Hysterangiales » Trappeaceae » Phallobata

Phallobata alba

Phallobata alba G. Cunn. 1926, in Castellano & Beever, New Zealand Journal of Botany, 32(3), 305-328 (1994).

Etymology: From Latin albus, white, referring to the colour of the fresh peridium.

Diagnosis: Basidiomata to 4.5 cm diam., variously shaped, convoluted and lobed, white to pale grey when fresh, yellow brown when dried, glabrous. Gleba green to olive, gelatinous, some lobes completely sterile; locules elongate to irregular, filled with spores. Rhizomorphs attached at base, up to 1 mm diam., concolorous with peridium. Columella prominent, dendroid, opaque when fresh. Taste not noted. Odour nil. Peridium not separable from gleba, 1-1.5 µm thick, 2-layered; epicutis 250-500 µm thick, of hyaline, thin-walled, loosely interwoven hyphae, 4-5 µm diam., with scattered (much more numerous near peridial surface), isodiametric, inflated cells, 15-18 µm diam., clamp connections common; subcutis 500-1400(-5000) µm thick, of hyaline, thin-walled, loosely interwoven hyphae, 1-2 µm diam., in a gelatinised matrix, clamp connections absent. Sutures absent. Trama up to 50 µm thick, of hyaline, thin-walled, subparallel to loosely interwoven hyphae, 1-2 lµm diam., in a gelatinised matrix, clamp connections absent. Basidia "8-spored" (Cunningham). Spores smooth, 2-3.5(-4) x 1-1.5 µm, ellipsoid, apex and base obtuse; wall <0.5 lam thick. Utriele absent. Spore colonr in KOH hyaline singly, pale green in mass.

Index Fungorum Number: IF256162


Figure 1. Phallobata alba. A, Basidioma exterior with portion of lobe sliced to expose gleba (PDD 47823). B, Basidioma sliced through glebal region and sterile lobes (PDD 56745). C, Basidiospores by bright field (PDD 1187). D,Basidiospores by SEM (PDD 1187). Scale: 1 cm (A, B), 10 µm (C); 1 µm (D).



Castellano, M. A., & Beever, R. E. (1994). Truffle-like Basidiomycotina of New Zealand: Gallacea, Hysterangium, Phallobata, and Protubera. New Zealand Journal of Botany, 32(3), 305-328.


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