Hyphodontia curvispora
John Eriksson & Hjortst. 1969
Svensk Bot. Tidskr. 63(2): 224.
Select illustrations:
Illustrated areas
within the basidiocarp
Synonym:
Chaetoporellus curvisporus (John Eriksson & Hjortst.) John Eriksson & Hjortst. in Eriksson
& Ryvarden 1973, The Corticiaceae of North Europe, Vol. 2, S. 561.
Holotype: Sweden, Dalarna, Hamra, Börningsberget, on a fallen branch of Picea abies in a Vaccinium myrtillus-Picea abies forest, leg. J. Eriksson, 14.09.1966. Herbarium GB.
Paratype: Swede, Västergätland, Töllsjö, south of Skogstjärn, 250 m alt., on Pinus sylvestris, leg. K. Hjortstam, 29.09.1968, Herbarium GB. Swede, Småland, Rumskulla, north of Kvill. Nationalpark, on a dropped branch of Picea abies, leg. Ä. Strid, 10.09.1964, Nr. 260, Herbarium GB.
Macromorphology:
Resupinate, odontioid, white up to yellowish, margin thinning out, Aculei up to 1 mm long, positivly geotropic growth.
Micromorphology:
- Spores:
- 4-5 x 1-2 µm, semicircle formed, thin-walled, smooth, inamyloid, apiculus hard to see, even with a strong magnification.
- Basidia:
- 10-16 x 4-5 µm, young clavate, mature cylindric to clavate with one median constriction and one basal clamp each.
- Sterigmata:
- Four, up to 2 µm long.
- Cystidia:
- Tubular, thin-walled trama cystidia with several constrictions and a basal clamp each, up to ca. 80 µm long, 4-7 µm in diameter, apically obtus. They arise from the suhymenium or from subicular hyphae just under the subhymenium. 3% Phloxin solution dyes their contents more than the contents of the surounding hyphae.
- Clamps:
- All primary Septa with one clamp each.
- Hyphae:
- Hymphal system monomitic. Subiculare hyphae 2-4 µm in diameter, thick-walled (up to 1 µm). Subiculare hyphae not running undirected. Subhymenial hyphae 2-4 µm in diameter, thin-walled to slightly thick-walled (Aculei:
- In the center of the aculei there are slightly thick-walled and parallel running hyphae. The haphal endings are thin-walled, obtus and 3-4 µm in diameter. Tubular trama cystidia arise from the subicular part of the aculus.
Habitate and substrate:
Coniferous forests. On rotten wood: Picea, Pinus.
Biogeography:
This rare species seems to be limited in its distribution only to Europe.
Grosse-Brauckmann (1990) mentioned only one collection in Germany.
Eriksson & Ryvarden (1973) also have few records from Scandinavia.
Remarks:
H. curvispora belongs to a small natural group within the genus Hyphodontia, which has a particulare thin-walled type of cystidia: This type can be compared with the tubulare thick-walled trama cystidia of e.g. H. subalutacea or H. barba-jovis. The members of the group posessing narrow allantoid spores and thin-walled trama cystidia are easily distinguished:
Hymenium odontioid
Spores narrow allantoid......H. alutacea
Spores semicircle formed.....H. curvispora
Hymenium irpicoid to poroid......H. latitans
Herbarium specimens:
Norway, Sųr-Trųndelag, Orkdal, Songli, leg. L. Ryvarden, 25.08.1982, LR 20228, Herbarium GB.
Swede, Dalarna, Hamra, Börningsberget, on a fallen branch of Picea abies in a Vaccinium myrtillus-Picea abies forest, leg. J. Eriksson, 14.09.1966. Herbarium GB.
Swede, Västergötland, Töllsjö, south of, 250 m alt., on Pinus sylvestris, leg. K. Hjortstam, 29.09.1968, Herbarium GB.
Swede, Smäland, Rumskulla, north of Kvill. nature park, on a dropped branch of Picea abies, leg. Ä. Strid, 10.09.1964, Nr. 260, Herbarium GB.
Poland, Bialowieza, mixed forest; on Picea excelsa, leg. S. Domanski, 29.08.1956, Nr. 1436, Herba-rium GB.
Rumania, Distr. Suceava, Voronet, forest with Picea and Abies, leg. N. Hallenberg, M. Toma, 15.10.1983, NH 8013, Herbarium GB.
Go to:
Dr. Ewald Langer - 15. Nov. 1995
ewald.langer@uni-tuebingen.de