50 Transactions. 
Distribution: Europe; South America. Е 
Although twenty species have been described, I doubt whether more 
than a third of this number are valid, as, judging from the published 
descriptions, most appear to have been separated. on host-distinctions 
alone. 
1. Tuberculina persicina Saccardo. (Text-fig. 127, and Plate 2, fig. 8.) 
Sacc., Fung. Ital., tab. 964, 1881. 
Tubercularia persicina Ditm., Sturm. Deutsch. Fl., vol. 1, p. 99, 1817. Саеота 
fallax Cda., Icon., vol. 5, p. 49, 1842. Uredo lilicina Rob.. in Desm., 
‘Ann. Sci. Nat., ser. 8, vol. 3, p. 11, 1847. Cordalia persicina Gobi, 
Mem. Acad. Sci. Imp. St. Petersburg, vol. 32, p. 18, 1885. 
Sporodochia discoid, 0-1-1-25 mm. diam., immersed, surface alone 
showing, pulverulent, consisting of closely compacted tinted hyphae, 
25-80 mmm. long, 2-5 mmm. thick. Conidia unicellular, globose, or 
shortly elliptical, 7-14 mmm. diam., epispore smooth, tinted dingy-violet 
or violet-brown, 1 mmm. thick. 
Habitat: Parasitic upon Aecidium otagense Linds. on Clematis Colensoi 
Hook. f. Miramar (Wellington), 20m., J. W. Bird! 5 Nov., 1920. 
Distribution: Europe. 
is fungus is conspicuous owing to the powdery nature of the spore- 
masses, and the purple colour of the spores and sporodochia. These are 
plano-discoid in shape, and are surrounded by the ruptured epidermis and 
* 
since the sporidochia of the parasite are frequently seen to be partially 
of Tuberculina, and in many systematie papers it has been placed under 
the Ustilaginaceae ; in fact, certain authors state that on germination 
the spores give rise to promycelia [basidia] bearing sickle-shaped conidia 
[basidiospores]. This is not the case, however, for I have germinated the 
spores and find they produce long and slender hyphae. : 
I have little doubt but that the so-called aecidium described and figured 
by Plowright (1899, p. 161) as occurring in the cycle of Puccinia Vincae 
Berk. is this species. He states that the spores are finely echinulate ; but 
Grove (1913, p. 177), in a discussion of this so-called aecidium, states that 
they are smooth. Grove states that the organism in question is not an 
aecidum, and suggests that it may be a parasite ; his description agrees 
closely with T. persicina, differing only in colour, which is stated to be 
dark-brown with a greyish bloom. Grove also mentions that both Sydow 
(1904, p. 338) and Fischer (1904, p. 167) considered the sporidochia on 
Puccinia Vincae to be primary uredosori. 
