Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 71. (Budapest 1979)

Szujkó-Lacza, J., Kováts, D. ; Rajczy, M.: Revision and numerical evaluation of the Hungarian Spergularia species (Caryophyllaceae)

Character 2. — S. media and S. salina are similar (Table 4, Fig. 3) and the correlation coefficients are highly significant between the number of internodes with lateral branches and the total number of internodes (Table 5) except in S. rubra. Architecturally the numerous and long lateral branches are characteristic of S. media (see character 12), and of S. salina, but S. rubra bears only few branches (Fig. 3, Table 3). Character 3. — The arithmetical mean value agrees with the classical description: "the leaves are longer than the internode" refers to S. media (Table 4). This similarity was expressed in the regression coefficients of the two species (Table 5, Fig. 2). The average length of leaf per internode comes close to 1 or a little higher (Table 4), consequently, in the case of S. subra LINNÉ'S opinion is not characteristic "the leaves are shorter than the internodes". In accordance with the Table 2, it can be seen that these characters show a large amplitude. This may be in connection with the numerous habitats where S. rubra (cf. KOVÁTS & SZUJKÓ-LACZA 1979) grows. Characters 4, 9, 13 and 14 do not seem to be important with respect to differences among the species (Fig. 2, Table 4). Characters 5 and 7 significantly differ from each-other in S. media and S. rubra (Table 4). The length of the capsule shows the same tendency in S. media and S. rubra, while S. salina comes in between them (Fig. 1). On the plot S. media exhibits the higher and S. rubra the lower values (Fig. 1). At the same place some specimens of S. salina create a well separated group by the extremely large petals. Character 6. — In this case S. salina is identical with S. rubra, but S. media differs in it from both species (Table 4). Character 10. — Between the length of the capsule and length of the sepal the correlation is at 5% significance level in S. media and at 2% level in S. salina (Table 5), and also the regression coefficients are very similar with respect to these two species (Fig. 4). — The three species were separated from each other according to the length of the capsules that of the sepal. The lower value was restricted to S. rubra, while the higher to S. media; S. salina is somewhere in between the two species (Fig. 4). Character 11. — The ratio between the length of the capsule vs. petals is very similar in S. media and S. media and S. salina but S. rubra differs from the other two. These two characters are not correlated significantly except in S. media (Table 5). Similarities among the specimens In cluster analysis 14 characters were taken into consideration and according to these the specimens of the species were arranged as is shown in a dendogramm (Fig. 17) and after when we neglected characters 4, and 10-13 the results are plotted in Fig. 18. Both figures show that specimens of S. media and S. rubra are grouped separately, but it can be seen better in Fig. 18, except S. media No. 13, where the average length of internode was extremely short, the pedicel extremely large; and in No. 14 in which the petals were not present; and in S. rubra No. 2 where character 3 was extremely large (media like); and No. 7 due to the extremely short pedicel of the flower. Great similarities exist among the of S. media and S. rubra. The specimens of S. salina on both figures were almost equally distributed between S. media and S. rubra. Only No. 7 is separated from the others, because it has unequally long leaves on the same node (Fig. 14). Conclusions — According to our results S. media and S. rubra has numerous own characters, and a few similar ones. In the architecture of S. salina many similar quantitative