Literature. 213 



S-permatium. A minute detachable cell produced in a spermogonium, and formerly 



considered to have a male sexual function. 



Spermogonium. The receptacle in which spermatia are produced and detached. It 

 is sometimes called a pycnidium, although that term is generally reserved for 

 a spore-receptacle in another division of Fungi. 

 S-pore. A detachable cell, capable of reproducing the fungus. 



S-poridiolum. Spore produced by the germ-tube of a teleutospore. Also called 

 sporidium, but since this term is already used as equivalent to an ascospore, 

 Saccardo has proposed the present name. 



S-poro-phyte. The stage in the life-cycle of a plant which bears the spores. 

 Sterigma. A delicate stalk from which a spore is detached and arising from a 



basidium. 



Stoma. A breathing pore or aperture in the epidermis forming a means of communi- 

 cation between the inside of the plant and the outer air. 

 Stroma. A cushion or receptacle bearing reproductive bodies. 



Symbiosis. The living together of dissimilar organisms, both contributing to their 

 mutual welfare. It differs from parasitism' in which the benefit is all on the 

 side of the parasitic organism. 

 Teleutosfiore. Generally regarded as the final spore in the life cycle of the Rusts, 



which germinates and produces a promycelium and promycelial spores. 

 Truncate. Cut off abruptly. 



Uredo. The generic name originally applied to the uredospores. 

 Uredos-pore.A spore detached from the apex of a pedicel and producing a 



mycelium. 



Verrucose. Covered with small warts. 



Witches' broom. A diseased state of the shoots of a plant, when they are developed 

 in tangled masses or tufts, due to parasitic agencies and especially fungi. 



LITERATURE. 



A. 



1. ARTHUR, J. C. The Aecidium as a Device to Restore Vigour to the Fungus. 



Proc. Soc. Prom. Agric. Sci., Vol. 23, p. 65. 1902 



2. - - Problems in the Study of Plant Rusts. Bull. Torr. Club, Vol. 30, p. i 



3 . 1 -'Taxonomic Importance of the Spermogonium. Ibid. Vol. 31, p. 3- 



-'The Aecidium of Maize Rust. Bot. Gaz., Vol. 38, p. 64. 1904. 



- Amphisporea of the Grass and Sedge Rusts. Bull. Terr. Club, Vol. 32, 



f, P ' 35 A N 9 ew Uredineous Fungus from Mexico Baeodromous holwayi Arth. 

 Ann. Myc., Vol. 3, p. 18. 1905. 



-. Cultures of Uredineae in 1904. Journ Myc. Vol. n, p. 54- X 93- 



8 Terminology of the Spore-Structures in the Uredmales. ., V 



i. ARTHUR, J. C., and HOLWAY, E. W. D.-Descriptions of American Uredineae. 



Bull. Lab. Nat. Hist., Univ. Iowa, Vol. 5, p. 3*9- I( > 2 - 

 i. ATKINSON, J.-An account of Agriculture and Grazing in New South 



London. 1826. 



B. 



Vol. i, Part I., p. 18. 1884. 

 ' ^opsis'of Yhi ^ue 9 ensland 4 Flora, First Supplement, pp. 84, 85. Bris- 





Supplement) p p. 125-127. Brisbane . l888 ' 



__ e ) . . 



6. - Ibid, Third Supplement, p. 123. Brisbane. iboo. 



Additional Fungus Blights observed to have injured Plant , di 

 year. Ann. Rep. De* P . Agric. of Queensland, p. 45- Brisbane. 1890-9 1. 

 8. - - Contributions to the Queensland Flora. Botany Bull. 2, p. 34. B 



o. l89I ' A nn. Rep. Dep. Agric. of Queensland p. $1. Brisbane. 1891-2. 



