Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 62. (Budapest 1970)

Ujhelyi, J.: Data to the systematics of the sections Bulbosae and Caespitosae of the genus Koeleria. IX.

The plant is the highest ploidy grade member of the Series, hence also of a decidedly robust stature and in favourable habitat conditions the tallest European Koeleria taxon. Its panicle is even larger and more compact than that of Koeleria kerneri UJH. The pili are also bigger on the margins of the leaves. The panicles of plants growing in subalpine regions is more compact, those inhabiting lower and more shaded sites have long blades, and elongate, loose panicles. These variations in habit, deriving form diverse habitat conditions, are accountable for the confusion of the specific features with the phenotypical ones. By its glabrous sheaths and leaves, the plant is securely separable from the (also robust) Koeleria mollis MANN. I do not propose to discuss in the present paper K. DOMIN'S other varieties drawn under Koeleria pyramidata (LAM.) DOM. My only aim now was a clarification of the evolutional series of the given species. Summary In addition to the two known members of the Series Javorkae UJH., the new species Koeleria nyaradyi UJH. inhabits Transylvania. The widely used name Koeleria pyramidata (LAM.) DOM. is a mixtum compositum, containing a number of species similar in habits but genetically wholly unrelated ; they belong to several Series. The Series Molles ÚJHELYI, series nova, comprising plants with hirsute leaves and sheaths and ranging in Central Europe, contains the hexaploid grade Koeleria mollis MANN, described by W. MANN in 1824, a derivation of Koeleria cristata (L.) PERS. em. BORB. and Koeleria majoriflora (BORB.) BORB. On the other hand, there lives in the Alps a distinct evolutional series, the Series Ciliatae ÚJHELYI, series nova, whose diploid grade member is Koeleria montana (HAUSM.) DALLA TORRE, further Koeleria karneri ÚJHELYI, species nova, and Koeleria lamarckii ÚJHELYI, species nova. The members of the Series are characterized by glabrous sheaths and the pili restricted only to the leaf margins. According to the herbaria] investigations, the range of the entire Series is delimited to the central parts of the Alps. Kefe re nces: 1. ASCHERSON, P. & GRAEBNER, P.: Synopsis der Mitteleuropäischen Flora (Leipzig, 1899, pp. 1-405). — 2. DOMIN, K. : Kritische Bemerkungen zur Kenntnis der böhmischen Koeleria-Arten (Allg. Bot. Zeitschr., 9, 1903, p. 21-25, 41-45, 77-81). — 3. DOMIN, K.: Fragmente zu einer Monographie der Gattung Koeleria (Magy. Bot. Lap., 3, 1904, p. 174-187). — 4. DOMIN, K.: Fragmente zu einer Monographie der Gattung Koeleria (Magy. Bot. Lap., 4, 1904, p. 331-348). — 5. DOMIN, K.: Monographie der Gattung Koeleria (Bibl. Bot., Stuttgart, Heft 65, 1907, pp. 354). —- 6. HEGI, G.: Illustrierte Flora von Mittel-Europa (München, 1, 2. Aufl., 1935, pp. 528). — 7. SZODERIDT, I. & TALLOS, P.: A Koeleria pyramidata (Lam.) Domin Magyarországon (Bot. Kőzi. 53,1966, p. 31-33). — 8. ÚJHELYI, J.: Data to the Systematics of the Subsectio Glaucae of Sectio Bulbosae of the Genus Koeleria (Ann. Hist.-nat. Mus. Nat. Hung., 53, 1961, p. 207-224). — 9. ÚJHELYI, J.: Data to the Systematics of the Subsectio Bulbosae of the Genus Koeleria. II. (Ann. Hist.-nat. Mus. Nat. Hung. 54, 1962, p. 199-220). - 10. ÚJHELYI, J.: Data to the Sectio Bulbosae and Sectio Caespitosae of the Genus Koeleria. V. (Ann. Hist.-nat. Mus. Nat. Hung., 57, 1965, p. 179-202).