Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 65. (Budapest 1973)
Szujkó-Lacza, J. ; Fekete, G.: Synphenological changes in the vegetation of a submediterranean oak forest (Orno-Quercetum)
In May, the number of species with wholly developed assimilating surface is 46 (Table 3) ; the number of species having a flowering axis or shoots bearing fruits after blossoming is threefold of that of the preceding month. At the same time, the number of species registrable in the phasis with developing shoots and leaves have decreased. In some cases, the gradual termination of flowering and the first phase of fruit-maturing also appear. By the end of June, species having developed fully their vegetative organs and which are flowering appear in maximum numbers in the association. In 45 species, the phenophasis of flowering combines with the maximum leaf surface (Table 3). We have thus verified the vahdity at association level of a phenomenon which has hitherto been proved experimentally in the course of growth analysis for one or tw r o plants only. (NGUYEN VAN TJYEN [1971] estabhshed, for instance, in his experiments with Oryza saliva that the investigated race must first develop its maximum leaf area before attaining the fertile phasis.) In June, the number of populations registered as showing the phenomena of a developing vegetative phasis is more subbordinate. The desorganizational phasis appears in two populations only. Next year buds can be recognized already in nine lignifying species. By the end of July, the number of species registrated with maximally developed leaves culminates (70 species ; cf. Table 3). This phasis is accompanied with the greatest frequency by the stage beyond blossoming or bearing mature fruits. The number of species entering the desorganization phasis is almost equal with that of the regenerative stage. The entire canopy of Polygonatum latifolium yellows, and Table 3. Seasonal change of various phenological phenomena and their combined occurrences Year Month Number of species Species of the previAssimilating species, with developed ous group which and also in the reproassimilation surface still possess also deductive phasis (pheno(phenomenon 24) veloping shoots (phenomena 21-24) mena 23-24 and 31-34) 1970 IV. 22 7 8 V. 4G 5 29 VI. 66 5 45 VII. 70 1 43 VIII. 68 6 33 IX. 44 7 15 X. 25 5 G XI. 16 6 1 1971 in. 17 8 3 Species with deveSpecies showing desOrganization and desorloping vegetative organization phenoganization phenomena shoots (phenomena mena (phenomena on the same species 21-23) 42-43) (phenomena 21-23 and 21-23) 42-43) also 42-43) 1970 IV. 51 1 1 v. 33 1 1 VI. 12 2 0 VII. 5 4 I VIII. 9 7 2 IX. 13 36 8 X. 17 41 8 XI. 15 28 5 1971 III. 27 i 1
