ULMACEAE (Elm family)

Celtis laevigata Willd. sugarberry [US; Illinois; Calhoun County; Brussels; T13S, R1W, S16; 435 feet][northern edge of field, northeast of Deer Plain Rd.-Hagen Rd. intersection, Two Rivers National Wildlife Refuge; September 1, 2000; Collected & identified by Chuck Walker; #IL73]

Celtis occidentalis L. common hackberry [US; Iowa; Fremont County; T68N, R42W, S32; 1,220 feet][at entrance to campgrounds (left side going in), Waubonsie State Park; August 13, 1999; Collected & identified by Chuck Walker; #IA98]

Celtis reticulata Torr. netleaf hackberry, palo blanco [US; Arizona; Yavapai County; Prescott; T15N, R3W, S?][Dossie Pit Rd., off south side of Iron Springs Rd. northwest of Prescott; May 18, 1996; Collected & identified by Chuck Walker; #AZ280]

Celtis tenuifolia Nutt. dwarf hackberry [US; Louisiana; Calcasieu Parish; Lake Charles; T10S, R8W, S19; 15 feet][behind Gayle Hall, McNeese State University; September 13, 1993; Collected & identified by Chuck Walker; #LA07]

Planera aquatica J.F. Gmel. planertree [US; Louisiana; Calcasieu Parish; Lake Charles; T10S, R8W, S7; 20 feet][in yard of home at 2103 Stanton St.; May 5, 1994; Collected & identified by Kershaw (original material from along the Sabine River, Calcasieu Parish); #LA80]

Ulmus alata Michx. winged elm [US; Illinois; Johnson County; T11S, R4E, S36; 580 feet][growing around edges of exposed sandstone formations, Fink Sandstone Glade, about two miles north-north-east of the Trigg Lookout; June 18, 2001; Collected & identified by Dr. Mark A. Basinger & Chuck Walker; #IL175]

Ulmus americana L. American elm [US; Illinois; Calhoun County; Brussels; T13S, R1W, S16; 430 feet][edge of woods, southwest of the Maintenance Yard, Two Rivers National Wildlife Refuge; July 23, 2000; Collected & identified by Chuck Walker; #IL40]

Ulmus americana L. var. floridana (Chapm.) Little Florida elm [US; Florida; Jackson County; Marianna; T5N, R10W, S27; 30 deg. 48.801'N, 85 deg. 13.556; 110 feet][30 m up trail from Champion Florida elm, upland hardwood forest, Florida Caverns State Park; November 17, 2008; Collected & identified by Chuck Walker; #FL106]

Ulmus crassifolia Nutt. cedar elm [US; Mississippi; Washington County; T19N, R7W, S26; 33 deg. 27.99'N, 90 deg. 53.74'W; 120 feet][along side of road in Delta Experimental Forest, about three miles north of Stoneville; September 24, 2005; Collected by Chuck Walker; Identified by Danny Skojac; #MS05]

Ulmus pumila L. Siberian elm [US; Arizona; Yavapai County; Prescott; T13N, R2W, S4; 5,400 feet][alleyway between the 500 blocks of S. Montezuma St. & Cortez St.; flowers collected: March 8, 1996; seed collected: April 7, 1996; leaves collected: April 13, 1996; Collected & identified by Chuck Walker; #AZ250]

Ulmus rubra Muhl. slippery elm [US; Iowa; Fremont County; T68N, R42W, S29; 1,200 feet][along east side of road leading to the Park office, Waubonsie State Park; June 22, 1999; Collected & identified by Chuck Walker; #IA27]

Ulmus thomasii Sarg. rock elm [US; Missouri; Ozark County; T24N, R11W, S15; 36 deg. 45.319'N, 92 deg. 9.173'W; 710 feet] [understory, with Liquidambar styraciflua, Liriodendron tulipifera, North Fork Campgrounds, 0.2 miles south of Road CC, Mark Twain National Forest, twenty miles west of West Plains; September 6, 2007; Collected & identified by Chuck Walker; #MO13]