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

(by a well-guided turning the plough can destroy half of the population!) some increase could be found comparing to data of 1981.260-300 specimens were estimated in 1987-88, this value is not reliable, due to significant similarity of the 40-60 recognizable hibrids, so-called "protohibrids" and the "clean" specimens. It is interesting that in the combination of the three species the P. patens is superseded to the marginal areas. Despite data of literature among the three Pulsatilla species occurring in Bátorliget the P. patens is the second to flower and it seems there is no such a significant overlap in the phenological periods. (Csapody, 1982) ! Pulsatilla pratensis ssp. hungarica Soó NY, Martinka (Vermes-side), F.-Cor. tib., Brom.t, Rob., Pot.-F. ps. 180-200 specimens (Soó, 1932) Populations of Létavértes (Aranka Hill) is interesting (Endes, 1988 Bartha, 1988) and very variable, similarly to that of Daruhegy. Namely, P. patens occurred here as well (and these two localities are connected with each other). Probably hibridizations occurred in the past have increased frequency of certain variability characters even when gene exchange has taken place between the population and the original species (these are the so-called protohibrids). For example the dark P. pratensis ssp hungarica specimens of Bátorliget, with wider cover-leaves. They were originally P. borosiana, Wagn., but during several generations have been crossed back with the original P. prat. ssp. hungarica. Delimitation os gene-flow have probably predominated as well. (See in details in a further paper, L. Papp.) Thus it is questionable that different specimens found here (in Létavértes) would be P. pratensis ssp. nigricans Störck, also resulting from morphological reasons. (!) (Hajdúbagos/Nagynyomás). Brom, t, Rob., Pot.-F. ps. etc. On the basis of our estimation made in 1987 number of flowering specimens is ver 3000 and that of immature ones is almost the same. They were flowering in the end of September and beginning of October as well in 1988! See also publication of V. Sípos (1988). (Sípos-Varga, 1988) (!)!!! (Bátorliget/Nagylegelő/. Brom, t., Rob., Pot.-F. ps. 2500-3000 specimens (2-300 hibrids). Many of marginal individuals of the population have disappeared, e.g. as a result of road-building.) (Boros, 1924, 1924) (!)!!! (Bagaméri Forest/Daru Hill/. F.-Cor. tib., Brom., t., Astr.-F.-tib., Pot.-F. ps., Rob. 4, slightly segregated subpopulations, with extreme variability, about 4-500 specimens. They had been heavily disturbed by geese, recently started to recover. Probably there is young genetical and geographical relationship between them and population of Létavértes, Aranka Hill.) (Soó, 1932) (!) !!! Pulsatilla grandis Wender NY, Bátorliget (Nagylegelő), (Boros, 1924) Astr.-F.-tib., Pot.-F. ps., Rob. 3500-4000 specimens (about the same number of hibrids, mainly P. valentiana Wagn). Endangered species, despite the relatively high individual number. It has several animal pests, due to agricultural monoculturesand and local inhabitants pick a lot of flowers even now. Sometimes less than half of the potential crop becomes ripe! This species is the first to flower, seldom already at the end of February! On 16, October, 1988 it flowered with P. pratensis ssp. hungarica! (Individual conservation, avoiding hibridizations (by artificial pollination) is important to conserve clean P. patens specimens, because in the Nyírség they occur only here

! (There are uncertain old data on its occurrence in Pacerdő, Haláp, Hajdúbagos (Boros, 1923) but now they are questionable, in Haláp P. patens rather cross-breaded with P. prat. ssp. hungarica.) (!) !!! Anemone ranunculoides L. NY, Debrecen, (Nagyerdő; Medvesarok) (Boros, 1923 Rapaics, 1924) (Conv.-Q.). In 1988 only 3 flowering and some immature specimens! 9