• M I S Saggoo

      Articles written in Proceedings – Plant Sciences

    • Cytological studies on certain Acanthaceae from Central India

      M I S Saggoo S S Bir

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      Cytological studies have been made on 19 species of Acanthaceae from Pachmarhi hills in Central India. Present studies reveal the first count of chromosome numbers for four species, namely,Dyschoriste depressa Nees,n=30;Lepidagathis fasciculata Nees,n=10;L. hyalina Nees,n=10 andJusticia diffusa Willd. var.prostrata Roxb.,n=9. New cytotypes have been located in three species asHemigraphis latebrosa Nees,n=28 (4x);Rungia parviflora Nees,n=13 (2x) andR. pectinata Nees,n=13 (2x). Diploid cytotypes of three species,viz., Blepharis maderaspatensis (Linn.) Roth,n=15;Justicia betonica Linn.,n=17 andThunbergia alata Bojer ex. Sims,n=9 have been detected for the first time from India. An analysis of the worked out species reveals the existence of only 10·53% polyploid species.

    • Cytological studies on members of family Labiatae from Kodaikanal and adjoining areas (South India)

      S S Bir M I S Saggoo

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      Chromosomal analysis of 33 species of Labiatae from South India have indicated that 23·53% are polyploids. Several taxa are investigated for the first time. Analysis of results in totality for the region indicates that shrubby and perennial species have higher incidence of polyploidy. Polybasic nature of the family as well as the investigated taxa is quite apparent and this indicates the role of eu- and aneuploidy in evolution of various taxa in the family.


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