The pollen spectrum of honey of the Melipona fasciculata was analyzed aiming to elucidate the nectariferous resources used by this species. The identification of the visited plants was based upon the analysis of the pollen spectrum of 12 honey samples collected in one meliponarium located in Palmeirândia county, lowland area of Maranhão State, Brazil (02º40'47,6S, 44º52'39,8"W). The quantitative and qualitative analysis of honey samples was conducted in order to determine the pollen type percentages and frequency classes. Forty-five pollen types were found, being Pontederia parviflora Alexander (Pontederiaceae) the most frequent species during period of sampling (38.6%) and considered dominant pollen in October (86%), June (85%), July (76%), August (49%) and September (51%) and accessory pollen in December, January and March. Mimosa caesalpiniifolia Benth (Mimosaceae) was the second most frequent species (22.8%) and was a dominant pollen in November (46%), April (74%) and May (72%). Myrcia eximia DC. (Myrtaceae) was considered important isolated pollen. The most representative families found in the pollen spectrum of the honey samples were Pontederiaceae and Mimosaceae. 50% of honey samples was bifloral, but there were also monofloral (41.7%) and heterofloral (8.3%) honeys.
Brazil; Maranhão lowlands; Meliponina; Melissopalynology; Stingless bee
