New species and new records of Clavariaceae (Agaricales) from Brazil

Giovanni Casaretto: a short biography and his botanical collections in Brazil and Uruguay

Lychnophora spiciformis (Asteraceae: Vernonieae), a new species from Bahia, Brazil

Poaceascoma aquaticum sp. nov. (Lentitheciaceae), a new species from submerged bamboo in freshwater

Calydorea minuana, a new species of Iridaceae from Río de La Plata Grasslands, South America

Kemulariella tahirelcii (Asteraceae; Astereae), a new species from Şırnak, Turkey