Hyphodontia nudiseta
Warc. & Talb. 1963, Trans. Br. Mycol. Soc. 46(4): 468.
Holotypus: Australien, Adelaide, inside of worm tunnels in the earth, leg. J.H. Warcup, Nr. 15590, Herbarium ADW.
Select illustrations:
![[image]](nudise1i.gif)
![[image]](nudise2i.gif)
Macromorphology:
Resupinate, odontioid, white to creme-coloured, aculei up to ca. 200 µm long, standing very densely.
Micromorphology:
- Spores:
- 4,5-6 x 3-4,5 µm, subglobose to ellipsoid, thinn-walled, smooth, inamyloid, with one big droplet each.
- Basidia:
- 16-22 x 4,5-5,5 µm, suburniform to galzinoid, with several constrictions and one basal clamp each.
- Sterigmata:
- Four, up to 3 µm long.
- Cystidia:
- Subulate cystidia, up to ca. 50 µm long, basally up to 7 µm in diameter, apex obtuse. They are produced in the hymenium or subhymenium.
- Clamps:
- All primary septa with one clamp each.
- Hyphae:
- Hyphal system monomitic. Basal hyphae thin to slighlty thick-walled (1 µm), 2-4 µm in diameter. Subhymenial hyphae thin-walled, 3-5 µm in diameter.
- Aculei:
- Clustered cystidia are building the aculei.
Habitate and substrate:
Coniferous forest (Coniferous wood), summer green deciduous forst (Acer, Populus), roots in earth.
Biogeography:
Europe, Australia, Taiwan.
Remarks:
H. nudiseta was recorded over 50 times in th eregion of Adelaide (Australia) and was isolated from earth. Warcup & Talbot (1962) remark, that the H. nudiseta was often found in worm tunnels. The holotype was rechecked and it could be easily seen that the worm tunnels were dead and rotten roots.
The micromorphology of European specimens go very well together with Australian specimens. Only the cystidia may vary from subulate to slightly capitate. A constant character are the clustered cystidia. Discrimination against H. breviseta is given by the absence of moniliform cystidia.
H. nudiseta may be mixed up with H. knysnana. Both species are distinguished best by their spore form, the basal diameter of the cystidia and the basidal morphology.
|
| H. knysnana
| H. nudiseta
|
| Spores: |
5,5-6 x 3-4 µm | 4,5-6 x 3-4,5 µm
|
| Spore form:
| ellipsoid to cylindrical
| subglobose to ellipsoid
|
| Basidia:
| 1 to 2 constrictions
| several constrictions
|
| Cystidia:
| basal 4-5 µm in diam.
| basal up to 7 µm in diam.
|
|
| up to 75 µm long
| up to ca. 50 µm long
|
Herbarium specimens:
Sweden, Gästrikland, Öster färnebo, Dalälven, western slope of the island Törrö, on Populus sp., leg. K.-H. Larsson, 29.09.1988, KHL 7121, Herbarium GB.
Sweden, Halland, Släp, Särö Västerskog, on a twig of a conifer, leg. K.-H. Larsson, 26.08.1986, KHL 6314, Herbarium GB.
Norway, Hedmark, Löten, Flötholmen near Flöta, leg. K.-H. Larsson, Högholen, 02.10.1982, Herbarium GB.
Switzerland, Tessin, Ritorto, on white-rotted wood of Tilia cordata, leg. E. Martini, 01.12.1991, EM 3034, Herbarium E. Martini (CH-6676 Bignasco).
Taiwan, Ho-Hwan-San, Taroko Nationalpark, near the tunner at the rangers station, on coniferous wood, ca. 2500 alt., leg. E. & G. Langer, F. Oberwinkler, 05.07.1990, FO 42272, Herbarium F. Oberwinkler.
Australia, Adelaide, inside of worm tunnels in the earth, leg. J.H. Warcup, Nr. 15590, Herbarium ADW.
Go to:
Dr. Ewald Langer - 27. Febr. 1996
ewald.langer@uni-tuebingen.de