4 Grad Süd (26: NICHT Coriolopsis ->Fuscoporia gilva (Phellinus gilvus))

Hallo,

in meiner Tropenpilzsammlung (Mahé, Seychellen) sind mehrere trametenähnliche Pilze,
darunter diese braunen Exemplare (Nr. 26) mit auffallend warziger Oberfläche und extrem feinen Poren (7-8 pro mm), die Fruchtkörper waren bis 6 cm breit, 4 cm abstehend, am (herablaufenden) Ansatz bis 1 cm, sonst am Ansatz ca. 5 mm dick,
die Trama dünn, die Röhren geschichtet, mit KOH (20%) Färbung etwas dunkler-braun.

Mit Umwegen über Coriolopsis aspera (ähnliche Oberfläche, aber viel grobere Poren) bin ich auf Coriolopsis strumosa und Coriolopsis sanguinaria gestoßen, beide in Afrika verbreitet und mit feinen Poren (6-7-8 pro mm)
Die einzelne Wuchsform würde zwar für C. strumosa sprechen (mit Sekundärwarzen bei älteren Pilzen), aber die Warzen sind schon bei kleinen Pilze ausgeprägt.
Coriolopis sanguinaria soll eine mittel-braune faserige Tramastruktur haben (ist hier so), C. strumosa feste dunkelbraune Trama.
C. sanguinaria soll oft am Substrat herablaufende Poren haben, das ist hier ansatzweise so.

Mycobank, C. strumosa

Zitat

CORIOLOPSIS STRUMOSA (Fr.) Ryv.

FRUITBODY annual, solitary or as small clusters, usually dimidiate with a contracted or tapering base, applanate flabelliform to reniform, up to 15 cm long and 12 cm wide, up to 5 mm thick at the base, coriaceous and flexible, margin thin and sharp, in some specimens with a short sterile stipe-like extension of the base. Such a rudimentary stipe may become up to 2 cm long and about 1 cm in diameter.
PILEUS olivaceous-brown, umber or hazel-brown, glabrous, first dull and velvety to touch, soon smoother and semishiny with numerous concentric, slightly sulcate zones, with age the pileus becomes finely warted to finely scrupose starting from the base, often a secondary azoned outgrowth will develop from the base and cover the semi-glossy pileus which with age and drying also develops some radial striae, margin thin, undulating and somewhat incised or lobed.
PORE SURFACE in shades of brown from whitish-brown when actively growing, then darkening when touched, later more dull sepia to olivaceous-brown, pores entire, round, 4-6 per mm. Tubes more or less concolorous with pore surface, 1-2 mm deep.
CONTEXT dark olivaceous-brown, dense, homogenous often with some weak concentric zones, up to 5 mm thick, black in KOH.
HYPHAL SYSTEM trimitic, generative hyphae with clamps, hyaline, thin-walled often flattened and distorted, 1-3.5 µm in diameter, moderately branched, skeletal hyphae thick-walled but always with a distinct lumen, often only moderately thickened walls, hyaline to yellow, 3-8 µm in diameter, walls usually 1-1.5 µm thick, often of slightly irregular appearance, binding hyphae often difficult to observe, hyaline, moderately thick-walled and branched, about 2.5 µm wide. SPORES cylindrical, hyaline, smooth and thin-walled (8.5)9-12 x 3-3.5(3.7) µm, non-amyloid.
HABITAT. On dead wood.
DISTRIBUTION. Widespread in the paleotropics from Western Africa to Australia. Fairly common in East-Africa in areas with seasonal dry periods.
REMARKS. The species may be recognized by its small pores, the dimidiate fruitbodies, the glabrous, mostly olivaceous pileus and the secondary warts and growth from the base when this is developed. The pores are in some specimens almost invisible to the naked eye and darken when touched in fresh condition. It is easily separated from large specimens of C. sanguinaria which have equally small pores, but have yellowish-brown to pale rusty-brown colour.

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Mycobank: C. sanguinaria

Zitat

CORIOLOPSIS SANGUINARIA (Kl.) Teng,

FRUITBODY annual to perennial, pileate to resupinate, solitary to densely imbricate or often, as several pilei, more or less fused along the upper edge of a widely effused fruitbody, single pilei rarely above 6 cm wide and 10 cm long, 2-4 mm thick, bit in fused specimens up to 1 cm at the base, single fruitbodies may occur, then sessile, dimidiate, conchate to flabelliform to reniform, margin undulating, frequently lobed or incised and sharp, coriaceous to flexible in thin specimens, more hard in thicker ones.
PILEUS glabrous, rarely smooth, commonly with a finely warted or rough surface and with some faint radial striae, azonate or with some weak concentric zones, first ochraceous then evenly cinnamon to yellowish-brown, with age a reddish cuticle may develop from the base as irregular patches or bands as the upper hyphae agglutinate, in old specimens this cuticle may attain a chestnut or bay colour, in African specimens the reddening seems to be less prominent and more irregular than observed in some Asian specimens. PORE SURFACE applanate or widely effused and decurrent on the substrate, ochraceous when young, cinnamon to deep fulvous in older specimens, frequently, but not always, with a whitish-bluish-ashy bloom or tint. PORES entire, round to slightly angular, 5-8 per mm, in some specimens almost invisible to the naked eye, tubes up to 4 nm long, concolorous with pore surface.
CONTEXT fibrous, golden brown to cinnamon, 2-8 mm thick.
HYPHAL SYSTEM trimitic, generative hyphae with clamps, hyaline to light yellow, thin-walled, 2-3 µm in diameter, skeletal hyphae thick-walled but always with a distinct lumen, golden-yellow to brown, 2-8 µm in diameter, abundant in the context, thin to slightly thick-walled, hyaline to yellowish, mostly 2-4 µm wide, often with many short branches tapering towards the ends. SPORES oblong ellipsoid to subcylindrical, 5-8 x 2-3.5, hyaline, thin-walled, smooth and non-amyloid, fairly variable within the same collection. The measurements given by Cunningham (1965:242 sub Phellinus bicolor) are smaller, 4-5.5 x 1.5-2 µm. If this is true, it may be that a Asian species can be recognized as such. The correct name should then probably be based on P. bicolor Jungh. which was described from Java. The type of P. sanguinaria was collected on Mauritius.
HABITAT. On dead angiosperms of all kinds. Quite common species.
DISTRIBUTION. Paleotropical species, widespread in East Africa and collected from Ethiopia south to Malawi.
REMARKS. The species is usually easy to recognize because of the very small pores and the narrow pilei, either imbricate or as small pilei on an effused and decurrent fruitbody. The pileus is finely roughened and dull when young. Specimens are frequently eaten by insects which leave a fine-grained powder clinging to the pileus and pore surface.

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26a

26b

26c

26d

26e

26f

Hallo Frank,
ja, das ist schon etwas seltsam.
Auf den Namen Coriolopsis aspera war ich in dem Google-Book "The Macrofungus Flora of China's Guangdong Province" gestoßen, die Beschreibung dort passte auch sehr gut (Wuchsform, Oberfläche, Trama) - nur eben die Porenanzahl (3-4 pro mm) überhaupt nicht, die Poren sind hier mit bloßem Auge kaum erkennbar.

http://books.google.sc/books?h…iolopsis%20aspera&f=false

Auch in der Mycobank-Beschreibung wird C. aspera u.a. über die Porenanzahl von den anderen abgegrenzt.

Mycobank, C. aspera

Zitat

CORIOLOPSIS ASPERA (Jungh.) Teng.
FRUITBODY annual to perennial, solitary or imbricate making clusters of pilei from the same base, often somewhat effused on the substrate, up to 10.5 cm broad, 5.5 cm wide and 1(1.5) cm in total thickness, but several fruitbodies may fuse to form a larger one. Consistency hard when dry. PILEUS dimidiate to flabelliform with a tapering base, flat to slightly convex, colour dark fulvous to ferruginous in young specimens, more chestnut to reddish-brown with darker patches when older, usually with a distinct reddish tint, concentrically sulcate and ridged, radially striate with warts, and scrupose tuft of agglutinated hairs, most erect near the base, more flattened near the margin. The hair disappear. A very thin cuticle is present. Margin acute to more round, thin, often somewhat deflexed. PORE SURFACE fulvous to rusty-brown often with an ashy grey tint, usually darker than the context, pores round, entire, relatively thick-walled, 3-4 per mm, tubes concolourous,' up to 7 mm long. Margin often sterile, 1-2 mm broad. CONTEXT fulvous, rusty-brown to umber, turning black in KOH, usually zoned reflecting the growth zones, up to 10 mm thick.
HYPHAL SYSTEM trimitic, generative hyphae often collapsed and difficult to find, hyaline, thin-walled, but always with a distinct lumen often with secondary adventitious septa, up to 8 µm in diameter. Binding hyphae irregular in outline, strongly branched or with a few long tapering branches, thick-walled, yellow to light brown, up to 6 µm in diameter. SPORES cylindrical, 9-12 x 3-4.5 µm, hyaline, thin-walled and non-amyloid.
HABITAT. On dead angiosperms.
DISTRIBUTION. Throughout the paleotropic area, but seemingly more common in Asia and Australia than in Africa where it is rather rare. Specimens have been seen in Africa from Cameroon, Ethiopia, Kenya and Tanzania.
REMARKS. The species may be recognized when it is typically developed by its forked hairs and erect processes on the pileus, usually in reddish-brown colours and rather large pores. Later the hairs disappear and only a more finely scrupose or warted surface is left. It may then be confused with C. sanguinaria which, however, is more golden yellow in the context and the pore surface besides the pores are smaller, the same goes for the spores. Further C. aspera is a more applanate and pileate species while C. sanguinaria frequently has a decurrent pore surface.

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Mit der Verbreitungsangabe ist das auch so eine Sache "rather rare in Africa" - nun sind die Sey. ja mitten im Ozean, und auch bot. sind dort Arten aus dem ostafrik. bis indo-paz. Raum vertreten.

Dann merken wir den schon mal vor, zur Untersuchung

Hallo Frank,
ja nur kein Stress mit meine Porlingen, so wichtig ist das schließlich nicht, aber für mich eben auch ein interessanter Versuch zu schauen, wie weit man kommt.
Vielen Dank auch für die Liste, da habe ich so einiges schon (bzw. noch mal) nachgelesen, bzgl. der Beschreibungen.

Hallo,
es gibt Neuigkeiten , Frank hat sich meine Tropenporlinge angeschaut, und bei manchen gibt es ein eindeutiges Ergebnis.
Hier das z.B. ist gar keine Coriolopsis, wie ich vermutet hatte ... sondern:
Fuscoporia gilva (also im Prinzip ein Phellinus, eine von Phellinus abgetrennte Art)

Mycobank: Beschreibung Fuscoporia gilva (Phellinus gilvus)

Sucht man Vergleichsbilder, dann glaubt man es kaum, denn da kommen überwiegend Beispiele aus dem nordamerikanischen Raum, aus temperatem Klima. In der Beschreibung (und in weiteren Beschreibungen) werden aber etwas unterschiedliche Erscheinungsformen erwähnt (vor allem dünnere Fruchtkörper in tropischen Ländern, auch die feinwarzige Oberfläche wird genannt, die muss wohl auch nicht immer vorhanden sein).