ROSACEA. 
Stamens 10. 
Anthers yellow. 
Leaves obovate to orbicular . ..... 
SILVA OF NORTH AMERICA. 30 
ee ew ew ele le lw) 68. APRICA. 
Fruit large, globose, zstival; nutlets 3-5, prominently ridged; corymbs few-flowered, gla- 
brous ; stamens 20; anthers purple. stivales. 
Leaves elliptical to oblong-cuneiform 
MicrocaRPz. 
. . . . . V4, STIVALIS, 
Fruit small, depressed-globose, scarlet ; nutlets 2 to 5, ridged or grooved on the back ; corymbs 
many-flowered, glabrous (villose in No. 77); stamens 20; anthers rose color or purple. 
Humicrocarpe. 
Leaves broadly ovate to triangular 
75. CORDATA.4 
Leaves spatulate to oblanceolate. . . . . . -s = = & : 76. SPATHULATA. 
Leaves orbicular to broadly ovate, pinnately 5-7- cleft soe ee ew ww we eh 6U0T. APITFOLIA. 
Leaves oval to ovate or nearly orbicular . . : 78. OPIMA. 
Fruit small (medium size in Nos. 83 and 84), globose; nutlets 3-5, slightly ery on ‘the 
back; corymbs few or many-flowered, glabrous; stamens 20; anthers pale yellow (No. 84 
doubtful). Virides. 
Leaves ovate to ovate-oblong or oblong-obovate 79. VIRIDIS. 
Leaves oval to ovate, acute . 80. VULSA. 
Leaves oblong-ovate to semiorbicular, subcoriaceous . . . . . . . . . . . 81. GLABRIUSCULA. 
Leaves ovalto rhombic. . . .. . 
Leaves lanceolate to oblanceolate, acuminate . 
Leaves ovate, acute . . . .. . 
1 Crategus Douglasii, iv. 86. The range of this species can now 
be extended to Clifton, near the shores of Lake Superior in Kewee- 
naw County, in the extreme northern part of the upper peninsula 
of Michigan, where it is common on hills and bluffs, and where it 
was found in July, 1894, by Mr. O. A. Farwell ; to Michipicoten 
Island in Lake Superior, where it was collected on July 24, 1869, 
by Mr. John Macoun (teste Herb. Gray); and to the shores of 
Thunder Bay, Michigan, where it was found in August, 1895, by 
Mr. C. F. Wheeler (teste Herb. Gray). 
According to Meehan Crategus Douglasti was discovered by 
Lewis and Clark on the Columbia River, April 29, 1806. (See 
Proc. Phil. Acad. 1898, 24 [The Plants of Lewis and Clark’s Expe- 
dition across the Country, 1804-1806].) 
Crategus Douglasii, var. rivularis. The range of this tree can be 
extended eastward of the central divide in Wyoming to Caspar on 
a small tributary of the Platte River, to Paris Creek near the 
northern boundary of the state, and to the eastern slope of the 
Big Horn Mountains (teste Professor Aven Nelson). 
82. BLANDA. 
- . . . . . 83. NITIDA. 
84. ATRORUBENS. 
? Crategus punctata, iv. 103. The range of this species can now 
be extended westward to eastern Minnesota, where it was found by 
Mr. E. P. Sheldon at Lakeville, Dakota County, in May, 1894, and 
near Cedar Lake, Hennepin County, in May, 1895. It probably 
does not cross the Mississippi River. 
3 Crategus tomentosa, iv. 101. The range of this species can be 
extended to southeastern Kansas. (See Hitchcock, The Industrial- 
ist, xxiv. 383 [Flora of Kansas ].) 
4 Crategus cordata,iv.107. The range of this species can be 
extended to beyond the Mississippi River. It is common in south- 
eastern Missouri, where it was found on Birch Tree Creek in Shan- 
non County by Mr. B. F. Bush in 1893, and by Professor Trelease 
in 1897 between Bismarck and Iron Mountain in Iron County, 
and at Williamsville, Wayne County. It has been found by Mr. 
J. B. S. Norton at Osage, Missouri, on the Missouri River, and 
in northwestern Arkansas near Fayetteville by Professor F. L. 
Harvey. 
