Echinoporia aculeifera

typus generis!

Synonyms:

= Trametes aculeifera Berk. & Curt. 1868, J. Linn. Soc. Bot. 10: 319.

= Polyporus aculeifer (Berk. & Curt.) Overh. 1953, Polyp. United States, p. 340.

Holotype: Cuba, leg. C. Wrigler, in Herb. Berkley No. 147, Herbarium K.

Select illustrations:

A

B

B

Makromorphology:

Resupinate to pileate. Pileus 1-2 cm effused from substrate, up to 5 cm long, 1-4 mm thick. Pores up to 3 mm long, 1-3 pores per mm, pore walls up to ca. 100 µm thick. Basidiocarp ochraceous (dried material), context white to ochraceous. Upside of basidiocarp with britle like denticles, 1-3 mm in length. They grow negative geotropic and produce arthroconidia on their tips. Margin of the pileus split by lobes. The upside of the lobes are also covered with britle like denticles.

Micromorphology:

Spores:

4-5 x 3-3,5 µm, ellipsoid to subglobos, thinwalled, smooth, inamyloid. (fide Gilbertson & Ryvarden 1986: 257) There were no spores found in the treated type material.

Basidia:

12-15 x 4-6 µm, young clavat, mature clavat to suburniform with a constriction and basal clamp.

Sterigmata:

four

Cystidia:

1. Lagenocystidia, basally swollen, apikally tapering, walls slightly thickwalled (up to 0,5 µm). Apex obtus with needle like crystals (soluble in 5%-iger KOH). The lagenocystidia arise from the hymenium.

2. capitate cystidia with a light refracting, granular drop of exsudate (up to 8 µm in Diameter). Tey arise from the subiculum ot subhymenium. The exsudat is not soluble in 5% KOH.

Clamps:

All primary septa have one clamp each.

Conidia:

Arthrokonidia, 10-16 x 4-6 µm, ellipsoid, somewhat unregular in form, smooth, hyalin, on one end with the rest of a hook like clamp. Originating at the tips of bristle like denticles on the surface of the basidiocarp by dissection. Look up Ontogeny!

Hyphae:

Hyphal system dimitic. Skelettal hyphae 2,5-5 µm in diameter, thickwalled (up to 2 µm), wall strongly light refracting. Generative hyphae 2-5 µm in diameter, thinwalled to slightly thickwalled (0,5 µm). Subhymenium very dense, difficult to microscope due to collapsed hyphae. In the subiculum and the denticles generative and skelettal hyphae are running side by side.

Pores:

Pore walls consist of thickwalled skelettal hyphae and thinwalled generative hyphae. The tips of skelettal hyphae become thinwalled towards the pore mouth.

Habitate and Substrate

Biogeography

Remarks

examined Herbarium specimens

References

• Cunningham, G.H. 1965. Polyporaceae of New Zealand N. Z. Dep. sci. industr. Res. Bull. 164: 1-304.
• Gilbertson, R.L., Ryvarden, L. 1986. North American Polypores. Vol. 1. Fungiflora, Oslo, 443 pp.
• Overholts, L.O. 1953. Polyporaceae of the United States, Alaska and Canada. University of Michigan Press, Ann Arbor, 466 pp.
• Ryvarden, L., Johansen, I. 1980. A preliminary polypore flora of East Africa. Fungiflora, Oslo, 636 pp.

Go to:

Key
Species list
Complete list of references
Genera list
Homepage