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Vánky, K. 1992: Taxonomical studies on Ustilaginales. IX. Mycotaxon 43: 417-425.

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Vánky, K. 1992: Taxonomical studies on Ustilaginales. IX. Mycotaxon 43: 417-425.
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Sori (Fig. 3) on the roots as light to dark brown, globose, ovoid or branched galls, when dried 1-2.5 x 1-5 mm, filled by pale brown, agglutinated, intracellular spore masses. Spores (Figs 4, 5) lemon-shaped to elongateellipsoidal with a papilla on each end, and a short (sometimes absent) pedicel on one end (the rest of the sporogenous mycelium), more rarely broadly ellipsoidal, without or with only small papillae. Spores 12-16 x 15-25(-30) µm (including ornaments), subhyaline to lemon-yellow; wall thick (2-5 µm), two-layered, inner layer thin (c. 0.8 µm), uniform, outer layer uneven, thickest at the two ends of spores. Spore surface provided with coarse ridges situated parallel to the long axis of the spore, only exceptionally oriented slightly obliquely, sometimes bifurcate or, due to a few tuberculate thickenings, irregular. Ridges often comprise even the papillae. In lateral view 6-8 ridges are visible; looking from the longitudinal axis of the spore, 14-20(-24) ridges appear on the equatorial circumference of a spore.
Sori (Fig. 3) gallas radicum pallide brunneas usque atrofuscas, globosas, ovoideas vel ramificatas, sicce 1-2.5 x 1-5 mm, mass sporarum pallide brunnea, agglutinata, intracellulariter disposita repletas formantes. Sporae (Figs 4, 5) vel limoniiformes usque elongate ellipsoidales cum papillis singulis in extremes ambis et ad extremum unum pedicello brevi (nonnunquam absentia residuo mycelii sporiferi), vel rarius late ellipsoidales sine papillis slue modo papillis parvulis instructae, 12-16 x 15-25(-30) µm (una cum ornamento), subhyalinae usque citrino-flavae; pariete crasso (2-5 µm), 2-striato, strato interiori tenui (cca. 0.8 µm), aequali, strato externo inaequali, ad ambos extremos sporarum praecipue incrassato. Superficies sporarum cristis aspens, cum axe longitudinali sporarum parallelis, plerumque simplicibus, sed nonnunquam bifurcates vel, propter increments nonnulla tuberculiformia, irregularibus ornata. Cristae saepe etiam papillas contingentes. Cristae a latere 6-8, ab spice in lines extrema aequatoriali sporarum 14-20(-24) visibiles.

Entorrhiza on Scirpus and Elaeochris

In her monograph of Entorrhiza, J. M. Fineran (1978b:37) gave spore measurements for E. scirpicola (Correns) Saccardo & P. Sydow (on different Eleocharis and Scirpus species) of (10-)13-20(-23.5) x (16-)18-28.5(-31.5) µm, while Correns (1897:38) for his Schinzia scirpicola (on Scirpus pauciflorus Lightf. = Eleocharis guinqueflora (F. X. Hartmann) 0. Schwarz), the type of E. scirpicola, gave 11-14 x 16-20 µm. This discrepancy stimulated me to check the literature and herbarium specimens, i. a. those obtained from Dr. Judith M. Fineran, during my visit to New Zealand. Hooper & Spooner (1981), studying four collections of E. scirpicola on Eleocharis quinqueflora from Great Britain, gave spore measurements of 9-13 x 13-16.5 µm. I found spores of the type specimen to be 11-16 x 13-20 µm (including ornamentation). Fineran, in the characterisation of E. scirpicola, besides examining the type and a collection on Eleocharis quingueflora from Färöarna, included also collections on Scirpus basilaris, S. cernuus, and S. setaceus from New Zealand. These collections differ widely from the type of E. scirpicola. The spores are considerably larger, lemon-shaped and long-ellipsoidal rather than broadly ellipsoidal and, as Fineran (1978b:40) correctly remarked "in the New Zealand collections, the ridges are usually almost parallel to the longitudinal axis of the spore" (comp. also Fineran, 1971:501, Fig. 7; 1978a:845, Figs 25-28), while in the type the ridges are obliquely disposed in irregular spiral lines, often interrupted, anastomosing and branching, as illustrated beautifully by Hooper & Spooner (1981:504, Fig. 1 c). In the New Zealand specimens the ridges are rather uniform.
On Scirpus and Eleocharis, besides E. scirpicola, there are several well-delimited Entorrhiza species, such as E. raunkiaeriana Ferdinandsen & Winge (1914:8), on Scirpus fluitans L., an undescribed species on Scirpus parvulus (in Rbh., Fgi. eur. 1199b), and another species on some specimens from New Zealand. For the latter I am proposing [this] name:

Typus in matrice Scirpus cernuus Vahl, New Zealand, Snares Is., Sink Hole Flat, 111.1971, leg. D. S. & C. J. Horning. Holotypus in Herbario Ustil. Vdnky (HUV 14797!); isotypus in CANU 16026. Topotypus 1.11.1961, leg. B. A. Fineran (HUV 14796!, CANU 16002). Paratypus in matrice Scirpus basilaris (Hooker fil.) C. B. Clarke, New Zealand, North Island, Turakina Beach, south of Wanganui, XI.1967, leg. A. P. Druce (HUV 14795!, CANU 16003).

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26 September 2003
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