. The vegetation of the Siberian-Mongolian frontiers (the Sayansk region). Botany; Botany. In external habitus, Carex displodens nov. spec, somewhat resembles Carex capil- laris, but is, for the rest, in so far characterized by its minute, broadly fusiform, straight, completely beakless, narrow perigynia, being always burst by the ripe nut that it can hardly be confounded with any other species. Collected on the Abakan Steppe, near Ust Kamuishto, especially in moist, loamy and saliferous soil, together with various halophilous plants, as Glaux marilima subspec. pedunculata, Plantago marilima s
. The vegetation of the Siberian-Mongolian frontiers (the Sayansk region). Botany; Botany. In external habitus, Carex displodens nov. spec, somewhat resembles Carex capil- laris, but is, for the rest, in so far characterized by its minute, broadly fusiform, straight, completely beakless, narrow perigynia, being always burst by the ripe nut that it can hardly be confounded with any other species. Collected on the Abakan Steppe, near Ust Kamuishto, especially in moist, loamy and saliferous soil, together with various halophilous plants, as Glaux marilima subspec. pedunculata, Plantago marilima subspec. ciliala, Ranunculus plantaginifolius, Lepidium crassifolia, Primula longiscapa, and others. In flower and with ripe fruits in the second half of June. Carex atro-fusca Schkuhr, Riedgr. I (1801) p. 106. subspec. coriophora (Fischer) Kiikenth. H. 38 (IV, 20, 1909) p. 554; Kiikenth. Cyper. Sibir. in ^eRqeiiKO, Max. $.i. Ciio. II (1912) p. 150. Carex uslulaia var. /S Trev. in Ledeb. Fl. Ross. IV, p. 295. Carex ustulata y C. A. Meyer in Ledeb. Fl. Alt. IV, p. 233. Carex uslulaia var. Turczan. Cat. Baical. no. 1263. [Tab. II, Fig. 1]. This subspecies is especially characterized by its short and thick spikes, of a pallid yellowish brown colour. The culms are erect, from 30 to 40 cm. high. The leaves are flat, comparatively broad and short, to 6 mm. broad, of a greyish green colour, rough at the margin and along the nerves underneath, from Va to K of the length of the culms. The number of the spikes to 7, nearly ovoid, on capillaceous, relaxed stalks, from 1 to 2 cm. long. The upper spike is com- monly wholly staminate, or, at times, with some few pistillate flowers at the summit. The pistillate spikes are com- paratively short and obtuse, broadly obovate, to 1,5 cm. long. The glumes are ovate-lanceolate, subacute, 3 mm. long, 1 mm. broad, mostly broadest above the middle, not distinctly sca- rious-margined, of a shining yellowish brown colour, with a greenish
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1921
