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| male reproductive structure which produces gametes in ferns, mosses, fungi and algae |
| organism capable of self-nourishment which uses photosynthesis or chemosynthesis for energy |
| pollen sac
The microsporangium of a seed plant in which pollen is produced. The pollen sacs of angiosperms are located in the anthers, while those of conifers are located in the male cones. |