. The vegetation of the Siberian-Mongolian frontiers (the Sayansk region). Botany; Botany. flowered pistillate spike, starting directly Irom the base on a slender stalk, /. rhizogyna. Some of the specimens are distinctly intermediate to Carex sparsiflora (Wahlenb.) Steud., and may possibly have to be regarded as bastards between these two species. Quite typical specimens of Carex sparsiflora do not, however, occur in my collections. Distribution: The species is distributed nearly all over Europe, except the extreme south, western and northern Asia from Caucasia through Turkestan and Siberia to
. The vegetation of the Siberian-Mongolian frontiers (the Sayansk region). Botany; Botany. flowered pistillate spike, starting directly Irom the base on a slender stalk, /. rhizogyna. Some of the specimens are distinctly intermediate to Carex sparsiflora (Wahlenb.) Steud., and may possibly have to be regarded as bastards between these two species. Quite typical specimens of Carex sparsiflora do not, however, occur in my collections. Distribution: The species is distributed nearly all over Europe, except the extreme south, western and northern Asia from Caucasia through Turkestan and Siberia to Baikal. Introduced into North America. Carex displodens nov. spec. [Tab. IV, Fig. 2]. Culmus 25-M cm. alius, tener, plus minus inclinaius, leviler angulalus, sulcatus. Folia dimidium longitudinis culmi, laxa, angustissima, 1-2,5 mm. lata—fere 1,5-2 mm. lata—plana, in acumen longum, paene flliforme producta, margine scabra, colore oleagineo, vaginis suffuscis. Spi- culae vulgo 3, distantiores; terminalis musculo, 8-12 mm. longa, 2-3 mm. lata, laterales femineae, 10-15 mm. longae, 3-4 mm. latae, muliiflorae et densi- florae, perlonge pedunculatae, peduncu- lis capillaribus, plus minus laxis, tereti- bus, glabris vel puree scabris. Bracteae foliaceae, longe vaginanles, contractae, laminis angustis, attenuatis, spiculam superantibus. Squamae floris femineae late ovatae, parvulae, plus minus 1-1,5 mm. longae, slramineo-virides, paene omnino hyalinae, apice rotundato vel late acuminata, 3 nerviae, media distinc- ta, laterales minus conspicuae. Utriculi immaturi cum squamis aequilongi, ma- turi circa V5 longiores, late fusiformes, 1,5-2 mm. longi, triangulati, dare viri- des, fere membranacei, translucidi, glabri, enervii, in summis lateribus spi- culis paucis, exiguis praediti, adversus basin in stipitem brevem, crassum attenuati, apice obtuso, integro, erostrato. Utriculi semper directly nunquam obliqui. Nuce adolescenle, ulriculus disploditur. Nux late ovaia, distincte trigona
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1921
