Heterosporous

heterosporous
Bearing spores of two sizes and sexes. See also: homosporous.
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heterosporous -- Producing two different sizes or kinds of spores. These may come from the same or different sporangia, and may produce similar or different gametophytes. Contrast with homosporous, and compare with heterosporangiate.

generation is larger and nutritionally independent and the gametophyte generation is microscopic in size and nutritionally dependent on the sporophyte. Flowering plants, like gymnosperms and certain other vascular plants, are heterosporous and ...

See also: Genera, Epiphyte, Spore, Plant, Produce