Conidial fungi associated to leaf litter of Clusia melchiorii Gleason and C. nemorosa G. Mey (Clusiaceae) in a fragment of Atlantic rainforest, Bahia State, Brazil

(Conidial fungi associated to leaf litter of Clusia melchiorii Gleason and C. nemorosa G. Mey (Clusiaceae) in a fragment of Atlantic rainforest, Bahia State, Brazil). In order to increase the diversity knowledge of conidial fungi, 10 dead leaves from three individuals of C. nemorosa and C. melchiorii were bimonthly collected at the Serra da Jiboia, State of Bahia, from October/2005 to June/2006. The leaves were washed with tap water and maintained in moist chamber during 30 days. The fungal structures were collected for morphological studies. Seventy nine taxa of Ascomycota, in the anamorphic state were registered: 78 hyphomycete and one Coelomycete. Most of the species occurred on Clusia melchiorii (87%) and 55% on C. nemorosa. The majority of the fungi presented sporadical frequency and accidental constancy. The most frequent species were: Beltrania rhombica Penz., Chaetopsina fulva Rambelli, Dactylaria ficusicola Paulus, Gadek & Hyde, Verticillium theobromae (Turconi) Mason & Hughes e Volutella sp. 1 (on C. melchiorii) and Atroseptaphiale flagelliformis Matsush., Pseudobeltrania sp., Zygosporium gibbum (Sacc., Rousseau & Bommer) Hughes, Verticillium theobromae (Turconi) Mason & Hughes and Volutella sp. 1 (on C. nemorosa). The similarity of fungi between the two species of Clusia reached 60% and 11 taxa were constant in both hosts: Atrosetaphiale flagelliformis, Beltraniella portoricensis (Stevens) Piroz. & Patil, Chalara alabamensisJones & Ingram., Cryptophiale kakombensis Piroz., Parasympodiella laxa (Subram. & Vittal), Speiropsis scopiformis Kuthub. & Nawawi, Thozetella cristata Piroz. & Hodges, Umbellidion radulans Sutton & Hodges, Verticillium theobromae, Volutella sp. 2 and Zygosporium gibbum. The data show that the litter produced by C. melchiorii and C. nemorosa, at the Serra da Jiboia, is rich in conidial fungi. These fungi, as decomposers, are important for the dinamic of the studied ecosystem.