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Fig. 1 | BMC Evolutionary Biology

Fig. 1

From: Convergent evolution of highly reduced fruiting bodies in Pezizomycotina suggests key adaptations to the bee habitat

Fig. 1

a. The solitary bee Chelostoma florisomne entering its nest — a Phragmites reed of a thatched roof. b. The solitary bee Osmia bicornis entering a commercial solitary bee nest made of cardboard tubes. c. A Phragmites reed peeled open to reveal the linear arrangement of brood cells built by C. florisomne, each containing pollen provisions and an egg. d. Opened man-made nest showing cocoons of Osmia bicornis (top row) and the leafcutting bee Megachile centucularis (bottom two rows). e. brood cell of Osmia leaiana containing a coccon and larval fecal pellets (orange cylinders) with Ascosphaera sporecysts. f. Close–up of larval fecal pellets from Fig. 1 e and intact spore cysts (arrow). Scale bars: E = 20 mm, F = 500 μm

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