Hyphodontia tomentosa

Select illustrations:

Synonyms:

= Grandinia tomentosa Berk. & Curtis 1868, Journ. Linn. Soc., Bot. 10: 326.

Holotypus: Cuba, leg. Wright, 1879, in Herb. Berkeley No. 311, Herbarium K.

Macromorphology:

Micromorphology:

Spores:

7-9 x 3.5-4.5 µm, suballantoid to cylindrical, thin-walled, smooth, inamyloid, without droplets (herbarium specimens).

Basidia:

13-22 x 4-6 µm, suburniform up to cylindric with one constriction and one basal clamp each.

Sterigmata:

Four, 4-5 x 1-2 µm.

Cystidia:

Tubular tramacystidia, slightly thick-walled (< 1 µm), apical thin-walled up to ca. 200 µm long. They arise from the subicular hyphae. The tubular tramacystidia are localized in the centre of the aculei, where the single cystidia are surrounded by cuff-like crystals.

Clamps:

All primary septa with one calmp each.

Hyphae:

Pseudodimitic, basal hyphae 2-4 µm in diameter, wall up to 1 µm thick, loosely hyphal context. Subhymenial hyphae 1.5-5 µm in diameter, thin-walled. In the whole basidiocarp accumulations of rhomboedric crystals (up to ca. 20 µm large) are present, which are not soluble in 5% KOH solution. Therefore it is difficult to analysis the hyphal context.

Aculei:

Aculei consist of parallel arranged, slightly thick-walled (< 1 µm) tramacystidia, which are surrounded by cuff-like crystals. Beside the tramacystidia there are generative hyphae which are somewhat sinuous.

Substrate and habitate:

Biogeography:

Remarks:

Spores ellipsoid, cylindric, slightly allantoid
  Spores ellipsoid..................................H. gossypina
  Spores cylindric up to slightly wide allantoid....H. tomentosa
Spores globose up to subglobose.....................H. brevidens

Herbarium specimens:

Go to:

Key
Species list
Complete list of references
Genera list
Homepage