430 ' Transactions. 
l. Urocystis Anemones Winter. (Text-fig. 20, and Plate 45, fig. 2. 
| Ranunculaceae. 
Wint. in Rabh. Krypt. Fl., vol. 1, p. 123, 1881. 
Sori in leaves (when chiefly epiphyllous), petioles, and stems, forming 
irregular swellings, at first covered by the epidermis, becoming exposed 
when appearing as a pulverulent black mass. Spore-balls irregular, from 
15 to 30 mmm. in length, composed of from one to five spores, partially 
surrounded by more numerous and smaller sterile cells. 
Spores subglobose to polygonal, 10-15 x 8-14 mmm. ; epispore smooth, 
or sometimes delicately verruculose, dark brown, 1 mmm. thick; sterile 
cells subglobose to polygonal, pallid brown, smooth, often reduced or 
wanting. 
Host: Ranunculus insignis Hook. f. On leaves and petioles. Herb. 
No. 503. Mount Dennan, Tararua Mountains (Wellington), 1,500 m., E. H. 
Atkinson! 7 Jan., 1922. 
Distribution : World-wide. 
The host is endemic, and confined to the mountain-ranges of both 
Islands (Cheeseman, 1906, p. 10). 
nfection experiments were carried out by Plowright (1889, p. 94). He 
applied conidia to the foliage of Ranunculus repens, and two months later, 
in the vicinity of the points of inoculation, he observed signs of the forma- 
tion of the spore-beds. He found the mycelium to be localized, infection 
occurring wherever the infection hyphae penetrated. 
Germination has been observed and figured by numerous workers. 
Brefeld (1895) found that the spores would germinate only after six 
months’ rest in damp earth; but Kniep (1921) found that forms from 
i some required this period of rest, whilst 
others germinated as soon as they were mature. He considered the species 
to be in reality an aggregate one, thus explaining the differences in 
germination as recorded by various workers. 
LITERATURE CONSULTED. 
Bary, A. ре, 1887. Comparative Morphology and Biology of the Fungi, Mycetozoa, and 
ia. Eng.ed. 522 pp. Oxford. dus ? 
Baupys, E., 1921. Die Sporen der Getreidebrandpilze sirid nicht giftig. Zeitschr. 
anzenkr., vol. 31, pp. 24-27. 
BERKELEY, J. M., 1847. Propagation of Bunt. rans. Hort. Soc. Lond., vol. 2, p. 113. 
-—— 1855. In Hooker's Flora Novae Zelandiae, vol. 2, p. 196. de 
EFELD, O., 1883. Botanische Untersuch en ueber Hefepilze, Fortsetzung der 
Schimmelpilze. Die Brandpi Left 5 28 pp 
~ 1888. Neue Untersuchungen ueber die Brandpilze ond die Brandkrankheiten, Il. 
Nachricht, a. d. Club d. Landwirte zu Berlin, p. 1577 
— 1903. Neue Untersuchungen und Ergebnisse ueber die Бышы Infektion und : 
Verbreitung der Brandkrankheiten des Getreides. Nachricht. a. d. Club d. 
Landwirte zu Berlin, pp. 4224-94. | 
CHEESEMAN, T. F., 1906. Manual of the New Zealand Flora. 1199 pp. | Wellington. 
CLinTon, sag 306 Ustilaginales. · North American Flora, vol. 7, pt. 1. 82 рр. 
‘ork, 
DANGRARD, P. A, 1894. Recherches histologi "M aod tilaginees. La 
Botaniste, vol. 3, p. 240, ogiques sur la famille des Us 
