Puccinia celmisiae G. Cunn. 1924

0. Unknown.
I. Aecidia hypophyllous, seated on discoloured spots visible on the upper surface, scattered or more commonly in small orbicular groups, pallid orange. Peridia flattened-globose, 0.25 mm. diam., immersed, margins incurved, hyaline, covered by the dense tomentum clothing the leaf surface. Spores polygonal, elliptical, or obovate, 27-45 X 20-26 mmm.; epispore hyaline, densely and minutely verruculose, 1-1-5 mmm. thick, cell-contents granular, tinted yellow.

Latin

0. Incognitis. I. Aecidiis hypophyllis, in maculis discoloris, raris vel parvis catervis, flavis. Peridiis plano-globosis, 0.25 mm. latis, immersis, marginibus incurvatis, hyalinis, tornento denso folii tectis. Aecidiosporis polygoniis, ellipticis vel obovatis, 27-45 X 20-26 mmm.; episporio hyalino, solide subtiliter verruculoso, 1-1-5 mmm. crasso, contentu granuloso, luteo.

Notes

The host is endemic, and is confined to the mountain regions of the southern portion of the South Island. (Cheeseman, 1906, p. 307.)
This rust is characterized by the depressed-globose aecidia, large spores, and hyaline, finely verruculose epispore. Sections are necessary to determine the shape and size of the peridium.

Typification

Hab.: In foliis vivis Celmisiae petiolatae Hook. f. Arthur's Pass, Canterbury, New Zealand, 1,000 m. E. H. Atkinson.

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.

Puccinia celmisiae G. Cunn. 1924

Collections Examined

Hosts Celmisia coriacea (Forst. f.) Hook. f. On leaves. Herb. Nos. 748, 749. II, III. Mount Isobel, Hammer (Canterbury), I,170 m., W. D. Reid ! 4 Nov., 1921. (Type.) II. Arthur's Pass (Canterbury), T. Kirk! (Type uredo material from Kew.) II. Fairfield (Dunedin), A. W. Bathgate ! 20 June, 1921. II. Jack's Pass, Hammer (Canterbury), 900m., W. D. Reid ! 12 Nov., 1921. Arthur's Pass (Canterbury), J. G. Myers. 1 Jan., 1923. Celmisia Hookeri Cockayne. Herb. No. 747. II. Macraes (Otago), 600 m., W. D. Reid ! 29 Nov., 1921. Celmisia longifolia Cass. Herb. No. 764. III. Routeburn Valley (Otago), 800m., W. D. Reid ! 7 May, 1921. Lake Harris track (Otago), 1,100 m., W. D. Reid! 6 May, 1921. Macraes (Otago), .600m., W. D. Reid ! 29 Nov., 1921. Taupo-Tokaanu Road, Taupo, 450m., E. H. Atkinson ! 6 Mar., 1922 Celmisia lonngifoia Cass. var. alpina T. Kirk. II. Walter Peak (Otago), 400 m., W. D. Reid ! 27 April, 1921.

Description

0, I. Unknown.
II. Uredosori amphigenous, seated on discoloured spots, orbicular, 1 mm. diam., scattered, or circinnate, when circles up to 5 mm. diam., bullate, pulverulent, reddish-orange, becoming pallid yellow with age, on the lower surface deeply buried in the dense tomentum of the leaf, on the upper surface long covered by the cuticle. Spores globose or obovate. 25-40 X 23-30 mmm.; epispore hyaline, somewhat closely and finely echinulate, 1-5-2 mmm. thick, cell-contents granular, yellow; germ-pores scattered, 6-8, obscure.
III. Teleutosori similar to and arising from the same sori, chestnut-brown. Spores broadly elliptical, 50-62 X 30-36 mmm.; apex rounded, seldom acuminate, not or slightly thickened, base rounded or attenuate, both cells the same size and colour; not or slightly constricted at the septum; epispore smooth, chestnut-brown, 2-3 mmm. thick, cell-contents granular; pedicel deciduous, hyaline, fragile, 30 X 10 mmm.; germ-pore of the upper cell apical, obscure, basal pore immediately beneath or 4 way below the septum, obscure.

Latin

0, I. Incognitis.
II. Uredosoris amphigeniis, in maculis discoloratis, rotundatis, raris, ad 1 mm. latis vel circinnatis ad 5 mm. latis, bullatis, pulverulentibus, luteis, in denso tomento folii profunde immersis. Uredosporis globosis vel obovatis, 25-40 X 23-30 mmm.; episporio hyalino, minute tenuiter echinulato, 2 mmm. crasso, contentu granuloso, luteo; foraminibus germinis raris, 6-8, obscuro.
III. Soris teleutosporiferis uredosoris similibus, castaneis. Teleutosporis late ellipticis, 50-62 X 30-36 mmm.; apice rotundato, non inerassato, basi rotundato vel attenuatts, ad septum necne leniter constricto; episporio leve, pallido-castaneo, 2-3 mmm. crasso, contentu granuloso; pedicello deciduo, hyalino, delicato, ad 30 X 10 mmm.; foramine germinis cellulae superioris apicale, obscuro, foramine basali etatim infra vel j infra septum, obscuro.

Notes

All hosts with the exception of Celmisia longifolia Cass. are endemic; the latter species occurs also in Australia and Tasmania (Cheeseman, 1906, pp. 310-314.)
One other rust found on Celmisia in New Zealand, P. fodiens G. H. Cunn. (fig. 87), closely resembles the species described above, but differs in several particulars. The main differences are tabulated below, and in the text the two illustrations are placed together so that the differences may be observed the more readily.
P. fodiens : Uredospores - Epispore sparsely and coarsely echinulate, 3 mmm. thick. Teleutospores - 40-55 X 28-35 mmm.; apex acuminate, thickened up to 10 mmm., epispore finely punctate.
P. Celmisiae : Uredospores - Epispore fairly closely and finely echinulate, epispore 1-5-2 mmm. thick Teleutospores - 50-62 x 30-36 mmm.; apex rounded, not or slightly thickened, epispore smooth.

Typification

Hab. : In foliis vivis Celmisiae coriaceae (Forst. f.) Hook. f. et Celmisiae Hookeri Cockayne. Mount Isobel, Hammer, Canterbury, New Zealand. W. D. Reid.

Dingley, J.M. 1969: Records of plant diseases in New Zealand. New Zealand Department of Scientific and Industrial Research, Bulletin. 192.

Puccinia celmisiae G. Cunn. 1924

Notes

Cunningham (1931a) stated that all host plants save Celmisia fongifolia Cass. were endemic, this last extending to Australia and Tasmania. Allan (1961) showed that C. longifolia is not present in New Zealand. Collections cited by Cunningham on this host are shown to be characteristic of C. gracilenta and C. alpina. The rust is common on Celmisia spp. in mountainous regions throughout New Zealand. When Celmisia spp. are cultivated as rock plants the rust may become a problem. Petrak (1953) recorded Puccinia celmisiae from Australia on Celmisia longifolia.

Johnston, P.R. 2010: Kew Type Specimens - images and notes from P.R. Johnston, 2010.