. The vegetation of the Siberian-Mongolian frontiers (the Sayansk region). Botany; Botany. various pretty typical situations I have met with. The different plant-societies merge of course gradually into each Fig. 13. From the Abakan Steppe near Askys. Typical grass-steppe mainly with Koeleria gracilis and Festuca ovina sabspec. sulcata In the background reddish-grey Devonian sandstone hills reaching 100—150 m. above the ground. On sandy steppes near Ust Abakansk on the eastern bank of the river, I have collected the following plants at the beginning of June: Koeleiia gracilis, Festuca
. The vegetation of the Siberian-Mongolian frontiers (the Sayansk region). Botany; Botany. various pretty typical situations I have met with. The different plant-societies merge of course gradually into each Fig. 13. From the Abakan Steppe near Askys. Typical grass-steppe mainly with Koeleria gracilis and Festuca ovina sabspec. sulcata In the background reddish-grey Devonian sandstone hills reaching 100—150 m. above the ground. On sandy steppes near Ust Abakansk on the eastern bank of the river, I have collected the following plants at the beginning of June: Koeleiia gracilis, Festuca ovina var. sulcata, Carex supina, Carex pediformis, Carex stenophylla, Stipa pennata var. Joannis, Triticum cristalum var. imbricatum, Eiitrichium pectinatum, (especially commom on the «Kurgans») Androsaces maxima, Echinospermum Lappula var. anisacanthum. Astragalus stenoceras, Poientilla soongorica sabspec. glandulosa nov. subspec, Leptopgrum fumarioides, Thermopsis lanceolata, Algssum alpestre, Astragalus testiculatus, Onosma echioides var. Gmelini (some few scattered specimens here and there somewhat overtopping the common low steppe vegetation, are visible at a great distance because of their gaudy light yellowish colour), Iris flavissima, and Cotyledon spinosa (in June only found rosettes). In rather stony places, on declivities, etc., are here to he found Lychnis sibirica, Poientilla subacaulis. Thymus Serpyllum var. angustifolium, Thalictrum petaloideum, Oxylropis pilosa, Scrophularia incisa, and Dracocephalum nutans. Here and there on the steppe are to be found some slightly moister slopes with open brushwood consisting chiefly of Caragana arboiescens and Cotoneaster melunocarpa, and with the following plants characteristic of these habitats: Spiraea hypericifolia, Scorzonera radiala, Solidago Virgaurea, Aster alpinus, Genliana humilis. Iris ruthenica. Iris ensata, Hesperis matronalis var. sibirica, Myosotis 23. Please note that these images are extracted from scann
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1921
