Ward, Frank Kingdon 
1944-1945. A sketch of the botany and geog- 
raphy of North Burma. Bombay Nat. Hist. 
Soc. Jour. 44: 550-574. 1944; 45: 16-30, 133— 
148. 1945. 
1949. Burma’s icy mountains. 
London: Jonathan Cape. 
287 pp., illus. 
1952a. 
illus. 
Plant hunter in Manipur. 
London: Jonathan Cape. 
254 pp., 
1952b. Plant hunting in Assam. Roy. Hort. 
Soc. Jour. 77: 205-214. 
1959. A sketch of the flora and vegetation of 
Mt. Victoria, Burma. Burmese Forester 9: 
65-79, illus. 
Ware, E. R. 
1936. Forests of South Dakota, their economic 
importance and possibilities. 28 pp., illus. 
U.S. Forest Serv. Lake States Forest Expt. 
Sta. 
Weber, William A. 
1961. Additions to the flora of Colorado. 
Colo. Univ. Studies, Biol. Ser. 7: 1-26, illus. 
Wiel Kae 
1963. [The status of the Anhwei five-needled 
pine in the light of an investigation of its 
wood anatomy.] Sci. Silvae, Peking, 8: 190— 
193, illus. (In Chinese.) Forest. Abstr. 25: 
1192. 
Wenger, Karl F. 
1958. Silvical characteristics of loblolly pine 
(Pinus taeda L.). U.S. Forest Serv. South- 
east. Forest Expt. Sta., Sta. Paper 98, 32 pp., 
illus. 
West, Erdman, and Arnold, Lillian E. 
1956. The native trees of Florida. Rev. ed. 
218 pp., illus. Gainesville: Univ. Fla. Press. 
White, J. H., and Hosie, R. C. 
1946. The forest trees of Ontario. Ed. 2, 
81 pp., illus. Ontario Dept. Lands and 
Forests. 
Whitford, H. N. 
1911. The forests of the Philippines. Part I. 
Forest types and products. Philippine Is. 
Bur. Forestry Bul. 10, 94 pp., illus. 
———_—_——— and Craig, Roland D. 
1918. Forests of British Columbia. 409 pp., 
illus. Ottawa: Com. Conserv. Canada. 
Wicht, C. L. 
1949. Tree seed hunting in Mexico. So. 
African Forestry Assoc. 
illus. 
Wiggins, Ira L. 
1940. Yellow pines and other conifers ob- 
served in Lower California. N. Y. Bot. 
Gard. Jour. 41: 267-269, illus. 
Jour. 18: 56-70, 
1944. Notes on the plants of northern Baja 
California. Stanford Univ., Dudley Herbari- 
um Contrib. 3: 289-305, illus. 
Williams, L. H. J. 
1953. The 1952 expedition to western Nepal. 
Roy. Hort. Soc. Jour. 78: 323-337, illus. 
Williams, Llewlyn. 
1939. Arboles y arbustos del Istmo de Te- 
huantepec, México. Lilloa 4: 137-171, illus. 
Williams, L[ouis O.] 
1955. Pinus caribaea. 
Willkomm, M. 
1861. Beitrage zur Forstbotanik. I. 
einer Monographie der  europdischen 
Krummholzkiefern. Jahrbuch der KO6nigl. 
sachs. Akademie fir Forst- und Landwirthe 
zu Tharand 14: 166-258. 
Wilson, Ernest Henry. 
Ceiba 4: 299-300. 
Versuch 
1907. A letter from China. Gard. Chron. 
Ser. 3, 41: 422. 
1913. A naturalist in western China. Ed. 2, 
vol. 1, 251 pp., illus.; vol. 2, 229 pp., illus. 
London: Methuen and Co., Ltd. 
1916. The conifers and taxads of Japan. 
Arnold Arboretum Pub. 8, 91 pp., illus. 
1920. The Liukiu islands and their ligneous 
vegetation. Arnold Arboretum Jour. 1: 
171-186. 
1926. The taxads and conifers of Yunnan. 
Arnold Arboretum Jour. 7: 37-68. 
Wolf, Carl B. 
1938. California plant notes. II. Rancho Santa 
Ana Bot. Gard. Occas. Paper, Ser. 1, No. 2: 
44-90), illus. 
Wooton, E. O., and Standley, Paul C. 
1915. Flora of New U.S. Natl. Mus. 
Contrib. U.S. Natl. Herbarium y. 19, 794 pp. 
Wu, Chung-lwen. 
1956. [The taxonomic revision and phyto- 
geographical study of Chinese pines.] Acta 
Phytotaxonom. Sinica 5: 131-164, illus. (In 
Chinese. English summary.) 
Mexico. 
1963. [Notes on Hwangshan pine of Hwang- 
shan, Anhwei Province.] Scientia Silvae 8: 
114-126, illus. (In Chinese. English sum- 
mary.) 
Yang, C. Y. 
1937. The forest vegetation of Shi-shan and 
Hsiao-wu-tai-shan. 
3: 97-118, illus. 
Zobel, Bruce. 
Chinese Bot. Soc. Bul. 
1951. The natural hybrid between Coulter 
and Jeffrey pines. Evolution 5: 405-413, 
illus. 
1953. Are there natural loblolly-shortleaf 
pine hybrids? Jour. Forestry 51: 494-495, 
illus. 
and Cech, Franklin. 
1957. Pines from Nuevo Leon, Mexico. 
Madrono 14: 133-144, illus. 
Zohary, M. 
1947. A vegetation map of western Palestine. 
Jour. Ecol. 34: 1-19, illus. 
1963. On the geobotanical structure of Iran. 
Israel Res. Council Bul. 11D (Bot.), Sup. 
113 pp., illus. 
Zon, Raphael, and Shantz, H. L. 
1924. Natural vegetation. In Atlas of Amer- 
ican agriculture. Part I, Sect. E, 29 pp., 
illus. U.S. Dept. Agr., Bur. Agr. Econ. 
