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

tion the fact that it occurs in the same association but on different habitat as Crocus reticulatus can be explained by biogeographical and ecological reasons. All of its habitat in the Nyírség can be found on a so-called margin (parabola) dune; this geomorphological formation has special features and was formed on a special way as well. (/. Komlódi, 1966,1969 Rix-Phillips, 1981 Borsyetal, 1982) Its boreal distribution in the Carpathien-basin is questionable by our investigations! (Papp-Zilinyi, 1989 Mscr) (See in details in a later paper L. Papp.) Conservation efforts are done on other ways as well. Thus more or less good results have been achieved in experiments to propagate this species on generative way, in cooperation with L. Pólya and A. Nagy. Experiments of tissue culturing (in cooperation with S. Szilágyi) may provide new possibilities as well. Its advantage is mainly large number of explantatums obtained from the plant without significant injury. (These results will be described in later papers, in cooperation with colleagues mentioned above. L. Papp.) (!), !!! Anthericum liliago L. NY., Bátorliget (Nagylegelő) Pot.-F.ps. (No cenological data had been known from here before!) 3 specimens among Pulsatilla. This plant was found by F. Német (see Soó; 1980 and Priszter; 1985). By effective protection of Pulsatilla increase of individual number of this species would be promoted as well. !! Hemerocallis fúlva L. NY., Martinka (margin of Vermes-side, Erdőslyuk Forest) Fest.-Q. Escape, 8-10 specimens along the road. !, !!! Lilium martagon L. NY., Debrecen (Botanical Garden of the Kossuth Lajos University) Conv.-Q. Apparently original member of the original association, ssp. martagon f

. subhercynicum F. Hermann 1. mecsekense. It slightly differs from typical specimens of the Nyírség in characteristic features, 7 specimens. Debrecen (Nagyerdő) Conv.-Q. 15-18 specimens. Years ago even more were found! I. Fintha also found it in the Nagyerdő. Bagamér (Bagaméri Forest, two forests of the part around Vámospércs) Rob. (originally Conv.-Q.), Conv.-Q., Fest.-Q., Conv.-Q. consociation with Tiliaargentea (Tiliosumargenteae Soó.) (The latter is the outermost.) 550-600 -I- 70-80 + 35-40 +140-150 specimens. Its effective protection by transforming Rob. association into the original ones, leaving small clearings. It is interesting that there are many seedlings among old plants in Rob., but they are very susceptible to mycosis declining them. Wonderful flowering could be observe in June, 1988! Újléta (at the border of Conv.-Q. and Fr.p.-U.) Stripe population (on a long stretch) at the eastern foot of the margin dune. 750-800 specimens, variable, flowered also wonderfully on 18. 06. 1988. 60 percent of the population is mature. I found here individuals similar to those of the Botanical Garden!) !,!!! Bánk (around Ludas csárda). Conv.-Q. 80-100 specimens. This habitat was found by F. Erdős on 20.06. 1989. We have knowledge of occurrences of species in Külsőguti and Ömbölyi forests. Habitats enlisted here are important, since every literature mentiones only Bátorliget. This ecotype of the Nyírség having its genetic character is very important in survival of the species. (Sterbetz, 1989) !, !!! Muscari botryoides Mill. ssp. transsylvanicum NY., Bagaméri Forest (around Vámospércs). At the border of Conv.-Q. and Fr.p.-U. (though elements of the latter association are only transitions into Conv.-Q. (succession line). 110-120 specimens. Together with several valuable species such as Iris aphylla ssp. hungarica (the largest population of the Nyírség!), Pyrola rotundifolia, Saxifraga bulbifera, Potentilla al19