1. The karyotype studies were made on five races in Tulipa gesneriana.
2. All the races studied were diploid, having twenty four somatic chromosomes.
3. The karyotype of all the races used were analyzed. It was found that some of the karyotypes are similar to each other while the others are different from each other.
4. From the standpoint of the karyotype the five races may be classified into three types.
A-I type : William III and Uncle Tom. A-2 type : Blue Parrot
B type : Lemon Queen and Madame Mottet.