. Characteristics and hybridization of important intermountain shrubs. Rosacea; Shrubs Rocky Mountains Region; Shrubs Great Basin. METHODS A survey of literature, particularly of pertinent keys and monographs, was con- ducted before hybridization experiments began. In addition, some observations of floral and vegetative characteristics were made during 1967 and later growing seasons. Collec- tions were made of shrubs in various stages of development for illustrative purposes. Artificial hybridization was tried between Cowania mexioana var. stanshuviana, Purshia tvidentata, Fallugia paradoxa, a
. Characteristics and hybridization of important intermountain shrubs. Rosacea; Shrubs Rocky Mountains Region; Shrubs Great Basin. METHODS A survey of literature, particularly of pertinent keys and monographs, was con- ducted before hybridization experiments began. In addition, some observations of floral and vegetative characteristics were made during 1967 and later growing seasons. Collec- tions were made of shrubs in various stages of development for illustrative purposes. Artificial hybridization was tried between Cowania mexioana var. stanshuviana, Purshia tvidentata, Fallugia paradoxa, and the Cowania-Purshia hybrid by treating emasculated flowers of each with pollen from the others (fig. 1). Flowers which were to receive pollen or to serve as controls were covered with white paper bags before anthesis (fig. 1). These artificial crosses were made to determine if there are any major diffi- culties in interspecific hybridization within and between these closely related Figure 1.—Cliffrose (Cowania mexicana var. stansburiana) with flowers emasculated, tagged, and pollinated with antelope hitterhrush (Purshia tridentata) and Apache plume (Fallugia paradoxa) pollen. 2. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Blauer, A. Clyde; United States. Forest Service. cn. Ogden, Utah : Intermountain Forest and Range Experiment Station, Forest Service, U. S. Dept. of Agriculture
Size: 1719px × 1454px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
