Vascular Bundles

Athyriaceae Vascular Bundles
Athyriaceae
Thelypteridaceae 		Aspleniaceae Vascular Bundles
Aspleniaceae 		Polypodiaceae Vascular Bundles
Polypodiaceae
Dryopteridaceae Vascular Bundles
Dryopteridaceae 		Dryopteridaceae Vascular Bundles, small fronds
Dryopteridaceae
small fronds 		Marattiaceae Vascular Bundles
Marattiaceae

Drawings by Anna Stone from Hawai`i's Ferns and Fern Allies, Daniel D. Palmer, 2003.