Born in Philadelphia in 1860, Mary Vaux was captivated by the wildflowers of North America and became well known for her watercolor illustrations of them. She married Charles Doolittle Walcott, then Secretary of the Smithsonian Institution, at around age 54. Eleven years later, the same institution published 400 of her wildflower illustrations in five volumes.

Perhaps less well known was another, much smaller volume of her watercolors, 1935's Illustrations of North American Pitcherplants, published by the Smithsonian as a folio with writing by Edgar T. Wherry and Frank Morton Jones.

Pitcherplants (or pitcher-plants or pitcher plants) are carnivorous plants found primarily in both Old World and New World tropics. The North American representatives of this curious family are restricted to a small genus of no more than a dozen plants called Sarracenia and a solitary member of the Californian genus Darlingtonia.

The following scans are approximately 2-3mb each, scanned full size at 300dpi.

You can also find a scan of the title page here.