Myxomycetes from sugar-cane plantation I - Floristic Survey. Occurrence, frequence and constancy of Myxomycetes has been investigated on a sugar-cane plantation of the Experimental Station PLANALSUCAR, in Carpina, Pernambuco. The observations were carried out in March, June, September and December corresponding to differents stages of sugar-cane culture. Within an area of 1134m²/40 individuals were sampred at each month of collection. Their leaves, stems and roots (alive or dead) as well as soil surface were all examined. Eight species were recorded, all belonging to the subclass Myxogastromycetidae: Cribraria splendens (Schr.) Pers. (Liceales); Arcyriacinerea (Bull.) Pers., A. denudata (L.) Wett, and Tricchia favoginea (Batsch.) Pers. (Trichiales); Craterium leucocephalum (Pers.) Ditmar, Physarum nucleatum Rex, P. nutans Pers. and. P. cf. pezizoideum (Jung.) Pav. & Lag. (Physarales). In this survey, the species most commonly encountered was C. leucocephalum(70,4%), Whilst the other species had a low occurence (7.4%-3.7%). None of the species was classified as constant on sugar-cane plantations: C. leucocephalum (Pers.) Ditman has been registered as accessory, and the remainder as fortuitous.
Myxomycetes; Sugar-cane; Liceales; Trichiales; Physarales