VII.—On the Morphology and Cytology of Puccinia Prostii, Moug., a Micro-form with Pycnidia

Puccinia Prostii, Moug., a micro-Puccinia developing pycnidia and teleutospores only, was first recorded for this country by Massee (1913), who stated that it occurred on cultivated tulips; but neither the date nor the locality is mentioned. Saccardo (1888) and Sydow (1904) state that the fungus occurs in Italy and France on two species of Tulipa, T. sylvestris, Linn., and T. Celsiana, DC. (T. australis, Link.).

[1]  J. Craigie.  Union of Pycniospores and Haploid Hyphæ in Puccinia Helianthi Schw. , 1933, Nature.

[2]  D. Ashworth.  Puccinia malvacearum in monosporidial culture , 1931 .

[3]  H. S. Jackson.  Present Evolutionary Tendencies and the Origin of the Life Cycles in the Uredinales , 1931 .

[4]  R. F. Allen.  A cytological study of heterothallism in Puccinia graminis. , 1930 .

[5]  A. Guilliermond.  THE RECENT DEVELOPMENT OF OUR IDEA OF THE VACUOME OF PLANT CELLS , 1929 .

[6]  M. Wilson,et al.  XXIV.—The Life-history and Cytology of Reticularia Lycoperdon Bull , 1928, Transactions of the Royal Society of Edinburgh.

[7]  J. Craigie.  Discovery of the Function of the Pycnia of the Rust Fungi , 1927, Nature.

[8]  C. R. Orton.  A Working Hypothesis on the Origin of Rusts, with Special Reference to the Phenomenon of Heteroecism , 1927, Botanical Gazette.

[9]  J. Craigie.  Experiments on Sex in Rust Fungi , 1927, Nature.

[10]  Thore Lindfors.  Studien über den Entwicklungsverlauf bei einigen Rostpilzen aus zytologischen und anatomischen Gesichtspunkten , 1924 .

[11]  H. Cowles.  Researches on Fungi , 1911, Nature.

[12]  F. Fromme.  The Morphology and Cytology of the Aecidium Cup , 1914, Botanical Gazette.

[13]  G. Massee,et al.  Mildews, rusts, and smuts. , 2022 .

[14]  64. E. Werth und K. Ludwigs: Zur Sporenbildung bei Rost‐ und Brandpilzen , 1912, Berichte der Deutschen Botanischen Gesellschaft.

[15]  E. W. Olive.  Sexual Cell Fusions and Vegetative Nuclear Divisions in the Rusts , 1908 .

[16]  V. Blackman,et al.  Further Studies on the Sexuality of the Uredineae , 1906 .

[17]  A. Christman.  Sexual Reproduction in the Rusts , 1905, Botanical Gazette.