1914] Knowlton,— Ilex opaca and I. glabra 163 
July 4, 1899, A. & E. Nelson, no. 5663. COLORADO: moist ground near 
river, Fort Collins, May 15, 1894, Crandall, no. 22; Aboles, June, 1899, 
C. F. Baker, no. 328. New Mexico: near Espanola, May 17, 1897, 
Heller, no. 3544; Kingston, May 19, 1905, Metcalfe, no. 1601; Mangas 
Springs, June 11, 1903, Metcalfe, no. 128. Ipano: wet banks, Payette, 
Macbride, no. 869; loamy slopes, Boulder Creek, July 31, 1910, Mac- 
bride, no. 503; moist banks, New Plymouth, June 15, 1910, Macbride, 
no. 246. Uran: Wahsatch Mts., May, 1869, Watson, no. 20; Modena, 
June 2, 1902, Goodding, no. 1011; Salt Lake City, June, 1904, 4. 0. 
Garrett. NEVADA: Carson City, A. Gray; Soda Lake, August, 1867, 
Watson, no. 20. Arizona: river bottom, Boyles, Goodding, no. 516. 
CoaHuILa: Saltillo, May, 1898, Palmer, no. 178. San Luts Porost: 
region of San Luis Potosi, 1878, Parry & Palmer, no. 3. DURANGO: 
Durango, 1896, Palmer, no. 96. Mexico: near Mexico, May 15, 
1865-66, Bourgeau, no. 2. CaniroRNtiA: Bear Valley, San Bernardino 
Mts., June, 1886, Parish, no. 1788; Silver Canyon east of Laws, May 
9, 1906, Heller, no. S213. Orecon: near Mitchell, May 15, 1885, 
Howell, no. 322. WasHINGTON: near Sprague, Lincoln Co., June 3, 
1893, Sandberg & Leiberg, no. 135; Rattlesnake Mts., June 15, 1901, 
Cotton, no. 414. 
GRAY HERBARIUM. 
NEW ENGLAND DISTRIBUTION OF ILEX OPACA AND 
ILEX GLABRA. 
CLARENCE H. KNOWLTON. 
IN travelling over southeastern. Massachusetts by winter and 
summer, I have been much interested in the detailed distribution of 
the two evergreen Ilices, [lex opaca and I. glabra, which somehow seem 
quite exotic among our other New England plants. These two 
species, along with Chamaedaphne, the Kalmias, and the isolated 
Rhododendron maximum, are our only conspicuous broad-leaved ever- 
greens. 
According to Robinson's Flora of Essex County there were a few 
scattered trees of Ilex opaca on Cape Ann at Rockport, but these 
have been extinct since 1880, according to J. H. Sears, RHODORA x. 
43. "This is an isolated station, however, for the general range of the 
species is from Quincy, Holbrook, Hingham and Cohasset south to 
