MANUAL OF THE GRASSES OF THE UNITED STATES 



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and amateur botanist, Brownsville, Tex. 

 Digitaria runyoni. 



St. Hilaire, Auguste de (1779-1853). 

 French botanist who traveled in Brazil and 

 Paraguav for 6 years, 1816-22. Hilaria. 



Saunders, William (1822-1900). Scotch- 

 born horticulturist, first botanist and 

 Superintendent of Horticulture, U. S. 

 Department of Agriculture, instrumental in 

 introduction of Bahia orange into California. 

 Agropyron saundersii. 



Scheele, Adolf (1808-64). German botan- 

 ist, who described grasses from Texas. 

 Setaria scheelei. 



Schreber, Johann Christian Daniel (von) 

 (1739-1810). German botanist, professor in 

 Erlangen, who wrote on grasses. Muhlen- 

 bergia schreberi. 



Scribner, Frank Lamsori (1851-1938). 

 Agrostologist, U. S. Department of Agricul- 

 ture. Scribneria; Agropyron scribneri; Cala- 

 magrostis scribneri; Panicum scribnerianum ; 

 Stipa scribneri. 



Sello (or Sellow), Friedrich (1789-1831). 

 German botanist, who went to Brazil in 1814 

 and collected from Bahia on the north to 

 Uruguay on the south. Cortaderia selloana. 



Siegling, — (fl. ca. 1800). Professor of 

 botany at Erfurt, Germany, associate of 

 Johann Jakob Bernhardi. Sieglingia. 



Silveus, William Arents (1875- ). Agros- 

 tologist of San Antonio, Tex.; author of 

 works on Texas grasses. Eragrostis silveana; 

 Sporobolus silveanus. 



Simpson, Joseph Herman (1841-1918). 

 Resident naturalist of Florida. Digitaria 

 simpsoni; Eriochloa michauxii var. simpsoni. 



Smith, Charles Eastwick (1820-1900). 

 Engineer, onetime railroad president, ama- 

 teur botanist. Melica smithii. 



Smith, Jared Gage (1866- ). Onetime 

 botanist, U. S. Department of Agriculture, 

 later resident of Hawaii. Agropyron smithii. 



Stapf, Otto (1857-1933). Botanist, Royal 

 Botanic Gardens, Kew, England. Neostapfia. 



Stillman, Jacob Davis Babcock (1819-88). 

 Practicing physician of California, onetime 

 coeditor of California Medical Gazette, 

 amateur botanist. Stipa stillmanii. 



Suksdorf, Wilhelm Nikolaus (1850-1932). 

 Born in Dransau, Holstein, longtime resident 

 of Bingen, Wash., pioneer collector in 

 Klickitat County region. Bromus suksdorfii. 



Swallen, Jason Richard (1903- ). 

 Agrostologist, U. S. Department of Agricul- 

 ture; Curator, Division of Grasses, U. S. 

 National Museum. Eragrostis stvalleni; 

 Hilaria swalleni. 



Tharp, Benjamin Carroll (1885- ). 

 Professor of botany, University of Texas. 

 Sporobolus tharpii. 



Thurber, George (1821-90). New York 

 botanist, agricultural editor, who wrote on 

 grasses of California. Agrostis thurberiana; 

 Festuca thurber i; Muhlenbergia thurberi; 

 Stipa thurberiana. 



Thurow, Friedrich Wilhelm (1852-1930). 



German amateur botanist who came to 

 Texas in 1876 and collaborated with Vasey 

 in his study of Texas grasses. Panicum, 

 thurowii. 



Torrey, John (1796-1873). American 

 botanist of distinction and physician of New 

 York City. Melica torrey ana; Muhlenbergia 

 torrey ana; Muhlenbergia torreyi. 



Tracy, Joseph Prince (1879- ). Busi- 

 ness accountant of Eureka, Calif., amateur 

 botanist and collector. Festuca tracyi. 



Tracy, Samuel Mills (1847-1920). Agron- 

 omist and botanical collector of Biloxi, 

 Miss., who collected in the Southern and 

 Western States. Andropogon tracyi; Era- 

 grostis tracyi; Poa tracyi. 



Trinius, Karl Bernhard (1778-1844). 

 Agrostologist of St. Petersburg, Russia, 

 author of important works on grasses. 

 Bromus trinii. 



Tuckerman, Edward (1817-86). American 

 lichenologist, professor of botany, Amherst 

 College. Panicum tuckermani. 



Tweedy, Frank (1854-1937). Topographic 

 engineer, U. S. Geological Survey, who col- 

 lected in Yellowstone Park and the Pacific 

 Northwest. Bromus pumpellianus var. 

 tweedyi; Calamagrostis tiveedyi. 



Urville. See Dumont-d'Urville. 



Vasey, George (1822-93). Eminent Ameri- 

 can agrostologist; botanist, U. S. Depart- 

 ment of Agriculture. Vaseyochloa; Poa 

 vaseyochloa. 



Walter, Thomas (1740-89). South Caro- 

 lina planter, pioneer botanist, author of 

 Flora Caroliniana. Echinochloa walteri. 



Webber, David Gould (1809- ). Physi- 

 cian, miner, miller, who went to California 

 in 1849, onetime owner of Webber Lake, and 

 friend of J. G. Lemmon. Oryzopsis webberi. 



Webber, Herbert John (1865-1946). Bot- 

 anist, U. S. Department of Agriculture, who 

 early collected in Nebraska and Florida, was 

 later devoted to citrus studies. Panicum 

 webberianum. 



Werner, William C. (1851-1935). Ohio 

 florist and botanical collector. Panicum 

 werneri 



Wilcox, Timothy Erastus (1840-1932). 

 Surgeon, U. S. Army, "born naturalist," 

 who collected in the Western States. 

 Panicum ivilcoxianum. 



Williams, Thomas Albert (1865-1900). 

 Agrostologist, U. S. Department of Agri- 

 culture. Stipa williamsii. 



Willkomm, Heinrich Moritz (1821-95). 

 German botanist, professor of botany and 

 Director of gardens in Dorpat. Willkommia. 



Wolf, John (1820-97). Botanist of Canton, 

 111., who collected in Illinois and Colorado. 

 Poa wolfii; Trisetum wolfii. 



Wright, Charles (1811-85). Botanical 

 explorer in Texas and New Mexico, with 

 Mexican Boundary Survey, and later with 

 North Pacific Ringgold Expedition, also 

 visited Cuba and Santo Domingo. Andro- 

 pogon wrightii; Aristida wrighhi; Muhlen- 



