Coll. PR 5369 © P. Roux

Mattirolo Iconotypus

Choiromyces magnusii (Mattir.) Sacc., Syll. fung., 8: 901 (1889).

Basionym Terfezia magnusii Mattir., Mem. R. Accad. Sci., Torino, ser. 2, 38: 390 (1887).

Diagnosis Terfezia Magnusii, Mattirolo, nov. spec. Tav l, fig. 8, 9, 12. – Tav. II. fig. 8.
Dictio diagnostica. Terfezia subglobosa, undique irregulariter gibboso-sulcata, ab avellanae ad pugni mensuram et ultra varians. — Integumentum crassiusculurn, laeve, continuum, initio amoene ochraceum, dein ochraceo-ferrugineum, aliquando sparsim dilute rufescit. Caro solida, pulposa, lacunis destituta, initio ochraceo-rubiginosa, deinde fuscata, venis numerosis albidis, undique eleganter (instar genuinorum Tuberorum) variegata. Exsiccatione contrahitur uti in T. Borchii Vitt. Asci obovati, elongati, quasi lagenaeformes. Long. 193: Lat. 59 microm. Sporae vix coloratae et vix echinatae, veluti dense punctatae, sphaericae. Diam. 21 microm. Fungi arrhizi, globosis varietatibus T. Magnati Vitt. et T. Borchii Vitt., plane referendi. Maturi laeviter odorantes (uti Terfezia Leonis Tulas). Inter Tubera esculenta viliora. Hab. In territorio Domus-Novas (Iglesias-Sardinia), vere invenitur.

Type Pl. 1, fig. 8, 9 (Mattirolo) - lectotypus

MycoBank 247206

Notes
1) The combination C. magnusii is usually attributed to Paoletti (in Sacc., 1910), but it must be attributed directly to Saccardo (1889).

Classification: Tuberaceae, Choiromyces

Created on 27/05/2015.

Updated on 01/08/2023.