Campanella peullensis Singer, Beih.

Honan, Amy H., Desjardin, Dennis E., Perry, Brian A., Horak, Egon & Baroni, Timothy J., 2015, Towards a better understanding of Tetrapyrgos (Basidiomycota, Agaricales): new species, type studies, and phylogenetic inferences, Phytotaxa 231 (2), pp. 101-132 : 126

Campanella peullensis Singer, Beih. Nova Hedwigia 29: 85 1969.

Synonyms: Pterospora peullensis (Singer) E. Horak Sydowia 36: 134. 1983.

Tetrapyrgos peullensis (Singer) E. Horak Sydowia 39: 102. 1987 [1986].

Holotype:— CHILE. Llanquihue Prov. : Peulla, on Chusquea sp. , 20 March 1959, collector not reported ( LIL).

The holotype specimen is unavailable at LIL (lost?) ; known only from the type specimen; no material examined. Description from protologue: Pileus 5–7 mm diam., pallid. Lamellae distant, venose-ramified, white. Stipe 3–5 × 0.7 mm, lateral, pallid. Basidiospores 9–11 × 6–7 μm, ellipsoid or seldom with a rounded lateral bulge. Pleurocystidia and metuloids absent. Cheilocystidia 54–58 × 3.5–4 μm, tibiiform with a capitulum 6.2–10.3 μm diam., thin-walled. No data were provided on the pileipellis, pileus trama tissues and gelatinization of tissues.

Status: Without data on the gelatinization of pileus tissues and more details on basidiospore shape, it is impossible to determine if the species is best placed in Campanella (as intended by Singer 1969) or in Tetrapyrgos (as designated by Horak 1987). The presence of a lateral, well-developed stipe suggests Tetrapyrgos , whereas cheilocystidia lacking central diverticula and non-tetrahedral spores suggest Campanella .