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6 records were found.

	Hedgcock, G.G.; Siggers, P.V. (1949). A comparison of the pine-oak rusts. Technical Bulletin. US Department of Agriculture 978: 1-30.
	Siggers, P.V. (1922). Torula ligniperda (Willk.) Sacc., a hyphomycete occuring in wood tissue. Phytopathology 12: 369-374, tab. 15.
	Siggers, P.V. (1939). Scirrhia acicola (Dearn.) n. comb., the perfect stage of the fungus causing the brown-spot needle blight of pines. Phytopathology 29 (12): 1076-1077.
	Siggers, P.V. (1938). Fomes annosus on Pinus palustris. Plant Disease Reporter 22 (8): 140.
	Siggers, P.V. (1916). Some cultural characteristics of Pestalozzia funerea Desm. Rep. Michigan Acad. Sc. 17: 14, tab. 12.
	Spaulding, P.; Siggers, P.V. (1927). The European larch canker in America. Science N.S 66: 480-481.