04.04.2024 Wien 13./14. Hadik- und Coudenhove-Park

4.4.2024 ÖK58 78a/63b F82/ 5920/ Ulmus glabra × U. minor / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F82/ 5920/ Ulmus glabra × U. minor / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F82/ 5920/ Ulmus glabra × U. minor / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F82/ 5920/ Ulmus glabra × U. minor / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ x/ Malus sp. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ x/ Malus sp. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ x/ Malus sp. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ x/ Malus sp. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F179/ 6258/ Ornithogalum nutans agg. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F179/ 6258/ Ornithogalum nutans agg. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F179/ 6258/ Ornithogalum nutans agg. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F123/ 2502/ Syringa vulgaris / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F179/ 6258/ Ornithogalum nutans agg. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F179/ 6258/ Ornithogalum nutans agg. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F96/ 1580/ Acer monspessulanum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F96/ 1580/ Acer monspessulanum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F96/ 1580/ Acer monspessulanum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F78/ 641/ Quercus robur / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F78/ 641/ Quercus robur / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F78/ 641/ Quercus robur / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F/ x/ / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F78/ 641/ Quercus robur / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F78/ 641/ Quercus robur / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F152/ 3142/ Bellis perennis / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F179/ 6258/ Ornithogalum nutans agg. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F179/ 6258/ Ornithogalum nutans agg. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F79/ 668/ Ostrya carpinifolia / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F79/ 668/ Ostrya carpinifolia / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F79/ 668/ Ostrya carpinifolia / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F/ x/ / Wien 14. Hadikpark / >>> Wien Museum Otto Wagner Hofpavillion Hietzing
4.4.2024 ÖK58 78a/63b F79/ 668/ Ostrya carpinifolia / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F179/ 6258/ Ornithogalum nutans agg. / Wien 14. Hadikpark / u. a. m.
4.4.2024 ÖK58 78a/63b F123/ 2490/ Fraxinus excelsior / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F123/ 2490/ Fraxinus excelsior / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F123/ 2490/ Fraxinus excelsior / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F123/ 2490/ Fraxinus excelsior / Wien 14. Hadikpark / >>> Wien Museum Otto Wagner Hofpavillion Hietzing
4.4.2024 ÖK58 78a/63b F96/ 1580/ Acer monspessulanum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F96/ 1580/ Acer monspessulanum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F96/ 1580/ Acer monspessulanum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F91/ 1351/ Caragana arborescens / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F91/ 1351/ Caragana arborescens / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F96/ 1571/ Acer campestre / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F96/ 1571/ Acer campestre / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F96/ 1571/ Acer campestre / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F96/ 1571/ Acer campestre / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F96/ 1571/ Acer campestre / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F143/ x/ Lonicera sp. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F143/ x/ Lonicera sp. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F143/ x/ Lonicera sp. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F143/ x/ Lonicera sp. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F47/ 1961/ Tamarix gallica / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F47/ 1961/ Tamarix gallica / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F47/ 1961/ Tamarix gallica / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F76/ 2261/ Bryonia dioica / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F47/ 1961/ Tamarix gallica / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F47/ 1961/ Tamarix gallica / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F103/ 1963/ Alliaria petiolata / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F103/ 1963/ Alliaria petiolata / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F103/ 1963/ Alliaria petiolata / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F103/ 1963/ Alliaria petiolata / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F31/ 279/ Mahonia aquifolium / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F31/ 279/ Mahonia aquifolium / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F31/ 279/ Mahonia aquifolium / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F89/ 1306/ Cercis siliquastrum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F89/ 1306/ Cercis siliquastrum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F89/ 1306/ Cercis siliquastrum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F89/ 1306/ Cercis siliquastrum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F89/ 1306/ Cercis siliquastrum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F89/ 1306/ Cercis siliquastrum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F89/ 1306/ Cercis siliquastrum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F89/ 1306/ Cercis siliquastrum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F89/ 1306/ Cercis siliquastrum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F89/ 1306/ Cercis siliquastrum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F89/ 1306/ Cercis siliquastrum / Wien 14. Hadikpark / u. v. a. m.
4.4.2024 ÖK58 78a/63b F114/ 2616/ Brunnera macrophylla / Wien 14. Hadikpark / in Bildmitte
4.4.2024 ÖK58 78a/63b F114/ 2616/ Brunnera macrophylla / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F79/ 656/ Betula pendula / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F79/ 656/ Betula pendula / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F79/ 656/ Betula pendula / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F79/ 656/ Betula pendula / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F79/ 656/ Betula pendula / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F79/ 656/ Betula pendula / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F79/ 656/ Betula pendula / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F32/ 280/ Chelidonium majus / Wien 14. Hadikpark / Schöllkraut, Scharbockskraut ….
4.4.2024 ÖK58 78a/63b F114/ 2616/ Brunnera macrophylla / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F114/ 2616/ Brunnera macrophylla / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F152/ 3529/ Taraxacum sect. Ruderalia / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F152/ 3529/ Taraxacum sect. Ruderalia / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F89/ 1306/ Cercis siliquastrum / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F145/ 4480/ Kolkwitzia amabilis / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F145/ 4480/ Kolkwitzia amabilis / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F145/ 4480/ Kolkwitzia amabilis / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F83/ 671/ Celtis occidentalis / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F83/ 671/ Celtis occidentalis / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F83/ 671/ Celtis occidentalis / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F83/ 671/ Celtis occidentalis / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F83/ 671/ Celtis occidentalis / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F83/ 671/ Celtis occidentalis / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F83/ 671/ Celtis occidentalis / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F83/ 671/ Celtis occidentalis / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F83/ 671/ Celtis occidentalis / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F83/ 671/ Celtis occidentalis / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F23/ x/ Magnolia sp. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F23/ x/ Magnolia sp. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F149/ 1769/ Anthriscus sylvestris (s. str.) / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F149/ 1769/ Anthriscus sylvestris (s. str.) / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F149/ 1769/ Anthriscus sylvestris (s. str.) / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F149/ 1769/ Anthriscus sylvestris (s. str.) / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F149/ 1769/ Anthriscus sylvestris (s. str.) / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F149/ 1769/ Anthriscus sylvestris (s. str.) / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F149/ 1769/ Anthriscus sylvestris (s. str.) / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F149/ 1769/ Anthriscus sylvestris (s. str.) / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F142/ 2518/ Viburnum lantana / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F142/ 2518/ Viburnum lantana / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F142/ 2518/ Viburnum lantana / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F142/ 2518/ Viburnum lantana / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ x/ Amelanchier sp. cf. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ x/ Amelanchier sp. cf. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ x/ Amelanchier sp. cf. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ 4913/ Chaenomeles japonica / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ 4913/ Chaenomeles japonica / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ 4913/ Chaenomeles japonica / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ 4913/ Chaenomeles japonica / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ 951/ Prunus avium / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ 951/ Prunus avium / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ 951/ Prunus avium / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ 951/ Prunus avium / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ 951/ Prunus avium / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ x/ Amelanchier sp. cf. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ x/ Amelanchier sp. cf. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ x/ Amelanchier sp. cf. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F95/ 1566/ Cotinus coggygria / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F95/ 1566/ Cotinus coggygria / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F59/ 1598/ Staphylea pinnata / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F59/ 1598/ Staphylea pinnata / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F59/ 1598/ Staphylea pinnata / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F59/ 1598/ Staphylea pinnata / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F59/ 1598/ Staphylea pinnata / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F59/ 1598/ Staphylea pinnata / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F81/ x/ Amelanchier sp. cf. / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F/ x/ / Wien 14. Hadikpark /
4.4.2024 ÖK58 78a/63b F149/ 1769/ Anthriscus sylvestris (s. str.) / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F149/ 1769/ Anthriscus sylvestris (s. str.) / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F126/ 2811/ Veronica hederifolia (s. str.) / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F126/ 2811/ Veronica hederifolia (s. str.) / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F126/ 2811/ Veronica hederifolia (s. str.) / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F126/ 2811/ Veronica hederifolia (s. str.) / Wien 13. Coudenhove-Park / VGr. 10 60 60 60
4.4.2024 ÖK58 78a/63b F126/ 2811/ Veronica hederifolia (s. str.) / Wien 13. Coudenhove-Park / VGr. 10 60 10 10
4.4.2024 ÖK58 78a/63b F126/ 2811/ Veronica hederifolia (s. str.) / Wien 13. Coudenhove-Park / VGr. 10 60 60 60
4.4.2024 ÖK58 78a/63b F126/ 2811/ Veronica hederifolia (s. str.) / Wien 13. Coudenhove-Park / VGr. 60 200 200 60
4.4.2024 ÖK58 78a/63b F126/ 2811/ Veronica hederifolia (s. str.) / Wien 13. Coudenhove-Park / VGr. 10 60 200 60
4.4.2024 ÖK58 78a/63b F81/ 963/ Prunus mahaleb / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F81/ 963/ Prunus mahaleb / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F81/ 963/ Prunus mahaleb / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F81/ 963/ Prunus mahaleb / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F81/ 963/ Prunus mahaleb / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F126/ 2819/ Veronica polita / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F126/ 2819/ Veronica polita / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F126/ 2819/ Veronica polita / Wien 13. Coudenhove-Park / VGr. 10 60 60 60
4.4.2024 ÖK58 78a/63b F126/ 2819/ Veronica polita / Wien 13. Coudenhove-Park / VGr. 10 10 10 10
4.4.2024 ÖK58 78a/63b F126/ 2819/ Veronica polita / Wien 13. Coudenhove-Park / VGr. 10 60 60 60
4.4.2024 ÖK58 78a/63b F126/ 2819/ Veronica polita / Wien 13. Coudenhove-Park / VGr. 10 60 60 60
4.4.2024 ÖK58 78a/63b F126/ 2819/ Veronica polita / Wien 13. Coudenhove-Park / VGr. 10 60 200 200
4.4.2024 ÖK58 78a/63b F30/ 224/ Ranunculus bulbosus / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F30/ 224/ Ranunculus bulbosus / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F30/ 224/ Ranunculus bulbosus / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F30/ 224/ Ranunculus bulbosus / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F30/ 224/ Ranunculus bulbosus / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F30/ 224/ Ranunculus bulbosus / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F/ x/ / Wien 13. Coudenhove-Park / >>> Amtshaus Hietzing
4.4.2024 ÖK58 78a/63b F113/ 2377/ Primula veris (subsp. veris) / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F113/ 2377/ Primula veris (subsp. veris) / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F30/ 224/ Ranunculus bulbosus / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F30/ 224/ Ranunculus bulbosus / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F103/ 1979/ Arabis hirsuta (s. str.) cf. / Wien 13. Coudenhove-Park / u. v. a. m.
4.4.2024 ÖK58 78a/63b F103/ 1979/ Arabis hirsuta (s. str.) cf. / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F103/ 1979/ Arabis hirsuta (s. str.) cf. / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F103/ 1979/ Arabis hirsuta (s. str.) cf. / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F81/ x/ Prunus sp. / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F81/ x/ Prunus sp. / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F81/ x/ Prunus sp. / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F81/ x/ Prunus sp. / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F81/ x/ Prunus sp. / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F96/ 1580/ Acer monspessulanum / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F96/ 1580/ Acer monspessulanum / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F96/ 1597/ Acer tataricum (subsp. tataricum) / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F96/ 1597/ Acer tataricum (subsp. tataricum) / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F96/ 1597/ Acer tataricum (subsp. tataricum) / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F96/ 1597/ Acer tataricum (subsp. tataricum) / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F96/ 1597/ Acer tataricum (subsp. tataricum) / Wien 13. Coudenhove-Park /
4.4.2024 ÖK58 78a/63b F/ x/ / Wien 13. Schönbrunner Schloßstrasse / Wien Museum Otto Wagner Hofpavillion Hietzing