SYNTAXONOMICAL NOTES. 6
Andrey Yu. Korolyuk1, Nadezda V. Sinelnikova2, Irina S. Chupina1
1Central Siberian Botanical Garden SB RAS, Novosibirsk, Russia
2Institute of Biological Problems of the North FEB RAS, Magadan, Russia
Keywords: vegetation, floristic classification, Festuco-Brometea, Salicetea herbaceae, Therosalicornietea, Siberia, Urals, Magadan Region
Abstract
New syntaxa are described, validation of alliance is carried out. New data on the distribution of plant communities, their ecology and composition are given. Alliance Carici supinae-Stipion zalesskii Korolyuk all. nov. Holotypus - ass. асс. Artemisio austriacae-Stipetum capillatae Schubert, Jager et Mahn ex Korolyuk 2014. Diagnostic species (D. s.): Artemisia austriaca , Carex supina , Festuca valesiaca , Potentilla humifusa , Seseli ledebourii , Stipa capillata , S. zalesskii. The alliance unites bunchgrass typical steppes of the steppe zone of the Trans-Volga-Kazakhstan steppe province (Lavrenko et al., 1991). It is characterized by prevalence of widespread steppe xerophytes, including bunchgrasses. Three associations within the alliance have been described. Ass. Artemisio austriacae-Stipetum capillatae Schubert, Jager et Mahn ex Korolyuk 2014 - bunchgrass typical steppes of Western Siberia, the Urals, the Southern Urals, the Trans-Urals, and Northern Kazakhstan. D. s.: Artemisia austriaca , Carex supina , Festuca valesiaca , Potentilla humifusa , Seseli ledebourii , Stipa capillata , S. zalesskii . Ass. Artemisio nitrosae-Festucetum valesiacae Zolotareva, Korolyuk et Makunina 2023 - steppes on sandy soils. D. s.: Artemisia nitrosa , Camphorosma monspeliaca , Kochia prostrata . Ass. Gypsophilo paniculatae-Artemisietum glaucae Korolyuk 2014 Zolotareva, Korolyuk et Makunina 2023 - steppes on sandy soils. D. s.: Artemisia frigida , A. marschalliana , Cleistogenes squarrosa , Gypsophila paniculata , Helichrysum arenarium , Silene borysthenica , S. borysthenica . A new association is described in the class Salicetea herbaceae Br.-Bl. 1948, the order Salicetalia herbaceae Br.-Bl. in Br.-Bl. et Jenny 1926 and the alliance Saxifrago stellaris-Oxyrion digynae Gjaerevoll 1950. Ass. Hymenolomo crispuli-Salicetum polaris Sinelnikova ass. nov. (Suppl., Table 2) - snowbed communities of the class Salicetea herbaceae Br.-Bl. 1948 in the highlands of the south-eastern spurs of the Chersky ridge (Magadan Region). D. s.: Anthelia juratzkana , Bistorta elliptica , Carex podocarpa , Hymenoloma crispulum , Lagotis minor , Salix polaris. The association includes two subassociations - typicum (Suppl., Table 1, rel. 1-24) and rhodioletosum quadrifidae (Suppl., Table 1, rel. 24-37). A new association is described in the class Festucetea vaginatae Soό 1957, the order Festucetalia vaginatae Soό 1957 and the alliance Sileno borysthenicae-Cleistogenion squarrosaeKorolyuk 2017. Ass. Kitagawio baicalensis-Festucetum beckeri Chupina ass. nov. (Suppl., Table 3) - psammophytic steppes on the terraces of the right bank of the Ob river. D. s.: Kitagawia baicalensis , Melilotus albus , Vicia amoena , Vincetoxicum sibiricum , Hippophae rhamnoides. The article presents new data on the distribution of the associations from the class Therosalicornietea Tx. in Tx. et Oberd. 1958: Salicornietum perennantis (Soó ex Wendelberger 1943) Soó 1964 nom. corr. (Suppl., Table 3, 4), Salicornio perennantis-Suaedetum salsae Freitag, Golub et Yuritsina 2001 (Suppl., Table 5), Suaedetum kulundensis Korolyuk 2010 (Suppl., Table 6), Suaedetum salsae Golub et Tchorbadze in Golub 1995 (Suppl., Table 7), Artemisio nitrosae-Camphorosmetum songoricae Korolyuk 1999 (Suppl., Table 8), Suaedetum corniculatae Burtseva in Mirkin et al. 1992 (Suppl., Table 9), Suaedo corniculatae-Camphorosmetum songoricae Korolyuk 1999 (Suppl., Table 10).
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