626 Transactions. 
This genus is closely related to the genus Puccinia (ул), and’ ів 
separated solely on account of the difference in the number of cells in the 
teleutospore. 
n this paper the different species are arranged under their host 
families, the classification of Engler and Prantl in their Natuerlichen Pflanzen- 
familien being followed. Where several species occur on different hos 
longing to the same family, they are arranged under that family in 
alphabetical order. 
1. Uromyces Dactylidis Otth. (Fig. 6.) Gramineae (1). 
Otth., Mittheil. Nat. Gesell. Bern., p. 85, 1861. 
*Aecidium Ranunculi-acris Pers., Obs. Myc., vol 2, p. 22, 1795. Aecidium 
anunculacearum DC., Fl. Fr. vol. 6, p. 97, 1815, p.p. Uromyces 
graminum Cke., Handbk., p. 520, 1871. 
polygonal, 17-25 mmm.f diam. ; epispore pale yellow, delicately verruculose. 
tured epidermis. Spores subglobose to obovate, 23-32 x 20-25 mmm.; 
epispore delieately and sparsely echinulate, 1:5-2 mmm. thick, golden- 
brown, cell-contents sulphur-yellow, with 3-5 scattered, usually papillate 
с 
_ ILL Teleutosori amphigenous, chiefly hypophyllous, scattered, or arranged 
in lines, up to 2 mm. long, black, compact, bullate, long covered. Spores 
obovate, often pyriform, rarely elliptical, 20-27 x 15-19 mmm. ; apex 
bluntly rounded, seldom acuminate, sometimes truncate, slightly (4 mmm.) 
or not thickened, darker in colour, base attenuate;  epispore smooth, 
1-1-5 mmm. thick, pale golden-brown, cell-contents vacuolate, nucleus 
prominent ; pedicel persistent, tinted, up to 30x5mmm.; germ-pore 
apical, obscure; paraphyses numerous, agglutinated into masses dividing 
the sori into compartments, chestnut-brown. 
Host: Dactylis glomerata L. On leaves, sheaths, and culms. Herb. 
(Auckland), G. H. C. 15 May, 192 
Distribution: Europe. 
abundant, and divide the sori into small compartments. They are some- 
what swollen at their apices and tend to overarch the teleutospores, 
probably functioning as protective organs. 
This species closely resembles U. Poae Rab., and by several authors is 
considered to be identical ; others, again, separate them on both morpho- 
logical (Grove, 1913, р. 128) and biological (Juel, 1908) grounds. 
* As most of the literature in Which the earlier synon i i i il- 
: my is published is not aval 
able in New Zealand, I have compiled the synonyms dn this sleet rtt the publications 
necessary, dates and publications dilod hove Pine and P. А. Saccarda, Wherever 
y nd publications ci i Us 
of Lindau and pion. cited have been verified by reference to Thesaur 
T In this article the contraction “ mmm.” is used for micromillimetres. 
