I just bought this fern Saturday at the SF Botanical Garden (Strybing Arboretum) sale. It gets big, and makes bulbils/plantlets along the center of the fronds. If anyone has any experience or info about this fern, I would be curious.

It may go by a couple other names. A different plant site's database shows the following synonyms: Callipteris prolifera, Asplenium proliferum, Athyrium proliferum, Diplazium accedens and Diplazium spinulosum

Here's the little one I bought for $5: