146 Proceedings of Indiana Academy of Science. 
Carya Buckleyi arkansana Sarg. 
Knox County, August 28, 1915. No. 18,232. In the Knox sand 
on the ridge just east of what was formerly a cypress swamp, at 
Vollmer, or about two miles north of Decker. 
Carya ovalis var. obcordata, forma,vestita Sarg. 
Knox County, October 5, 1917. No. 24,144. A very large tree in 
a low woods bordering Dan’s Pond, which is 14.3 miles southwest of 
Decker. 
Rynchospora corniculata (Lam.) Gray, var. interior Fernald. 
Harrison County, October 13, 1916. No. 22,407. In a swampy 
woods one and a quarter miles east of Palmyra. Associated with 
Carex louisianica, ete. 
Polygonum exsertum Small. 
Greene County, October 2, 1917. No. 24,082. In low ground at 
the edge of a field where it borders Horseshoe Pond, about three 
miles southeast of Lyons. Associated with Chamaesyce Preslii, Eupa- 
torium serotinum, Cyperus sp., ete. 
Calycocarpum Lyont (Pursh) Nutt. 
Posey County, October 13, 1917. No. 24,323. Wooded border of 
a slough about twelve miles southwest of Mount Vernon. Also noted 
as common on the wooded bank of the east side of the cypress swamp 
about thirteen miles southwest of Mount Vernon. Spencer County, 
June 8, 1918. No. 25,210. In anthesis at this time. A common vine 
in a slough about six miles southwest of Rockport, climbing trees 
and shrubs to a height of eight to twelve feet. Noted also in Perry 
County about eight miles southeast of Cannelton, but no specimen 
was preserved. 
Barbarea verna (Mill.) Aschers. 
Jefferson County, May 1, 1918. No. 24,582. Frequent along the 
roadside and rocky adjoining bluff of the Ohio River about two miles 
west of Madison. 
Crataegus arduennae Sargent. 
Allen County, May 31, 1915. No. 15,834. A large tree on the 
south bank of the St. Mary’s River just south of Fort Wayne. 
Crataegus conjuncta Sargent. 
Wells County, May 12, 1915. No. 15,625. On the border of a 
pond in a white oak woods on the south side of the lake in Jackson 
Township. 
Crataegus Dodgei Ashe. 
Lagrange County, May 17, 1915. No. 15,662. Roadside, about 
one mile northwest of Howe. Wells County, May 12, 1915. No. 
15,624. A tree ten feet high and one and a quarter inches in diam- 
