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Nomenclature

Lactifluus roseolus (Verbeken) Verbeken
Mycotaxon 118: 449. 2011.

Lactarius roseolus Verbeken
Bull. Jard. Bot. Natl. Belg. 65: 207. 1996.

Original diagnosis

Pileus (0.5)1-2.5 cm diam., tenellus, planoconvexus ad applanatus, leviter infundibuliformis; margine regulari, striatulo; pileipellis laevis ad leviter velutina, pallide aurantia ad rosea, marginem versus albida. Stipes 1-3 cm longus, 0.3-0.6 cm crassus, cylindratus, laevis, interdum squamulosus, roseus ad griseo-ruber. Lamellae adnatae ad decurrentes, distantes, 1-2 mm latae, albidae ad cremeae. Contextus fragilis, albus, gustu mitis. Latex moderate abundans, albus, gustu mitis. Sporae albae in cumulo, subglobosae ad ellipsoideae, 7.6-8.5-9.4 x 6.8-7.5-8.1 µ, verrucis sublaevibus, irregularis, demississimis, interdum connexis vel plus minusve in cristis brevibus confluentibus ornatae; macula suprahilaris non amyloidea. Basidia 50-70 x 7-10 µm, cylindrata vel subcylindrata, longa, gracilia, tetraspora. Macropleurocystidia absentia. Pseudopleurocystidia rara, 3-5 µm diam., cylidrata ad tortuosa, interdum ramosa. Pileipellis subcellulata, hymeniformis; elementa suprapellis 20-60 x 5-10 µm, cylindrata vel subfusiformia, interdum septata, pariete tenui; subpellis pseudoparenchymata.
Holotypus: Verbeken 94.274 (BR, isotypus GENT), Burundi, Bururi Prov., Nyamirambo, Rumonge Forest Reserve, 850-950 m alt., miombo woodland dominated by Brachystegia utilis, iii 1994.

Typification

Holotypus: A. Verbeken 94.274 (BR)
Africa: Burundi: Rumonge Forest Reserve, Nyamirambo hill
miombo woodland

Published type studies: Verbeken et al., Syst. Geogr. Pl. 70: 203 (2000).

Description

Photographs

Microscopy

SEM photos