leif Ryvarden
with drawings byJohn Eriksson. Volume 3, Coronicium to Hyphoderma.
Printing date: January 15,1975.
288
Fig. Ill. Auriculariopsisampla. a) dried fruitbodies b) swelled fruitbodies c)
swelled,cupulate fruitbody d) bracket-shaped, swelled fruitbody from above.
ColI. and photo S. Sunhede 3600 (onPopulus, Czechoslovakia).
289
Auriculariopsis
Auriculariopsis Maire
Bull. Soc. mycol. France 18 (suppl.) p. 102, 1902.
Fruitbody pileate, cupulate (discomycete-like), upperside felted, the
lower hymenial side radially folded, when wet soft and gelatinous, when
dried more or less folded together; hyphal texture duplex, consisting of
an upper layerof thickwalled, unbranched hair hyphae and a hymenial
layer ofgelatinous, densely united hyphae with clamps; no cystidia; ba
sidia subclavate, in a dense palisade (Phlebia-like); spores allantoid,
smooth, thinwalled, non-amyloid.
Genotypus:Auriculariopsis ampla (Lev.) Maire.
Remarks. The genus issegregatedfrom Cytidia, in which it was as a rule
placed earlier. It is, however, very well distinguishedfrom Cytidia, which
has a catahymenium ofdendrohyphidia and large basidia, while inAuri..
culariopsis the hymenium is a normal phlebioid one. Its closest relatives
seem to be Cytidiella and Merulius and its place should therefore be in
Corticiaceae in the wide circumscription given the family here, not in
CypheUaceae, to which it is often referred. The relations to Cytidiella
are very close, but as this genus lacks the duplex structure, it may be cor
rect to keep them apart.
290
r---------<
(mm
Fig. 112. Auriculariopsisampla. a) section through fruitbody b) fruitbodies, ab.
nat. size c) section through part ofthe fruitbody, showingposition offig. 112d,
113a, and 113b d) section through the upper, felted layerofthe fruitbody. - Fig.
b from colI. K. Hauerslev, othersfrom colI. Pouzara.o. 1953-11-08.
291
Auriculariopsis
Auriculariopsis ampla (Lev.) Maire, Fig. 111-113
loco cit. - Cyphella ampla Lev., Ann. sci. nat. 111:9
(Bot.) p. 126, 1848.
Fruitbody pileate, cupulate or bellshaped, ab. 1 cm in diam., directed
downwards, with white felted upperside, when fresh and wet with pale
ochraceous to light brown (cinnamon) hymenium, folded in radial ridges,
margin even, slightly revolved, finely fibrillose; when dried the fruitbody
is shrunk and more or less folded together.
Hyphal texture duplex, forming two distinct layers: I} upper layer form
ing the pubescence or surface felt, consisting ofthickwalled, twisted, non
gelatinous hair hyphae with practically no septa and clamps 2} lower,
tramallayerofgelatinous, richly branched but mainly parallel hyphae
with numerous clamps and anastomoses. The hair hyphae of the upper
layer are formed as a transformation ofgelatinous hyphae from the
tramallayer or from much branched, irregularly twisted intermediate
hyphae. From onetransitional hyphae several hair hyphae may branch
off. The diameter ofthe hair hyphae is mostly 2-3 pm; the gelatinous
hyphae are wider and may swell to 7 or even lapm.
Cystidia none.
Basidia subclavate, 25 - 30 x 4 - 4,5 pm, with 4 sterigmata and basal
clamp.
la (-
Spores allantoid, smooth, thinwalled, non-amyloid, 7,5 - 12) x
2,5 (- 3) pm.
Habitat. On dry branches, mainly ofSalix and Populus.
Distribution. It is widely distributed in S. and C. Europe and is locally
common, e.g. in the sand dune areas ofHolland. In N. Europe it is hi
therto found only in Denmark, where it is collected inJylland, Fyn,
Lolland, and Bornholm (FriesiaIII p. 67, where it is well described and
figured by F.H. Moller) and in Sjelland (by Hauerslev). The Danish col
lections were made onPopulus, both onP. tremula and on introduced
foreign species.
292
u
Fig. 113. Auriculariopsisampla. a) sectionthrough the transitiona11ayerofthe
fruitbody b) section through hymenium, subhymeniumand part oftrama c) hy
phaefrom tramallayer d) connectionsbetween tramal hyphae and hairhyphae
e) basidia f) spores. Yellowish transitional hyphae dotted. Coll. Pouzar a.o.
1953-11-08.
293
Auriculariopsis
Remarks. The species has generally been called Cytidia flocculenta (Fr.)
.v.H. & L. It is, however, not cogeneric with the type ofCytidia. In the
Uppsala herbarium there is an authentic specimen of Thelephora floccu
lenta Fr. from Femsj6 in Sweden. The label is written with Fries's own
hand. Lundell has put alabel into the envelope and states that therewas
nothing left ofthe fungus already in 1944. There are, however, two
pieces ofwood and on one ofthem there is a small piece ofa corticioid
fungus. It is determinable and is Corticium evolvens (Fr.) The epithet
flocculenta cannot therefore be used for the fungus described here.
Auriculariopsisampla has often been referred to Cyphellaceae but its
closest relatives are certainly to be found among the phlebioid corti
cioid fungi.
