BH BIO

Harry A. Allard

(28 Jan) 1880 - 1963 (25 Feb)



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Harry A. Allard was an American botanist credited with the co-discovery of photoperiodism. His research extended to plant pathology (tobacco mosaic), plant breeding, as well as pioneering acoustical studies of insects.


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1910. Allard, H. A.. An Abnormal Bract-Modification in Cotton. Botanical Gazette (4): 303-303.Google Scholar
1911. Allard, H. A.. Some Common Species of Crataegus at Thompson's Mills, Georgia. Bulletin of the Torrey Botanical Club (1): 25-32.Google Scholar
1914. Allard, H. A.. A Review of Investigations of the Mosaic Disease of Tobacco, Together with a Bibliography of the More Important Contributions. Bulletin of the Torrey Botanical Club (9): 435-458.Google Scholar
1916. Allard, H. A.. Effect of Environmental Conditions Upon the Number of Leaves and the Character of the Inflorescence of Tobacco Plants. American Journal of Botany (9): 493-501.Google Scholar
1929. Allard, H.A.. Our Insect Instrumentalists and Their Musical Technique. (): .Google Scholar


1932. Allard, H. A.. A Progeny Study of the So-Called Oak Species Quercus Saulii, with Notes on Other Probable Hybrids Found in or Near the District of Columbia. Bulletin of the Torrey Botanical Club (5): 267-277.Google Scholar
1938. Allard, H. A.. Linum Lewisii and Bouteloua curtipendula in West Virginia. Castanea (2): 13-14.Google Scholar
1940. Allard, H. A.. Natural Layering of the Flowering Dogwood (Cornus florida), and Underground Extension of Some Plants. Castanea (8): 122-123.Google Scholar
1940. Allard, H. A.. Phacelia Ranunculacea (Nutt.) Constance, Its Length of Day, Temperature Reactions and Seasonal Adaptations. Castanea (6): 94-97.Google Scholar
1940. Allard, H. A.. Sedum telephium L. in the Bull Run Mountain Area, Virginia. Castanea (2): 17-19.Google Scholar
1941. Allard, H. A.. Aster lucidulus (Gray) Wiegand in West Virginia. Castanea (8): 145-145.Google Scholar
1942. Allard, H. A.. Growth-Behavior of Stellaria pubera. Castanea (4/5): 70-72.Google Scholar
1942. Allard, H. A.. Three Plants New to West Virginia. Castanea (8): 114-118.Google Scholar
1943. Allard, H. A. and E. C. Leonard. The Vegetation and Floristics of Bull Run Mountain, Virginia. Castanea (1/3): 1-64.Google Scholar
1943. Allard, H. A.. The Eastern False Mistletoe (Phoradendron flavescens); When Does It Flower?. Castanea (4): 72-78.Google Scholar
1943. Allard, H. A.. Two Species of Juncus New to West Virginia. Castanea (7/8): 132-133.Google Scholar
1944. Allard, H. A.. A List of Plants Collected at Thompson's Mills, Jackson County, in Northern Georgia, in 1910. Castanea (7/8): 135-140.Google Scholar
1944. Allard, H. A. and E. C. Leonard. The Cladoniae of Bull Run Mountain, Virginia. Castanea (4): 81-100.Google Scholar
1944. Allard, H. A.. Second Year Sprouts of Black Cherry. Prunus Serotina, Fruiting. Castanea (5/6): 117-117.Google Scholar
1944. Allard, H. A.. Cleistogamy in Lamium (Labiatae). Castanea (5/6): 112-114.Google Scholar
1944. Allard, H. A.. The Status of Oxypolis rigidior var. Ambigua (Nutt.) Robinson. Castanea (5/6): 109-110.Google Scholar
1944. Allard, H. A. and E. C. Leonard. Additions to the Flora of Bull Run Mountain, Virginia. Castanea (7/8): 130-134.Google Scholar
1945. Allard, H. A. and E. C. Leonard. Plants Collected in the Lake Matagamon Region, Piscataquis and Penobscot Counties, Maine. Castanea (1): 13-30.Google Scholar
1945. Allard, H. A.. An Interesting Raspberry, Rubus Illecebrosus Focke, New to West Virginia. Castanea (4): 113-115.Google Scholar
1945. Allard, H. A.. Leucojum aestivum L., Naturalized in Virginia. Castanea (3): 81-81.Google Scholar
1945. Allard, H. A.. Fraxinus nigra in the District of Columbia Area and in Virginia. Castanea (3): 82-87.Google Scholar
1945. Allard, H. A.. The Spurred Butterfly Pea, Centrosema virginianum, in the District of Columbia Area. Castanea (2): 33-35.Google Scholar
1945. Allard, H. A. and E. C. Leonard. Plants Collected on and around Mount Katahdin in Maine. Castanea (2): 46-53.Google Scholar
1945. Allard, H. A.. A Second Record for the Paper Birch, Betula papyrifera, in West Virginia. Castanea (2): 55-57.Google Scholar
1945. Allard, H. A.. Some Behaviors of the Yams (Dioscorea) of the Family Dioscoreaceae. Castanea (1): 8-13.Google Scholar
1945. Allard, H. A.. Panicum xanthophysum, New to West Virginia. Castanea (1): 30-30.Google Scholar
1946. Allard, H. A.. Some Plants Found in Tucker County during the Summer of 1945 New to or Rare in West Virginia. Castanea (2): 57-58.Google Scholar
1946. Allard, H. A. and E. C. Leonard. Shale Barren Associations on Massanutten Mountain, Virginia. Castanea (3): 71-124.Google Scholar
1947. Allard, H. A.. Vaccinium erythrocarpum: What Is the Fruit Color?. Castanea (4): 117-118.Google Scholar
1947. Allard, H. A.. Tragopogon pratensis in West Virginia. Castanea (4): 116-116.Google Scholar
1947. Allard, H. A.. Hibiscus syriacus: Totus Albus in Virginia. Castanea (4): 115-116.Google Scholar
1947. Allard, H. A.. Stellaria Borealis New for West Virginia. Castanea (2): 62-62.Google Scholar
1947. Allard, H. A.. The Direction of Twist of the Corolla in the Bud, and Twining of the Stems in Convolvulaceae and Dioscoreaceae. Castanea (3): 88-94.Google Scholar
1947. Allard, H. A.. Light Intensity Studies in Canaan Valley. West Virginia. Castanea (3): 63-74.Google Scholar
1950. Allard, H. A.. The Sandbox Tree and Its Armament. Bulletin of the Torrey Botanical Club (6): 509-515.Google Scholar