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Nomenclature

Lactarius leonis Kytöv.
Karstenia 24: 46. 1984.

Original diagnosis

Pileus 6-16(-20) cm. latus, convexo-depressus, dein plano-convexus, margine laxo involuto, aequaliter lanato, dein recto, saepe leviter undulato, glabro; gelatinosus, ochraceus vel pallide luteus, obscure zonatus, margine pallido. Latex albus, ad aeris contactum mox saturate sulphureus, in KOH aurantiacus. Sapor acer. Lamellae rectae, prope stipem rarrissime furcate. Stipes 4-8 cm. longus, 1.5-3 cm. crassus, cavus, siccus, pallidus vel pileo concolorus, scrobiculatus. Sporae 6.8-9.1 x 5.9-7.3 µm., subglobosae, ornamento amyloideo tenui (sub)reticulato. Macrocystidia dispersa 45-130 x 6-13 µm., subulata, 50-100 µm. projecta. In Fennoscandia calciphilus, in silvis ugliginosis, cum Picea abiete. Augustio et Septembri. Holotypus: Sweden, Ångermanland, Fjällsjö, S end of the lake Tàsjön, by the brook from Storjärn, S of the road, narrow, rather open, alluvial spruce-hardwood swamp with Picea abies, Betula pubescens and Salix ssp., 260 m., abundant with Lactarius scrobiculatus and L. olivinus, 19.VIII.1981, P. & I. Kytövuori 81634 (H, isotypi in MICH, K, O, PRM, UPS, Z).

Typification

Holotypus: Kytövuori 81.634 (H)
Europe: Sweden: Angermanland, Fjällsjö, lake Tasjön
Picea

Description

Photographs

Microscopy

SEM photos