A Debreceni Déri Múzeum Évkönyve 1989-1990 (Debrecen, 1992)

Természettudomány - László Papp–Miklós Dudás: Data on Botanical Values of Central and South Nyírség and their Vicinity

decrease the population. In course of transplanting our experiences were as follows: success of transplanting made at the beginning of flowering, by big ground-ball is 100%, in case of transplanting made in leafy stage, especially without soil, 5-20% of dying was observed. Plants should be transplanted into Fest.-Q. or Rob. developed in the place of the former association, into the former or potentially possibile habitats. On 10.04. 1984 150 specimens were transplanted into the protected oak forest of Bánk, unfortunately beside individuals of Convallaria majális due to the hurry (in this period they were not visible) and lot of them were removed by boars. At that time rate of dying was 30%. On 23.03.1986 53 + 10 specimens were transplanted here and the neighbouring robinia forest (Rob., originally Fest.-Q. and Conv.-Q.) Today it is strictly protected habitat of Bulbocodium vernum ssp. versicolor. Rate of survival was 100%. Today this is the normest subpopulation of the species. At that time there was no protected area in its vicinity, that was why we transplanted them here. On 29.03. 1987 from Vaskapu, on 19.03. 1988 and 04. 03. 1989 from the clearing of the oak forest of Pac (tourist place) 24 +100 + 36 specimens were transplanted into the inner parts of the forest. Transplantings were also successful. I must mention that the species reproduce rather vegetatively, by bulbs (new and new young specimens are flowering on the clearing of the forest every year). It leads to the conclusion that generative reproduction is successful only in certain years, under favourable circumstances and the single individuals may have very long life (K-strategy). Crops can be hardly found and contain rather few seeds. We can hope that the oak forest of Pac and the robinia forest opposite to it will be protected by the county or even higher body this year. (!) Gladioulus palustris Gaud NY. Bagamér (Szentannapuszta) Had Lived in Fest.-Q., in consociation of Betuletum pendulae and its clearings, but probably extincted around 1939 (see Introduction). (Máthé, 1934) (!) !!! Gladiolus imbricatus L. CR. Hencida (Csere Forest) Rob. (Originally F.ps.-Q., A.tat.-Q. and Fr.p.-U.) 180-200 specimens, among them 100-120 are mature. It is not at the border of the two associations as it was supposed by Máthé(1939) but probably was carried by River Berettyó from Transsylvania (possibly not more than 100 years ago) and settled on old roads made by man. Thus involves both associations. Special reconstruction-recovering work had to be started to cut robinias, by what the valuable underground flora could be conserved. (Results of the new botanical investigation of the forest and that of investigation carried out on nature conservation see in a paralel paper. L. Papp, 1989 Mscr, 1989 Mscr.) These data on the exact association and its status are new. (!) !!! Iris humilis Georgi ssp. arenaria NY. Hajdúbagos (Nagy-nyomás) F.Vag., Pot.-F.ps

. 2-3 polycormons. Does not appear every year. Even flowered in 1988, but co tepals were destroyed by Mylacus seminulum (see publications of Sípos, 1988) Bagamér (Daru Hill) F. vag. 3-4 small polycormons, did not appean in 1988, according to the name of the species. Martinka (Vermes-side) F.vag. 2 polycormons, disturbed by geese, did not flower last years. ! Bagamér (Szentannapuszta) Fest.-Q. (Betuletum pendulae consociation) 1 specimen. Did not flower. The species seems to be near extinction in the whole area of the NY, transplanting and artificial propagation by seeds are necessary. 21