1921] St. John,— Critical Revision of Hydrangea arborescens 207 



District of Columbia: in silvis frequens prope Washington, July 

 15, 1888, Th. Holm (Cal). West Virginia: Banks of Blackwater 

 River, Hendricks, Tucker Co., J. M. Grcenman, no. 213 (G). North 

 Carolina: Blowing Rock, August 9, 1893, B. L. Robinson, no. 134 

 (G). Georgia: ravines, Madison Springs, September, //. W. 

 R[avenel\ (G). Indiana: rocky wooded ravine just west of Aurora, 

 C. C. Deam, no. 6,,842 (D). Kentucky: Big Black Mountains, 

 Harlan Co., T. II. Kearney, Jr., no. 154 (G). Tennessee: bluffs 

 along Tennessee River, Knoxville, A. Ruth, no. 336 (G). Alabama: 

 riverbank, Montgomery, June 1, 1897, C. F. Baker (N). Illinois: 

 shady rocks, St. Clair Co., June 29, 1877, //. Eggert (G). Missouri: 

 along bluffs, Noel, B. F. Bush, no. 4,987 (G). Oklahoma: in ravine, 

 north side Rich Mt., near Page, Leflore Co., G. W. Stevens, no. 2,74!) 

 (G). 



2. H. arborescens L., f. grandiflora Rehder, Mitt. Deutsche 

 Dendrolog. Gesell. 71 (1907). 



Distribution: Found wild in Ohio and introduced into cultiva- 

 tion. Ohio: specimen from this source cultivated at the Arnold 

 Arboretum, June, 1907, Alfred Rehder (G). Tennessee,: Nash- 

 ville, Wilkinson (G). 



3. H. arborescens L., var. oblonga T. & G., Fl. N. Am. i. 591 

 (1838-1840); II. cinerea Small, Bull. Torrey Bot. Club xxv. 14S 

 (1898), in part; //. arborescens L., f. oblonga (T. & G.) Schneider, 

 111. Handb. d. Laubholzk. i. 387 (1905). 



Distribution: New York: near Painted Post, Steuben Co., 

 July 24, 1884, Miss I. S. Arnold (G). New Jersey: rocky woods, 

 Phillipsburg, August 15, 1909, A'. K. Mackenzie, no. 4,281 (D). 

 Pennsylvania: near Smithville, Lancaster Co., Heller & Halbach, 

 no. 541 ((J). District of Columbia: Herb. A. Gray (Type G). 

 West Virginia: rocky woods, White Sulphur Springs, Greenbrier 

 Co., K. K. Mackenzie, no. 412 (D). Virginia: on Round Top 

 Mountain, west of Seven Mile Ford, Smyth Co., July 2, 1S92, ./. K. 

 Small (G). North Carolina: rich shady woods, Biltmore, June 

 21, & September 28, 1897, Biltmore Herbarium, no. 1,339 b (G). 

 Georgia: rich shady woods, Athens, June 25, 1900, R. M. Harper, 

 no. 35 (G. & N.). Indiana: on a wooded hillside about three miles 

 west of New Albany, Floyd Co., C. C. Deam, no. 9,374 (D). Ala- 

 bama: Greensboro, 1857, 8. Watson (G). Kentucky: Kuttawa, 

 Lyon Co., June 2-18, 1909, II'. II*. lu/gleston, no. 4,756 (N). Tenn- 

 esskk: rich woods, Knoxville, A. Ruth, no. 2,025 (N). Alabama: 

 Auburn, Lee Co., August 2, 1897, Earle & Baker (N). Mississippi: 

 Waynesboro, Wayne Co., C. L. Pollard, no. 1,244 (G). Illinois: 

 rocky banks, Athens, Menard Co., 18(51, K. Hall ((J). Missouri: 

 Meramec Heights, K. E. Sherff, no. 09 (G). Arkansas: ' Benton 



