Pseudohydnum gelatinosum

The toothed jelly fungus, Pseudohydnum gelatinosum (Scop.) P. Karst.

Synonyms

Hydnogloea gelatinosa (Scop.) Curr. ex Berk.
  Grevillea 1(no. 7): 101 (1873)
Hydnum gelatinosum Scop., Fl. carniol.
  Edn 2 (Wien) 2: 472 (1772)
Steccherinum gelatinosum (Scop.) Gray
  Nat. Arr. Brit. Pl. (London) 1: 651 (1821)
Tremellodon gelatinosum (Scop.) Pers.
  Hymenomyc. eur. (Upsaliae): 618 (1874)

Common names

Toothed jelly fungus
False hedgehog mushroom
White jelly mushroom
Jelly tongue
Jelly false tooth
Gallertiger Zitterzahn (German)
Eispilz (German)
Tremellodon gélatineux (French)
Tremelle gélatineuse (French)

Description

Fruiting body: 1-8 cm diameter, tongue- or spoon-shaped, flexible, rubbery, gelatinous; surface minutely roughened to almost smooth.
Teeth: pointed and conspicuous, transparent to white.
Stem: continuous with cap, up to 6 cm long, lateral; sometimes absent.
Spore print: white.
Spores: ovoid to subglobose, 5-7 x 5 µm.
Habitat: grows solitary, scattered or gregarious on rotting logs, twigs, and humus; saprobic; thrives in cool, wet weather (autumn).
Edibility: edible but bland.

Bioactive compounds

Lectins

In a survey of 403 species of fungi tested for lectins with human and rabbit red blood cells, only this species had anti-A serologic specificity (Pemberton, 1994).

Medicinal properties

Antitumor activity

Polysaccharides extracted from the mycelial culture of P. gelatinosum and administered intraperitoneally into white mice at a dosage of 300 mg/kg inhibited the growth of Sarcoma 180 and Ehrlich solid cancers by 90% (Ohtsuka et al., 1973).

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Links

Mushroom Expert
Mykoweb
CalPhotos
Austrialianfungi.blogspot
Fungi on wood
BioPix

References

Francis SM.
Jelly fungi.
Mycologist. 1992 6(2):78-79.

Ohtsuka S, Ueno S, Yoshikumi C, Hirose F, Ohmura Y, Wada T, Fujii T, Takahashi E.
Polysaccharides having an anticarcinogenic effect and a method of producing them from species of Basidiomycetes.
UK Patent 1331513, 26 September 1973.

Pemberton RT.
Agglutinins (lectins) from some British higher fungi.
Mycol Res. 1994 98:277-90 Part 3.

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