Introduction | Taxa DB | Literature | Identification | Techniques | People

Nomenclature

Russula brunneorigida Buyck
Bull. Jard. Bot. Natl. Belg. 58 (3-4): 471. 1988.

Original diagnosis

Pileus 25-90 mm diam., primum globosus, in apice planus, mox, late depressus; margo longe ac profunde striatus, acutus; pileipellis granuloso-floccosa, aurantio-brunnea ad saturate brunnea, primum continua, dein marginem versus fissurans et carnem pallide ochraceam exposans. Stipes 35-100 x 4-10 mm, gracilis, cylindratus, paulatim ex apice ad basim attenuatus, rectus vel inferne curvatus, subtile tomentosus, saturate brunneus ad atrobrunneus, interdum pallidior in apice. Lamellae adnatae, moderate confertae, 3-14 mm latae, angustae; acies saturate brunnea in statu juveni, dein pallida sed versus pilei marginem punctis brunneis praedita; lamellulae rarissimae vel nullae. Caro pallida, fortiter brunnescens sub stipitipelle; sapor mitis vel dilute nauseosa; odor indistincta vel leviter ingrata. Sporae in cumulo colore ignoto, probabiliter pallidae.
Sporae breviter ellipsoideae, 9,68 x 8,07 µm (Q = 1,19), elementis conicis acutis sejunctis, valde amyloideis, usque ad 1,5-2 µm altis dense ornatae; macula suprahilaris inamyloidea, interdum dilute amyloidea. Basidia 35-50 x 11-16 µm, subclavata vel piriformia, tetraspora; sterigmata fortia, 8-12 x 2-3 µm. Cystidia numerosa, 50-75 (-85) x 9-13 (-15) µm, inferiora ad marginem, fusiformia, subcylindrata, clavulata, mucronata vel obtusa in apice, intus contentu fibrillosa repleta. Pili cystidiformes nulli. Pileipellis omnino orthochromatica in azureo cresylico, ex hyphis cylindratis, 4-6 µm latis, confertis composita; suprapellis pili moderate voluminosi, pariete subtillisime incrustata instructi, intus pigmento brunneo repleti, cellulis subcilindratis, sinuosis, allantoideis efformati; cellula terminalis 5-7 (-10) µm lata, obtusa; pileocystidia nulla.
Zaire: Forestier Central: 5 km NNE de Batiabongena, près de Kisangani, sur le sol d’un restant de la forêt équatoriale a Gilbertiodendron dewevrei, mai 1984, Buyck 1651 (BR holotypus).

Typification

Holotypus: Buyck 1651 (BR)
Africa: Democratic Republic of the Congo: Forestier central: 5 km NNE de Batiabongena, près de Kisangani
Groupés sur le sol de la forêt primaire

Description

Photographs

Microscopy

SEM photos