(448) 
(444) 
(445) 
(446) 
(447) 
(448) 
(449) 
(450) 
(451) 
(452) 
(453) 
(454) 
(455) 
NATIVE WOODY PLANTS OF THE UNITED STATES 313 
Parmer, H. J. 
1921. FOREST FLORA OF THE OZARK REGION. Arnold Arboretum Jour. 2: 
216-232. 
1927. ON NUTTALL’S TRAIL THROUGH ARKANSAS. Jour. Arnold Arboretum 
8: 24-55. 
1929. THE LIGNEOUS FLORA OF THE DAVIS MOUNTAINS, TEXAS. Arnold Ar- 
boretum Jour. 10: 845. 
1937. NOTES ON NORTH AMERICAN TREES AND SHRUBS. Jour. Arnold Ar- 
boretum 18: 133-140. 
—— and STEYERMARK, J. A. 
1935. AN ANNOTATED CATALOGUE OF THE FLOWERING PLANTS OF MISSOURI. 
Mo. Bot. Gard. Ann. 22: 375-758, illus. 
PAMMEL, L. H. 
1915. NATIVE SHRUBS OF IOWA. Iowa State Hort. Soc. Trans. (1914) 
49: 34-48. 
, MacDonatp, G. B., and CLarxK, H. B 
1916. THE NATIVE AND CULTIVATED FOREST TREES AND SHRUBS OF THE MIS- 
SCURI RIVER BASIN. Iowa Acad. Sci. Proc. (1915) 22: 238-56, 
illus. 
PaTRAw, P. M. 
1936. CHECK-LIST OF PLANTS OF GRAND CANYON NATIONAL PARK. Revised 
by A. C. Hawbecker, Grand Canyon Nat. Hist. Assoc. Bull. 6, 
7S pp. 
PrarsE, C. K., and Wooi.ey, S. B. 
1986. THE INFLUENCE OF RANGE PLANT COVER ON THE RATE OF ABSORPTION 
OF SURFACE WATER BY SOILS. Jour. Forestry 34: 844-847. 
PELEETT, Hee: 
1913. FooD HABITS OF THE SKUNK. Iowa Acad. Sci. Proc. 20: 307-309. 
1930. AMERICAN HONEY PLANTS, TOGETHER WITH THOSE WHICH ARE OF 
SPECIAL VALUE TO THE BEEKEEPER AS SOURCES OF POLLEN. Ed. 3 
rev. and enl., 419 pp., illus. Hamilton, Il. 
Perry, G. BS. 
1932. THE COMMON TREES AND SHRUBS OF PENNSYLVANIA, NATIVE AND IN- 
TRODUCED. Pa. Dept. Forests and Waters Bull. 38, rev., 127 pp., 
illus. 
PETERSEN, N. F. 
1923. FLORA OF NEBRASKA; A LIST OF THE FERNS, CONIFERS, AND FLOWER- 
ING PLANTS OF THE STATE, WITH KEYS FOR THEIR DETERMINATION. 
Ed. 3, 220 pp. [Lincoln, Nebr.] 
Prprr, C. V. 
1906. FLORA OF THE STATE OF WASHINGTON. U. S. Natl. Mus. Contrib. 
U. S. Natl. Herbarium 11, 637 pp., illus. 
and BEATTIR£, R. K. 
1914. FLORA OF SOUTHEASTERN WASHINGTON AND ADJACENT IDAHO. 296 
pp., illus., Lancaster, Pa. 
and BEATTIE, R. K. 
1915, FLORA OF THE NORTHWEST COAST, INCLUDING THE AREA WEST OF THR 
SUMMIT OF THE CASCADE MOUNTAINS, FROM THE FORTY-NINTH PAR- 
ALLEL SOUTH TO THE CALAPOOIA MOUNTAINS ON THE SOUTH BORDER 
OF LANE COUNTY, OREGON. 418 pp. Lancaster, Pa. 
Pirrnigz, M. D. 
19385. MICHIGAN WATERFOWL MANAGEMENT. 828 pp., illus. Lansing, 
Mich. 
PLUMMER, F. G. 
1911. cHAPARRAL. U. S. Forest Serv. Bull. 85, 48 pp., illus. 
POLLARD, C. L. 
1908. CALYCANTHACEAE. North Amer. Flora 22: 237-238. 
Powers, W. H. 
1927. FLORA OF THE UPPER MISSOURI VALLEY. S. Dak. Acad. Sci. Proc. 
11: 85-100. 
