Leaves – simple, deciduous, alternate, about 5″, coarsely doubly serrate, usually scabrous above, and often pubescent below with an inequilateral base. Twigs – slender and zigzag. Buds – 1/4″, acute, ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Once a fixture of eastern US cities, ...

It’s a sunny September day in Castine, Maine, and I’m standing in a stranger’s yard debating how best to hug a tree. Not just any tree, but an American elm, a fully mature Ulmus americana. This tree, ...

A century ago, the streets and parklands of America were lined with stately elm trees. Elms are loved for their graceful shape, with branches like spreading fountains and their green leaves that turn ...

This is a preview. Log in through your library . Abstract The fine structure of dividing cambial cells of Ulmus americana and Tilia americana has been studied in material fixed in glutaraldehyde ...

This American elm cultivar has strong resistance to Dutch elm disease, but is mainly only planted in Washington, DC. Introduced in 2005, it was reportedly cloned from an elm right here on the National ...