A monograph of Crinipellis and Chaetocalathus species growing in tropical Africa is in preparation. During studies of the original material and other specimens, some new taxa were recognized and are described in this paper: Chaetocalathus niduliformis var. bisporus, Crinipellis atrovinosa var. parvispora, C goossensiae, C. minutuloides, C kisanganensis, C. nsimalensis, and C. pseudopalmarum. Crinipellis mauritiensis is described as a nomen provisorum because of the absence of a macroscopic description and the presence of only very poor material. Type revisions of Chaetocalathus niduliformis and Lentinus minutulus caused some taxonomic and nomenclatural novelties that are published here. A new status is proposed for Crinipellis pseudostipitaria var. orientalis.

The types or authentic material of four members of Russula subsect. Maculatinae recognized by Romagnesi were studied: R. decipiens, R. decipiens var. vermiculata nom. inval., R. deceptiva and R. romagnesii. All studied specimens showed several similar micromorphological characters, particularly important one-celled pileocystidia, suggesting their close relationship. Based on the differences in spore ornamentation and terminal cells of hyphae in pileipellis near the cap margin, two morphotypes were recognized. The first one, represented by the neotypus of R. decipiens and authentic material of R. decipiens var. vermiculata nom. inval., has lower spore ornamentation with more numerous warts and apically constricted, terminal cells of hyphae in pileipellis as compared to the second morphotype represented by the holotypus of R. deceptiva and paratypus of R. romagnesii.

Lactifluus Lactifluus kigomaensis De Crop & Verbeken sp. nov. is described from primary miombo woodlands in the biologically underexplored Kigoma Province in North Western Tanzania. The species is consumed and offered for sale on local markets.

Vararia V. lanquetiniana and Vararia V. boidiniana (Basidiomycota, Russulales), two new species respectively collected in New-Caledonia (France, South Pacific) and Mayotte (France, Comoros archipelago, Indian Ocean), are described and illustrated in this paper. Both species form resupinate, pellicular and closely adnate, greyish to ochreargillaceous fruit bodies, and produce smooth, thin-walled, non-amyloid basidiospores, without a distinct amyloid suprahilar spot (in V. lanquetinae sometimes with a very subtle grayish patch). Both are in particular characterized by unusually small, racemose dichohyphidia, not dichotomically branching, but with very short, tortuous or finely botryophysoid terminal branches, very weakly dextrinoid, only partially so after AMA treatment. V. lanquetiniana is the second species of Vararia described from New-Caledonia, whereas Vararia V. boidiniana is the first representative of this genus on the Island of Mayotte.

During the re-examination of the Chinese Marasmius specimens of sect. Sicci preserved in the herbaria KUN and GDGM, four new species were discovered: Marasmius albostipitatus is characterized by an orange pileus, a white stipe, and the absence of pleurocystidia and caulocystidia; M. hygrocybiformis is recognized by an orange-red, plano-convex pileus, a grayish green hyaline stipe and medium large basidiospores; M. sparsifolius is characterized by an orange-white pileus, extremely distant lamellae not reaching the pileus margin; M. subabundans is similar to M. abundans in many respects, but has obviously smaller basidiospores and usually a paler pileus. In addition, M. coklatus, M. confertus var. parvisporus, M. hinnuleus and M. cf. occultatiformis are reported as new to China. All eight taxa are described and illustrated in detail according to the Chinese materials.

Podoserpula miranda sp. nov. (Amylocorticiales) is described from an old Arillastrum gummifera stand in New Caledonia.

Diversity of the level of morphological, pathogenic and genetic characteristics was studied in seven Plasmopara halstedii (sunflower downy mildew) isolates of seven races namely 100, 300, 304, 314, 710, 704 and 714. All analyses were carried out by using five single zoosporangium isolates per pathogen isolate. Morphological analyses were performed on zoosporangia for P. halstedii single zoosporangium isolates. Aggressiveness criteria were analysed in one sunflower inbred line showing a high level of quantitative resistance. Genetic relationships were detected between the single zoosporangium isolates using 12 EST-derived as SNPs markers. Based on the aggressiveness reaction for the P. halstedii single zoosporangium isolates, there were significant intra and inter-race differences for all criteria studied. Isolates of races 100 and 3xx were less virulent and more aggressiveness than isolates of races 7xx. There was no relation between morphology of zoosporangia and pathogenic characteristics for 35 single zoosporangium isolates. There was no intra-race genetic variation, but five genetically-identified groups were detected among pathogen isolates of all races. No correlation was detected between EST genotypes on the one hand and both pathogenic traits and morphological characteristics on the other.

DANIËLS P.P., RIBES MA. & CHRISTAN J. (2012). Notas en Gomphales V. Primeros registros de Ramaria cokeri R.H. Petersen, para macaronesia y África. Se han recolectado seis colecciones procedentes de las Islas Canarias y Guinea que se han identificado como Ramaria cokeri. Se trata un taxon de distribución pantropical pero esta es la primera aportación para el este del atlántico. Se aporta descripción macro, microscópica e iconografía de esta rara especie y se añaden comentarios sobre su corología y sobre las especies taxonómicamente afines. Se rechaza su inclusión reciente en el género Phaeoclavulina y se enumeran las especies de Ramaria referenciadas en la bibliografía para el archipiélago canario.