Other images:

• Leaf close-up 
• Tree trunk of a Castanea dentata killed by the chestnut blight ascomycete, Cryphonectria parasitica (Murrill) M. Barr (old name Endothia parasitica Murrill). During the first quarter of the 20^th century, a massive die-out of Castanea dentata populations was caused in North America by this ascomycete. 

Voucher: Kostadinov 135, (URV)

Brief description: A medium-sized to large, monoecious tree. Leaves are ovate to oblong-lanceolate, simple, alternate, entire, pinnately veined, glabrous, margins coarsely and sharply serrate. Flowers are unisexual, the staminate occurring in slender, elongate axillary catkins, the pistillate catkins -- on the base of the staminate ones or on separate axils. Fruits are a nut which is flattened on one or two sides; the involucre is accrescent, long-spined;  the nuts usually come in 2 or 3 together. 

Campus data: Very rare on campus; a couple of young root sprouts were encountered in the undergrowth of Westhampton forest.