Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 58. (Budapest 1966)

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

member of the Transylvanian Series Pseudoglaucae UJH., in my previous papers (9, 10). The hexaploid derivation of Koeleria degeni DOM. is also listed as Koeleria splendens PRESL 6. var. pseudorigidula DOM., in K. DOMIN'S works (1, 2). 32. Koeleria skorpilii (PODP.) ÚJHELYI species nova, combinatio nova Syn. : Koeleria grandiflora BERTOL. subspec. Skorpili PODP. (Verh. Zool. Bot. Ges. 52, 1902, p. 679.) —K. splendens PRESL Sbsp. K. grandijlora BERTOL. var. pseudorigidula DOMIN (Magy. Bot. Lap., 3, 1904, p. 279). — K. splendens PRESL 6 var. pseudorigidula (DOMIN) DOMIN (Monographie der Gattung Koeleria, Bibl. Bot., Heft 65, p. 96). Plantae robustae, dense caespitosae, innovationibus intravaginalibus, rhizomatibus bulboso-incrassatis, sublignosis, altitudine usque 42 cm. Vaginae foliorum basalium adpresse dense hirsutae, vel subglabrae, vaginae vetustae integrae. Rhizomata 1—1.5 cm longa, densa, crassa. Folia senilia usque 4 cm longa, et 3 mm lata, plana, glauca, valde rigida, margine cartilaginea, folia juvenilia usque 7 cm longa, et 1—1.5 mm lata, convoluta, vel plana, glauca, rigida, pruinosa, margine scaberrima, vaginis usque 1 cm longis. Ligulae abruptae, ciliolatae, 0.2 mm longae. Culmi plantarum evolutarum ad unam partem tertiam altitudinis foliosa, laminae foliorum culmeorum usque 2 cm longae, et 3 mm latae, in apicem hyalinam protractae, vaginis usque 8 cm longis, auriculis rigidis. Ligulae 0.8 mm longae, abruptae, ciliolatae. Caules basi bulboso-incrassati, ad 38 cm longi, et 0.8—1 mm crassi, glabri. Paniculae ovato-cylindricae, subdensae, usque 5 cm longae, et 1.5 cm crassae, pallidae. Spiculae 7.5—8 mm longae, bi- vel triflorae, subglabrae. Glumae inaequales, glabrae, inferiores 5.5 mm longae, lanceolatae, superiores 6.5 mm longae, subovatae, acutae; lemmae 7 mm longae, subovatae, vel lanceolatae, subaristulatae, vel acuminatae, superficie scabriusculae, vel breviter pilosae, paleae 6.7 mm longae, angustae, hyalinae, bicarinatae, acutae, vel acuminatae. Cellulae epidermidis vaginae inferioris foliorum innovationum magnae. Series cellularum costalium 5—6, intercostalium 10—13. (Tab. I. Fig. 9.) Floret Junio. Holotypus v

adest in Herbario Musei Nat. Hist. Hungarici Budapestini. Locus classicus: Bulgaria: In colle Razboj ad urbem Sumla. Solo cretaceo. Leg. FR. MILDE, com. et det. K. POLÁK, 5, 1894. Koeleria nitidula VELENOVSKY (?) Herbarium K. POLÁK. Schedula DEGENI: K. grandiflora BERTOL. subsp. Skorpili PODP. ZBG. 1902, 679 ? vaginis glabris differt; schedula DOMINI: Koeleria grandiflora BERTOL. var. pseudorigidula m DOM. Description of the leaf epiderm : On the abaxial as well as the axial sides of the innovational leaves the cells are large. The cellular walls are sinuous. In the senile leaves, the costal zone is 4—6-seriate, the cells of the basic tissue are narrower than those of the intercostal zone, also elongate, sporadically alternating with silicabodies (these latter are rather oblong) ; the rows of silica-bodies are joined on both sides by a cellular row of the basic tissue with narrow walls and without silica-bodies ; due to the medially absent sclerenchyme fascicle, the intercostal zone is highly developed, generally 13-seriate, the cells are large, wide, the stomata appear in 2—3 rows on both sides of the zone, they are impressed; the epiderm of the juvenile leaves is similar to that of the senile ones, except that the silica-bodies of the costal zone alternate regularly with the cells of the basic tissue ; twin silica-bodies are frequent; the intercostal zone is only 6—10-seriate, the cellular rows are narrower than in the senile blades ; the epiderm of both kinds of leaves lack the hairs. Thus the epidermal structure is highly similar to that of its progenitor, Koeleria degeni DOM.,