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 Puccinia foyana
BiostatusPresent in region - Indigenous. Endemic
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Caption: FIG. 78. Puccinia Foyana G. H. Cunn. on Ranunculus Enysii T. Kirk. Teleutospores and
mesospore. |
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. Unknown.
I. Aecidia amphigenous, chiefly hypophyllous, in crowded irregular groups, seated on
somewhat inflated spots up to 10 mm. diam., orange. Peridia copulate, 0.5 mm. diam.,
margins erect, somewhat incurved, white, laciniate. Spores polygonal or elliptical, 22-30 X
15-20 mmm.; epispore hyaline, finely and densely verruculose, 1 mmm. thick, cell-contents
vacuolate, orange.
III. Teleutosori amphigenous, petiolicolous and caulicolous, arranged in scattered groups up
to 5 mm. diam., bullate, pulverulent, orbicular, 0.25-0.5 mm. diam., long covered, becoming
exposed by the longitudinal fissuring of the epidermis. Spores elliptical, less commonly
clavate, 42-65 X 22-26 mmm.; apex acuminate, seldom rounded, crowned with a prominent
hyaline papilla, slightly (6 mmm.) or not thickened, base rounded or bluntly attenuate;
slightly or not constricted at the septum; epispore smooth, bright chestnut-brown, 2.5-3
mmm. thick, cell-contents granular; pedicel deciduous, hyaline, up to 30 X 8 mmm.; germ-pore of the upper cell apical, conspicuous,
papillate, basal pore immediately beneath the
septum, conspicuous, papillate.
X. Mesospores not uncommon, elliptical, 20-35 X 17-24 mmm.
Notes: The host is endemic, and is confined to the mountains of the South Island. (Cheeseman, 1906,
p. 14.)
The conspicuous hyaline apical papilla, thick epispore, and large size of the teleutospores,
separate this species from P. contegens G. H. Cunn.
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: This endemic rust species [Ranunculus enysii] on is known only from the type collection.
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