CuxNiNGHAM.—The Ustilagineae, or “‘ Smuts,” of New Zealand. 421 
rtain specimens the sori project beyond the perigynium ле several 
E bua giving to infected plants a very conspicuous ap Sori 
may be confined to occasional ovaries, or every ovary in the танана 
may be infected. 
ermination.—ln water a probasidium is produced which becomes 
septate in the normal manner save that in addition the terminal cell becomes 
longitudinally septate. From each of the two cells thus formed a conidium 
is produced, as well as numerous colton conidia. duce 
infection hyphae in the normal manner. It is claimed that germination 
does not occur until the dd are nisi months old. 
3. Cintractia sclerotiformis (Cooke and Massee) n. comb. (Text-fig. 13, 
and Plate 47, fig. 1.) 
Ustilago sclerotiformis Cke. et Mass., Grev., vol. 17, p. 8, 1888. 
Sori in occasional ovaries, sometimes in all, at first partially concealed 
within the perigynium, becoming exposed when compact, black, elliptical, 
up to 6 mm. long. 
Spores subglobose to elliptical, commonly polygonal, 16-22 x 11-18 mmm. ; 
epispore closely and minutely verruculose, dark brown, 1-5 mmm. thick. 
Hosts :— 
Uncinia caespitosa Boott. In inflorescences. Taheraiti, T. Kirk. 
(Type in Herb. Kew.) 
Uncinia leptostachya Raoul. ae No 20. Peel Forest (Canterbury), 
120 m., Н. Н. Allan! Feb., 
Uncinia riparia. R. Br. Herb. No. "er. Peel Forest (Canterbury), 
m., H. H. Allan! 5 April, 1919. ran Peel (Canterbury), 
700 m., H. H. Allan! 6 Mar., 1921. Botanical Gardens, TOM 
tón, 80 ш E. H. Atkins on ! G. muU. 19 Jan. 1921. J.C. Neill! 
G. H. C. 4 Dec., 1923. 
Distribution : New Zealand. 
The first two hosts are endemic, the third occurs also in Australia ; 
all are widely distributed throughout New Zealand (Cheeseman, 1906, 
рр. 801-3). 
This is a true Cintractia, for a.transverse section shows that it 
possesses all the characters of this genus. The species is closely related . 
to the preceding, but is separated by the comparatively broader and 
smaller spores, more conspicuous markings, and thinner nature of the 
epispore, 
I have been unable to germinate the spores. 
1. SPHACELOTHECA de Bary. 
- De By., Verg. Morph. Biol. Pilze, p. 187, 1884. 
VR Sor., Rev. Myc., vol. 12, p. 4, 1890. 
Sori the form of à pulverulent spore-mass, surrounding a арса 
ае М host and fungous tissues, enclosed within а more ог less 
manent false membrane of fungous tissue, ы exposed either br 
apieal or irregular rupture of this membran 
Spores single, epispore coloured, MEAN or variously sculptured ; 
germination as in Ustilago. 
Distribution : World-wide. 
