Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 96. (Budapest 2004)

Kováts, D.: Some differences in morphological structure of the vegetative parts (herbage) of Sesleria heufleriana Schur and Sesleria hungarica Ujhelyi (Poaceae)

Distribution of culms according to lengths and their internode lengths Measuring 220 specimens from 9 populations from the original habitats shows that the fertile culms of Sesleria hungarica are ca. 10-15-20 cm higher than the culms of Sesleria heufleriana (Fig. 2, Tables 3-4). In accordance with this difference of lengths in culms, the lengths of internodes are also different at each level of the culms. The panicles of Sesleria hungarica are also longer than those of Sesleria heufleriana. In order to comparable the internodes at the proper levels, the culms with 2, 3, and 4 internodes are to be separately matched. In each case the lowest internodes of Sesleria hungarica are twice longer than those of Sesleria heufleriana. The uppermost (longest) internodes of the culms, below the panicles, are 10-15 cm longer than in the case of Sesleria hungarica. The differences in the full lengths of culms - at both taxa - approximately correspond to the length differences and their ratio of the uppermost (longest) intednodes below the panicles (Fig. 2, Tables 3-4). Table 3. Average data of panicle, culm, and internode lengths, ratio of the lengths of culms and uppermost internodes, ratio of the lengths of leaf blades and leaf sheats of Sesleria heufleriana average internode average cumulative uppermost ratio of leaves ratio of width of serial lengths of lengths of internodes the aver- serial the averpanicles numbers 1. internodes internodes free from age num- age lowest 2.3. leaf lengths of bers lengths uppermost sheaths culms and of leaf internodes uppermost blades internodes and leaf sheaths 0.8 cm 1 3 cm 3 cm 29 cm 46/43 cm 1 5 2.5/14 cm uppermost leaves 2 4 8/6.5 cm 2 43 cm 46 cm 3 3 16+7/5 cm panicles 1.8 cm 1.8 cm 46/42 cm 4 2 22+7/4.5 cm 5 1 28+7/4.5 cm lowest leaves 3 42 cm 46 cm 2 3.5 cm 4 cm 1 0.5 cm 0.5 cm