636 Transactions. 
2. Uromyciapium McAlpine. 
MeAlp. Ann. Myc., vol. 3, p. 303, 1905. 
Autoecious. Cycle of development includes 0, II, III 
ermogones subcuticular, aparaphysate, subglobose, preceding or 
accompanying uredosori or teleutosori, or 
I. Uredosori without peridia, commonly pulverulent, aparaphysate, 
naked. Uredospores borne singly at the apices of hyaline pedicels, elliptical 
or fusoid; epispore warted or reticulated, with several (2-7) evident 
equatorial germ-pores. 
ПІ. Teleutosori commonly pulverulent, erumpent, naked. Teleuto- 
spores depressed globose, in clusters at or near the apex of a common pedicel 
sed ap clusters composed of one spore and a hyaline vesicle, or two 
т more spores with or without a vesicle ; pedicel hyaline, septate ; epispore 
eaters warted, or striate, germ-pore apical, solitary, conspicuous. 
ew Zealand species 4, introduced. 
This genus, with the exception of one species, is confined to Australasia, 
where it attacks but the one genus of host plant, Acacia. Two of the 
species form large galls on branches and pods; it is probable that the 
mycelium is perennial in these galls, as their surfaces become covered year 
after year with the ochraceous or cinnamon spore-masses. The genus is 
MeAlpine records seven species for Australia. 
1. Uromycladium Robinsoni McAlpine. (Figs. 17, 21a.) 
eguminosae (1). 
MeAlp., Rusts Aus., p. 109, 1906. 
Spe ermogones amphigenous, usually surrounded by the uredosori or 
беш in small groups, sparse, pallid brown. 
П. Uredosori amphigenous, scattered, or more frequently crowded 
and forming circinnate groups up to 2 mm. diam., circular, or more often 
ure ces ins XE qoa р ы а 
Fie. 17. x easiness m. Robinsoni MoAlp. Teleutospores from Acacia melanoxylon 
sicle. 
, vesi 
Fic. 18 отн alpinum MoAlp Teleutospores from Acacia 
Fic. 1 mycladium notabile —€— есен from Acacia decurrens Willd. 
5 is immature 
Fro. 20 20.—Uromyeladium Tepperianum _ (Sun) MoAlp. Teleutospores from Acacia 
Br. is immatu 
armata R. 
Fig. 21a. Ш ear Robinsoni МоА1р. 
Ете. 22.—Puccinia coronata Сда. Uredo- and teleuto uto-spores res from Avena sativa L. 
Fic. 23. —Pucinia. роу sa Erikss. е Henn. Teleutospores from Secale cereale L. 
No. 4 is a three-celled f 
. 24. —Pucinia graminis Pers. Ded and teleuto-spores from Triticum vulgare 
Ете. 25. 2 рада simplex Erikss. et Henn. Teleuto- and meso-spores from Hor deum 
Fie. 26. ier Sorghi Schw. Uredo- and teleuto-spores from Zea Mais L. 
Ето. 27.— Puccinia Caricis Shroet. Teleu utospores from Carex ternaria Forst. f. 
Camera-lucida drawings by author. All х 500. m == mesospores. 
p — paraphyses. 
