=Quercus alba × Muhlenbérgii= (× _Quercus Deami_ Trelease). This rare hybrid was discovered in a woods about 3 miles northwest of Bluffton Indiana by L. A. Williamson and his son E. B. Williamson in 1904.[33] The tree is still standing and in 1918 bore a heavy crop of seed. A liberal quantity was sent for propagation to the Arnold Arboretum, New York Botanical Gardens, and Missouri Botanical Gardens. The Arboretum succeeded in germinating several seed. The New York Gardens succeeded in getting 5 seedlings. The Missouri Gardens failed to get any to germinate. About a gallon of seeds was planted in the Clark County State forest nursery and all failed. =2.= =Quercus bícolor Willdenow.= Swamp White Oak. Plate 41. Large trees; leaves on petioles 5-20 mm. long, 8-18 cm. long, obovate, wedge-shaped or narrowly rounded at base, rounded or pointed at the apex, margins coarsely divided with rounded or blunt teeth or somewhat pinnatifid, primary venation beneath somewhat regular, but usually some of the veins end in a sinus of the margin, both surfaces hairy at first, becoming smooth above and remaining velvety pubescent beneath; the upper surface of the leaf a bronze or dark green and the under surface grayish due to the dense tomentum, which in some instances becomes sparse and short, in which case the under surface is a light green; acorns usually in pairs on stalks 2-7 cm. long; nuts ovoid, 2-2.5 cm. long, enclosed for 1/3-1/2 their length in the cup; scales of cup acute to very long acuminate, scurvy pubescent and frequently tuberculate; kernel sweetish. =Distribution.=--Maine, southern Ontario, southern Minnesota south to Georgia and Arkansas. Found in all parts of Indiana. It is always found in wet places. In most of its range it is associated with the bur oak from which it is not commonly separated. In the northern counties it is usually associated with pin and bur oak, and white elm; in the flats of the southeastern part of the State it is usually associated with cow oak and sweet gum, while in the southwestern counties it is found most commonly with Spanish and pin oak. =Remarks.=--Commercially the wood is not distinguished from white oak, and the cut is sold for that species.