ClipArt ETC
"Spore-plant of a fern (Aspidium filix-mas). A, part of a rootstock and fronds; fr, young fronds unrollin. B, under side of a pinnule, showing sori, s. C, section through a sorus at right angles to surface of leaf, showing indusium, i, and sporangia, s. D, a sporangium discharging spores." -Bergen, 1896

Fern Spore Plant

"Spore-plant of a fern (Aspidium filix-mas). A, part of a rootstock and fronds; fr, young fronds unrollin.…