W.Wonters-Contribution a Petude Taxonomique et Caryologiquedu centre Gossiypium et application a Pamelloration du contonnier au congo Belge.Contributions to the taxonomic and karyological studies of the genus Gossypium and its application in the improvement of the cotton plant in Belgin Congo:Taxonomy of the cotton:study of the species indigenous to BelgianCongo and the cytology and phylogeny of G.arboreum L.and G.hirsutum Mill.)Publications de I,Institute National pour L'elude Agronomique du Congo Belge.Serie Scient.No.34:1948,pp.383:bibl.with 5 plates and many figures.The work has been dealt with in three parts viz.Part I the revision of the systamatics of the cottons.Part II.the study of the cotton species indigenous to Belgian Congo and Part III.Contributions to the phylogeny of the cottons-Section NeoGossypium (the tetrap- olid cottons.)The stages in the evoluation of the different systems of classification from the tie of Linnaeus 1753 tio that of Hutchinson 1939 and Konstantinov 1939 has been traced.The author has critically examined the comparative merits and traced.The author has critically the comparative merits and demerits of the different morphological characters employed in the classification of cottons,An interphyletic comparison of the genus Gossypium has been done and a hypothetical phyletic relationship arrived at.A chapter has been devoted to the discussion on the geographical distribution of the genus Gossypium.The second part is devoted entirely to the consideration of the cottons of Belgian Congo ndigenous as well as wild species treated under:-
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