2l6 MYCOLOGY 



Olive, Edgar W.: Sexual Cell Fusions and Vegetative Nuclear Divisions in the 



Rusts. Annals of Botany, xxii: 331-360, 1908. 

 Olive, Edgar W. : Origin of Heteroecism in the Rusts. Phytopathology, i: 139- 



149, October, 191 1. 

 Olive, Edgar W.: Intermingling of Perennial Sporophytic and Gametophytic 



Generations in Puccinia Podophylli, P. obtegens and Uromyces Glycyrrhizas. 



Annales Mycologici, ii: 297-311, August, 1913. 

 Pritchard, F. J.: A Preliminary Report on the Yearly Origin and Dissemination 



of Puccinia graminis. Botanical Gazette, 52: 169-192, 1911. 

 Reed, Howard S. and Crabill, G. E.: The Cedar Rust Disease of Apples Caused 



by Gymnosporangium juniperi-virginianse. Tech. Bull. 9, Virginia Agric. Exper. 



Stat., 1915. 

 Sappin-Trouffy, P.: Recherches histologiques sur la famille des Uredinees. Le 



Botaniste, 5: 59-244, 1896. 

 Stewart, Alban: An Anatomical Study of Gymnosporangium Galls. Amer. 



Journ. Bot., 2: 402-417 with i plate, October, 1915. 

 Sydow, Paul H.: Monographia Uredinearum seu-specierum omnium ad hunc usque 



diem descriptio et adumbratio systematica auctoribus, 1904. 

 Tulasne, L. R.: Second Memoire sur les Uredinees et les Ustilaginee. Ann. Sci. 



Nat., iv. 2: 77, 1854. 

 von Tavel, Dr. F.: Vergleichende Morphologic der Pilze, 1892: 123-133. 

 VON TuBEUF, Dr. Karl F.: Pfianzenkrankheiten, 1895: 340-434. 

 Ward, H. Marshall: Illustrations of the Structure and Life History of Puccinia 



graminis. Annals of Botany, ii: 217 with 2 plates. 

 Ward, H. Marshall: On the Relation between Host and Parasite in the Bromes 



and their Brown Rust, Puccinia dispersa. Annals oT Botany, xvi: 233, 1902. 

 VON Wettstein, Dr. Richard R., Handbuch der Systematischen Botanik, 1911: 

 196-202. 



Suborder Auricularine^. — Family Auriculariace^. — ^The 

 fungi of this family are saprophytes, or v^^ood-inhabiting parasites. The 

 basidia are borne directly on the mycelium, or in variously formed fruit 

 bodies in which the basidia form a layer. The basidia are transversely 

 divided into four cells. Auricularia includes about forty species of 

 which the best known is, Auricularia (Hirneola) Auricula Judce, the Jew's 

 ear fungus, which develops its fruit body on rotten wood. When wet, it 

 is gelatinous; when dry, it appears as a dry crust. It is a rather gelatin- 

 ous, flabby-looking, thin expanded cup or saucer-shaped fungus of 

 a brownish color when expanded smooth inside, veined and plaited so 

 as to have the resemblance to a human ear. It grows on a variety of 

 trees: elm, maple, hickory, balsam, spruce and alder and up to 1900, 

 it had been collected in Ohio, Maryland, Indiana, New Jersey, Pennsyl- 

 vania and West Virginia. Outside it is velvety and grayish-olive. 



