The Ferns and Fern Allies of Pennsylvania Holstein Lydia Cacho and Maureen Freely

Lydia Cacho and Maureen Freely

friendships and stress

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500 years ago

The Ferns and Fern Allies of Pennsylvania Holstein Lydia Cacho and Maureen FreelyThree hundred million years ago, ferns dominated the earths surface, forming extensive marshes and forests with heights of over twenty five meters. Today, ferns and their allies are still abundantly represented in the plant world, with somewhere between 10,000 and 12,000 species identified and recognized. These nonflowering, nonseeding, highly vascular plants make up a major and ancient division in the plant kingdom called Pteridophytes. In the state