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Nomenclature

Lactarius formosus H.T. Le & A. Verbeken
Fungal Diversity 24: 189. 2007.

Original diagnosis

Pileus 27 mm diam., planoconvexus, leviter depressus, cum papilla parva; pileipellis
viscida, zonata, squamulosa, griseolutea, purpurasecens. Stipes 40 mm longus, 6 mm crassus, pileo concolorus, luteoalbus, purpurascens, scrobiculatus. Lamellae subdecurrentes, densae, ad 1 mm latae, luteoalbae. Contextus griseoalbus, purpureoalbus, gustu mitis. Latex cremeus ad luteoalbus. Sporae globosae ad ellipsoideae, 89.711.3(11.6) × 7.48.810.1 µm, reticulatae, cristis usque ad 0.6(1.6) µm altis ornatae; macula suprahilaris non amyloidea. Basidia 4877 ×
1318 µm, subclavata, tetraspora. Pleuromacrocystidia abundantia, 3590 × 813 µm, emergentia, subfusiformia. Pleuropseudocystidia non abundantia, emergentia, 811 µm diam., cylindrata vel tortuosa. Pileipellis cutis vel trichoderma, 120140 µm crassa.
Holotypus: THAILAND, Chiang Mai Prov., Mae Taeng Dist., Tung Joaw village, N19º08.07' E098º38.09', 1423 m alt., solitary in soil amongst leaves, in rainforest dominated by Castanopsis armata and Pinus kesiya, 16 October 2005, Huyen T. Le 382 (holotypus CMU; isotypes GENT, SFSU).

Typification

Holotypus: Huyen T. Le 382 (CMU)
Asia: Thailand: Chiang Mai Prov., Mae Taeng Dist., Tung Joaw village, N1908.07' E09838.09', 1423 m alt.

Description

Photographs

Microscopy

SEM photos