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

GRAMINEAE !, !!! Molinia coerulea ssp. altissima Dom. NY, Nyírábrány (Nagyláprét and Kisláprét, Láperdő) S.p.-Bet., S.cin., Mol.c. Forms association. Vámospércs-Nyíracsád (Jónásrész) Associations as above. Numerous, forms association. Petneháza (Daru-rét) Mol.c, S.cin., C.app. In smaller and larger clusters. Bánk (around Csík-gát). Mol.c, S.cin. In larger clusters. (!),!!! Bagamér-Álmosd (Daruláp) Associations as above. Forms associations (It is not clear by Soó whether it had been known). (Soó, 1932, 1940) !, !!! Újléta (Csohostó, Nagy-Ócsa) As above. This association forming species, which is characteristic of drying moorlands, must be mentioned because it has been heavily decreased caused by drying out of the NY, and, on the other hand, this association involves numerous interesting species, e.g. Trollius europaeus, Gentiana pneumonanthe, Veratrum album, Iris sibirica, etc. !, !!! Deschampsia ceaspitosa ssp. parviflora Rieht. NY. Bánk. Humid Rob. (Originally margin of Conv.-Q., transition into F.prat.) Abundant on some places. !, !!! Corynephorus canescens P.B. NY, Bagamér (Daruhegy) Here on some places clear Corynephoretums can be found, on other places F.-Cor. Abundant on several m

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, but decreasing! Martinka (Vermes-side, Csernyusztanya) Associations as above! Újléta (Csohostó). Cor. Pure subpopulation on some ten square metres. Albeit it is hard to believe, the species has decreased, though by degradation of the sand-hills (geese pasturing, other disturbance) it can get new habitats. (!), !!! Calamagrostis neglecta G.M.Sch. NY, Cal.-negl., C.el. (Siroki, 1970) Decreased on some habitats, e.g. around Hajdúsámson, Újléta (Csohostó, Nagy-Ócsa). !,!!! Nyírábrány (Nagyláprét) C.app., G.Men. Some speciemens, were not always found! (!),!!! Stipa capillata L. NY, Bátorliget (Nagylegelő) Astr.-F. Facies forming on the southwestern part of a sandhill. Soó's report (1939) considering whether the species was found on the Nagylegelő or not, is not clear. (See. Soó, 1939. Soó, 1953 in Székessy.) !, !!! Chrysopogon gryllus Trin. NY, Bagamér (Daruhegy) F.vag., Pot.-F.ps. some lo individuals, decreasing or on some places. Vámospércs-Nyíracsád (Jónásrész). F. prat., Astr.-F., Pot.-F. ps. 150-200 specimens ARACEAE (!), !!! Arum alpinum Schott et Kotschy CR, Hencida (Csere Forest) (Máthé, 1939) Rob. (originally F.ps.-Q., Fr.p.-U. (A. tat.Q.]) Seems to be extinct! 27