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  4. PSO-01A - Phascion Waldheim 1944 nom. inval. ad interim
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PSO-01A - Phascion Waldheim 1944 nom. inval. ad interim
PSO-01B - Grimaldion fragrantis Šmarda et Hadač in Hadač et Šmarda 1944

Classification phytosociologique européenne (Eurovegchecklist, 2016)

Diagnose

Euhemerophilous pioneer bryophyte vegetation on temporary dry and dry loamy soils in the nemoral and boreal zones

Remarques

pso01 : Waldheim (1944: 41) described the alliance 'Phascion' with the subordinate associations 'Pottietum lanceolatae', 'Pottietum truncatae' and 'Aloinetum'. All the relevés of the alliance, made of presence-absence data, are gathered in a single table without the specification which of the relevés belong to which association . Below the association level, Waldheim distinguished sociations that can be related to the relevés, at least partially. According to ICPN art. 7, Waldheim's associations are invalidly published because no quantitative information is given for the relevés. However, this may change with ICPN ed. 4 as a table of relevés with presence-absence data is not different from a synoptic relevé. Therefore, names like Phascion Waldheim 1944 are invalidly published only ad interim. Choosing the Pottietum truncatae Waldheim 1944 as a lectotype of the alliance when the name of this association will be validly published will make the Phascion Waldheim 1944 an homotypic synonym of the name Phascion cuspidatae Waldheim ex von Krusenstjerna 1945 that is presently the validly published name (ICPN art. 7). (HB, JPT).

Bibliography

 Mucina L., Bültmann H., Dierßen K., Theurillat J.-P., Raus Th., Čarni A., Šumberová K., Willner W., Dengler J., Gavilán García R., Chytrý M., Hájek M., Di Pietro R., Iakushenko D., Pallas J., Daniëls F.J.A., Bergmeier E., Santos Guerra A., Ermakov N., Valachovič M., Schaminée J.H.J., Lysenko T., Didukh Y.P., Pignatti S., Rodwell J.S., Capelo J., Weber H.E., Solomeshch A., Dimopoulos P., Aguiar C., Hennekens S.M. & Tichý L., 2016. Vegetation of Europe: hierarchical floristic classification system of vascular plant, bryophyte, lichen, and algal communities. Applied Vegetation Science, 19 (Suppl. 1) : 3-264. (Source)