Report of the Geological Exploration of the Fortieth Parallel, Made by Order of the Secretary of War, Volume 5

6,000 feet altitude Acad achenia achenium acuminate acute anthers apex Arctic Arizona August base Bear River Benth bracts branched branchlets broad broadly California calyx calyx-lobes calyx-teeth campanulate Cañon capsule carpels Carson City cauline Colorado corolla corymb densely diameter dilated East Humboldt Mountains elongated entire equaling erect exceeding exserted feet elevation filaments filiform flowers foot-hills Frémont fruit glabrous Gray heads hirsute hispid involucre July lanceolate leaflets leafy leaves less linear lobes loosely many-flowered margins Mexico narrow narrowly nearly glabrous Nevada Nutt oblong obovate obtuse Oregon oval ovary ovate panicle pappus pedicels peduncles Perennial petals petiole Prodr puberulent pubescent racemes Rocky Mountains Ruby Valley Salt Lake Saskatchewan scabrous scales scape scarcely scarious seeds segments sepals sessile short shorter slender slightly solitary spatulate species specimens spikes spreading stamens stems stigmas stipules style Subarc subulate Texas Torr Truckee tube Uinta Mountains umbel upper usually Utah villous Wahsatch and Uintas Washington Territory