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 Puccinia euphrasiana
BiostatusPresent in region - Indigenous. Non endemic
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Caption: FIG. 82. Puccinia Euphrasiana G.H. Cunn. on Euphrasia cuneata Forst. Teleuto spores,
uredospores, and aecidiospores. |
Article: Cunningham, G.H. (1924). The Uredinales, or rust-fungi, of New Zealand: supplement to Part 1; and Part 2. Transactions and Proceedings of the New Zealand Institute 55: 1-58 Wellington:.
Description: 0. Spermogones hypophyllous, immersed, sparse, scattered, associated with the aecidia.
I. Aecidia hypophyllous, in scattered groups up to 5 mm. diam., irregular, seated on
discoloured spots which are absent in certain specimens, pallid-orange. Peridia depressed -
globose, or angular, flattened, 0.2 mm. diam., immersed and covered by the epidermis,
opening by an irregular apical pore, hyaline. Spores subglobose, polygonal or elliptical, 22-30
x. 18-22 mmm; epispore hyaline, densely and minutely verruculose, .1-5 mmm thick, cell-contents vacuolate, orange.
II. Uredosori amphigenous, chiefly hypophyllous, scattered, orbicular or elliptical, 0.5-1 mm.
diam., bullate, pulverulent, cinnamon -brown, surrounded by the ruptured epidermis. Spores
subglobose or elliptical, 20-30 X 18-23 mmm.; epispore pallid cinnamon, moderately and
finely echinulate, 1-1.5 mmm. thick, cell-contents vacuolate, cinnamon; germ-pores 2,
equatorial, conspicuous.
III. Teleutosori amphigenous, in small scattered groups of 3 or 4 sori, seated on dead and
discoloured spots, bullate, pulverulent, dark chestnut-brown; partially covered by the ruptured
epidermis. Spores elliptical, seldom subclavate, 28-38 X 15-20 mmm.; apex. rounded, not
thickened; base slightly attenuate, or rounded, both cells about the same size; constricted at
the septum; epispore smooth; chestnut-brown, 1.5 mmm. thick; pedicel persistent, hyaline, up
to 50 X 8 mmm.; germ-pore of the upper cell apical, obscure, basal pore immediately beneath
the septum; obscure.
Distribution: Distribution: Chile
Notes: The host is endemic, and is not uncommon in the North Island, but is sparingly distributed in
the South. (Cheeseman, 1906, p. 553.)
Article: Dingley, J.M. (1969). Records of plant diseases in New Zealand. New Zealand Department of Scientific and Industrial Research, Bulletin 192: 298 p. Wellington:.
Notes: The rust occurs in Chile and New Zealand: the host plant [Euphrasia cuneata] is endemic to
New Zealand. Cunningham (1931a) stated that it is not uncommon in mountain regions in the
North Island but is sparingly distributed in the south.
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