Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 54. (Budapest 1962)
Ujhelyi, J.: Data to the systematics of the subsectio Bulbosae of the genus Koeleria II.
rescence, the flowers, the base of the plants, and the shape of their leaves, but also by their anatomical features. New cytotaxonomieal data 1. Koeleria albescens DC: 2n = 42, a hexaploid plant (fig. 1). The plant was secured by way of a seed exchange with the Botanical Gardens of Munich and the Botanical Gardens in Vácrátót. A part of the specimens grow r n there came to my experimental plantation in the fall of 1960. I received all other specimens from the above Botanical Gardens also at that time. The taxon was easily identifiable by its inflorescence, its flower (lemma and palea), and the structure of the leaf-epiderm with the species discussed in my earlier paper (1961). 2. Koeleria maritima LGE.: 2n = 70, an enneaploid plant (fig. 2). The plant comes from an exchange of seeds, also from the Botanical Gardens in Munich. It has the highest chromosome numbers of the series Arenariae ÚJHELYI. I have discussed in details (9) the systematical place of this species. Cytological data have substantiated my conclusions in all particulars. 3. Koeleria degeni DOM.: 2n = 28, a tetraploid plant (fig. 3). This plant also originates from the Botanical Gardens in Munich, received under the name K. brevis STEVEN. It retained its habits also in cultivation, with only the basal leaves becoming longer and more expanded. 4. Koeleria caucasica (TRINER) DOMIN: 2n = 28, a tetraploid plant (fig. 4). It comes from the Botanical Gardens of Brno by an exchange in 1956, under the name K. caucasica (TRINER) DOM. The spikelets are densely pilose, the lemma aristate. It has a striking resemblance to the specimen collected by E. N. BUSH in 1930, down to an agreement in even the anatomy of the laves Figures 1 and 2 of Plate VIII show the anatomy of the basal leaves of BUSH'S specimen. The costal ones have almost disappeared on the abaxial epiderm of the senile leaf. Some thin cellular rows indicate veins here and there, with one or two oblong silica-bodies. The intercostal zone consists of very large macro-cells, with scattered stomata in the single rows (Plate VIII, fig. 1). The structure of the juvenile leaves is similar, with the difference however that they are covered with sporadically occurring hook-hairs (Plate VIII. fig. 2). A structure like this occurs in the case of Gramineae species growing in decidedly mesophytous habitats. 5. Koeleria vallesiana (HONGK.) BERTOL. var. glabra DOM.: 2n = 42, a hexaploid plant (fig. 5). The plant originates from the Botanical Gardens of Bruxelles, by w r ay of a seed exchange in 1955, under the name K. setacea DC The specimen wholly displays the hexaploid character, but the reticulate sheath, laid so much stress upon by DOMIN, had together with the two other plants discussed below, largely lost, its very features characteristical of the original habitat. Nor were the leaves of the plants setaceous, having grown 2—3 mm wide, flat, long blades. 6. Koeleria vallesiana (HONCK.) BERTOL. : 2n = 42, a tetraploid plant (fig. 6). The specimen, originating from Kopenhagen under the name K. setacea DC displays a vary large, compact spike. The spikelets are very minutely pilose and ciliate, the same as the herbarium specimens originating from Valais, named by DOMIN as var. eletior DOM.
