1912] Wiegand,— Amelanchier in eastern North America 147 
Culvers Gap, summit of west side, July, 1907, S. S. Van Pelt; High 
Point, 1891, N. L. Britton; high rocky hill, High Point, July, 1909, 
K. K. Mackenzie, no. 4201: Passaic Co. rocky headlands, Charlotte- 
burg, May, 1908, K. K. Mackenzie: Bergen Co. Palisades, 1890, 
Bicknell: Union Co. (?), Great Island near Elizabethport, July, 1890 
(not typical): Monmouth Co. margin of woods, July, 1910, S. 
Brown & B. Long, no. 168. | PENNSYLVANIA: — Luzerne Co. L. V. 
R. R. between Moosehead and Bear Creek Junct., July, 1901, S. 
Brown: Monroe Co. base of Pocono Knob, July, 1896, J. Crawford; 
near Tannersville, July, 1901, S. Brown: Northampton Co. on the 
Delaware River above Easton, May, 1897, T. C. Porter: Bucks Co. 
Naseville, May 1897, 4. Jahn: Chester Co. Phoenixville, July, 1863, 
I. C. Martindale. Marytanp:— Montgomery Co. rocks, Great 
Falls of the Potomac, 1895, F. V. Coville, no. 166, Pollard, no. 166; 
May, 1899 E. S. Steele. | VrRGINIA: — Princess Co. near Virginia 
Beach, 1898, Coville & Kearney, no. 51 (not typical): Nansemond 
Co. near Suffolk, 1898, Kearney (not typical). Norra CaRoLINA: — 
Buncombe Co. banks of French Broad River, June, 1898, Biltmore 
Herbarium, no. 6706 (not typical). Micutgan: — Alpena Co. on 
sterile “plains” near Alpena, July, 1895, C. F. Wheeler. 
5. A. oBLONGIFOLIA (T. & G.) Roemer. 
Mespilus canadensis a obovalis Michx., Fl. Bor. Am. p. 291 (1803) 
(?); Sarg., Silva, iv. p. 128 (1892), in part. M. arborea Michx., Hist. 
Arb. Am. Sept. iii. p. 68 (1810), in small part. Pyrus ovalis Bigel., 
Fl. Bost. ed. 2, p. 195 (1824); Pursh, Fl. Am. Sept. p. 340 (1814): 
not P. ovalis Willd., Berl. Baumz. p. 259 (1796); nor A. ovalis Medic. 
Gesch. p. 79 (1793): nor A. ovalis Borkh, Forstb. ii. p. 1259 (1803). 
Aronia ovalis Torr., Fl. N. U.S. p. 479 (1824). Am. canadensis 8 
oblongifolia T. & G., Fl. N. A. i. p. 473 (1840); Torr., Fl. N. Y. p. 225 
(1843); Gray, Man. ed. 1, p. 130 (1848); ed. 2, in part; ed. 6, in part. 
A. oblongifolia Roem., Fam. Nat. Syst. Rosifl. p. 147 (1847); Robinson 
& Fernald, Gray's Man. ed. 7, p. 460 (1908), in part; 4. Botryapium 
Brit. & Brown, Ill. Flora ii. p. 238 (1897), in part; Brit., Man. p. 517 
(1901), in part. A. obovalis Ashe, Bot. Gaz. xxxv. p. 434 (1903); 
Sarg., Trees N. A. p. 361 (1905), in part. A. intermedia Blanchard, 
Torreya, vii. p. 98 (1907), in part; Brit., N. A. Trees, p. 438 (1908), 
in part; not A. intermedia Spach, Hist. Veg. Phan., ii. p. 85 (1834). 
Shrub with the slender upright stems growing in rather dense 
fastigiate clumps (cespitose, alder-like), 2-8 m. high, not stoloni- 
ferous: leaves oblong elliptic-oblong or narrowly obovate-oblong 
(average blades 3-5.5 em. X 1.8-2.8 em.); apex rounded or barely 
acute, mucronate or cuspidate; base rounded, rarely subcordate with 
a minute sinus, rarely subacute; margin very finely serrate with low 
sharp teeth nearly or quite to the base (6-11, av. 8-9, teeth per cm., 
