. Brigham Young University science bulletin. Biology -- Periodicals. Representative Specimens; Beaver Co., Frisco, Jones 1822, June 25, 1880 (US); Cache Co., Logan Canyon, Holmgren 3565, July 15, 1944 (NY); Duchesne Co., Moon Lake, EH. Graham 9387 & 9389. June 25, 1935 (CM); Garfield Co., Bryce Canyon Nat'l. Park, H. Buchanan 201, July 15, 1957 (UT); Garfield Co., Henry Mts., R. McVaugh 14685, June 10-20, 1953 (NY); Grand (io., Abajo Mts., A:.5. Erdman 270, July 29, 1960 (BRY); San Juan Co., south of Moab, Holmgren & S. Hansen 3323, June 15, 1944 (UTC); San Pete Co., E


. Brigham Young University science bulletin. Biology -- Periodicals. Representative Specimens; Beaver Co., Frisco, Jones 1822, June 25, 1880 (US); Cache Co., Logan Canyon, Holmgren 3565, July 15, 1944 (NY); Duchesne Co., Moon Lake, EH. Graham 9387 & 9389. June 25, 1935 (CM); Garfield Co., Bryce Canyon Nat'l. Park, H. Buchanan 201, July 15, 1957 (UT); Garfield Co., Henry Mts., R. McVaugh 14685, June 10-20, 1953 (NY); Grand (io., Abajo Mts., A:.5. Erdman 270, July 29, 1960 (BRY); San Juan Co., south of Moab, Holmgren & S. Hansen 3323, June 15, 1944 (UTC); San Pete Co., Ephraim Creek, AH. Holmgren & R. Shaw 7682, June 13, 1948 (NY); Sevier Co., Sahna Canyon, Jones 5441m. June 15, 1894 (US): Tooele Sheep- rock Christensen , July 28, 1963 (BRY); Uintah Co., Roan Plateau (east), Vickerv 1738, July 13-15, 1956 (UT); Utah Provo Canyon, SL. Welsh & G. Moore 6362, July 16, 1967 (BRY); Washington Co., Silver Reef, ME. Jones 5163L. May 4, 1894 (US). UTAH OUTLINE MW. Fig. 24. Cercocarpus montanus Raf. Fig. 25. Chilopsis linearis (Cav.) Sweet Chilopsis linearis (Cav.) Sweet (Fig. 25) The desert willow has elongated graceful leaves and showy flowers and is one of the loveliest trees of southern Utah. It is found only in Washington County where it grows along streams or on moist hill- sides. However, it has been grown as an ornamental tree in Utah as far north as Ogden, where I observed it tlourishing in an experimental garden. Representative Specimens; Washington Co., Beaver Dam Wash, Erdman 72, May 11, 1960 (BRY); Washington Co., Santa Clara, Cottam 1182, August 28, 1927 (BRY). Crataegus hvularis Nutt. (Fig. 26) Utah's common hawthorne is generally restricted to streamsides primarily of the Wasatch and Uinta Mountains. It is common in the central plateau section of the state as far south as Piute County. There are a few scattered records elsewhere but it appears to be absent almost entirely from the basin. P


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