Tranzscheliella helutae K.G. Savchenko, 2023
publication ID |
https://doi.org/ 10.11646/phytotaxa.592.2.9 |
DOI |
https://doi.org/10.5281/zenodo.7840499 |
persistent identifier |
https://treatment.plazi.org/id/F36EFF77-033D-3530-FF2A-9282A144A5BB |
treatment provided by |
Plazi |
scientific name |
Tranzscheliella helutae K.G. Savchenko |
status |
sp. nov. |
Tranzscheliella helutae K.G. Savchenko sp. nov.
MycoBank: 846947
Etymology: After a Ukrainian mycologist Dr. Vasyl P. Heluta.
Sori in the culms and surrounding the upper internodes and axes of abortive inflorescences, initially covered by the leaf sheath, later exposed. Peridium absent. Spore mass semi-agglutinated to powdery, dark brown. Spores globose to subglobose, 4.5–5.5 × 5–6.5 μm, dark olive-brown. Spores rarely with polar cups, medium brown, without appendages; spore wall c. 0.5–1 μm, smooth. In SEM unevenly, moderately verruculose.
Typification: UKRAINE. Kherson Oblast: Hola Prystan District, Chernomorsky Biosphere Reserve , 46°45′15′′ N, 32°12′74′′ E, 7 m. asl, On Agropyron cristatum , 07 June 2009, K. G. Savchenko, BUT-F 304 (holotype) .
Other specimens examined: UKRAINE. Kherson Oblast: Hola Prystan District, Chernomorsky Biosphere Reserve , 46°31′35′′ N, 31°94′22′′ E, 1 m. asl, on Agropyron cristatum , 09 June 2009, K. G. Savchenko, BUT-F 305 (paratype) .
Note— Tranzscheliella helutae is a part of T. hypodytes species complex. Tranzscheliella helutae is the only species from this genus occurring on Agropyron (subfamily Pooideae , tribe Triticeae ). Agropyron contains about seven species found in temperate, mostly arid regions of Eurasia ( Dewey 1986). Several species of Agropyron were listed as hosts of T. hypodytes s.l. by Vánky (2012). Tranzscheliella helutae has slightly larger and darker spores than T. hypodytes s.str. (4–4.5 × 4.5–5.5 μm). The spores of T. helutae are unevenly, and moderately verruculose in SEM, which differ from the densely, minutely, uniformly verruculose spores of T. hypodytes s.str. In the phylogenetic analysis, specimens of T. helutae were resolved in a well-supported monophyletic clade ( Fig. 1 View FIGURE 1 ). In a concatenated alignment there are 25 base pair differences between T. helutae and the most closely related species, T. yupeitaniae .
K |
Royal Botanic Gardens |
G |
Conservatoire et Jardin botaniques de la Ville de Genève |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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