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Nomenclature

Russula faustiana Sarnari
Boll. Ass. micol. ecol. Romana 9 (25): 16. 1992.

Original diagnosis

Species media, pileo firmo, (35) 45-85 (120) mm lato, e convexo expanso, demum depresso, margine obtusa, vix sulcata, cute secernibili, subvelutina, colore pallido, dilute ochraceo, praesertim griseo avellaneo, raro brunneolo subvirescente, plus minusve rubiginoso maculato vel striato. Lamellis obtusis, postice adnatis, plus minusve confertis, fragilibus, pallide cremeis, acie interdum punctis rubiginosis variegata. Stipite (25)-30-70 x 9-22 mm, superne dilatato, deorsum attenuato, pruinato, dein tenuiter rugoso, e albo saepe partim rubiginoso maculato. Carne firma, albidula, subimmutabili, odore vix ullo, sapore dulci sive in lamellis paulum acri, cum Gaiaco mediocriter caerulescente. Sporis in cumulo cremeis, circum IIc in Cod. Romagnesii, obovoideis, 6,4-8 x 5,4-6,2 µm, cristatis, e zebratis partim interdum vix subreticulatis, verrucis usque 0,65 µm latis. Basidiis tetrasporis, 45-55 (63) x (8) 9,5-11,5 µm. Cystidiis (50) 60-80 (94) x (8) 10-13 µm. Epicute pilis amplissimis, obtusis, loculis brevibus, (5) 8-10 (12) µm latis, cum dermatocystidiis saepe brevissimis, 7-10-12 µm latis. Habitatione in fagetis calcareis, ubi frequentissima. Holotypus "Colle Bertone" (Interamnae provinciae), 9-7-86 lectus, in herb. IB conservatur, nº 91/74.

Typification

Holotypus: Sarnari 91-74 (IB)
Europe: Italy: Terni: Colle Bertone, not far from Polino
In Fagus woodland

Description

Photographs

Microscopy

SEM photos