By Professor V. H. Heywood (auth.), Prof. Dr. Klaus Kubitzki (eds.)
The unique recommendation to prepare a symposium in regards to the classi fication and evolution of the Flowering crops was once made at, the overseas Botanical Congress at Leningrad in 1975, and the assumption used to be so good accredited by means of numerous colleagues that plans for this kind of symposium speedy took form. An organizing committee along with Professor H. MERXMULLER, Miinchen, Professor V. H. HEYWOOD, interpreting, and Professor ok. KUBITZKI, Hamburg, was once arrange. The convention happened on 7-12 September 197tl within the Institut fiir Allgemeine Botanik of the college of Hamburg less than the auspices of the overseas organization for Plant Taxonomy and was once at tended through eighty individuals from 14 international locations. there were numerous conferences in recent times that have handled the beginning and evolution of the Flowering crops in order that it'd be wondered even if another symposium facing roughly an identical topic have been rather "justified. because the reader will see from the contents of the publication, this symposium differed from related ones held lately in respects: 1. Emphasis was once given to methodological points of the type of upper taxa, and a couple of. a lot classificatory and evolutionary facts on the subject of the better taxa of Flowering vegetation was once presented.
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Extra resources for Flowering Plants: Evolution and Classification of Higher Categories Symposium, Hamburg, September 8–12, 1976
A "dot" indicates that, the observed figure is not significantly different from that calculated on a random basis. A "cross" indicates a meaningless correlation Character Correlations in Dicotyledons . E ~ " "~ ~. ~ . ~ . " g c 11" i! ~ E S ~ . =. " :c " § ~ :::0. ~ '§ a. - . ~ " . '" " g " 11 :@ f! ~ . '" . " . ~ . " '! '" . '".. '" ;; . :ir" -;:: ~ ;;" " ~ § 3 ] : "8 "8 a .. ~ E "0 (1976) . 'c ~ (j U1 ~ (j "0 ~ <50. e" . u ~ ;; u: (j ~ " E! c 0 ~ 0. 2 u ~ U "is. ~ c .!! 0 d C E E ~ :§ 0 8 "0 0.
Some 'Problems Associated With Character Correlations @ @ :/ @ (a) @ 41 @ :/ @ (b) @@@ @@@ \:/ @ \:/ @(d) (e) @@@ \jl ~ 'eV (e) Fig. 1. Five model evolutionary processes, each of which, if repeated. many times in different taxa, could have led to correlations today of A with B and A' with B'. In each, the broken lines indicate the survival of ancestral conditions, while the continuous lines indicate evolutionary changes 42 K. R. SPORNE: It has often been claimed, in discussions on evolution, that the commonest combination of characters within a group represents the primitive type for that group.
13, 73-91. RAVEN, P. , 1976: The bases of angiosperm phylogeny: Cytology. Ann. Missouri Bot. Gard. 62, 724-764 (1975). REZENDE, C. M. A. , and GOTTLIEB, O. , 1973: Xanthones as systematic markers. Biochem. Syst. 1, 111-118. - , - and MARX, M. , 1975: Benzyltetrahydroisochinoline-derived alkaloids as systematic markers. Biochem. Syst. Ecol. 3, 63-70. STEBBINS, G. , 1951: Natural selection and the differentiation of angiosperm families. Evolution 5, 2,99-324. - 1974: Flowering Plants. Evolution Above the Species Level.