THE DISCOVERY OF DIPLOID LYCORIS RADIATA (L''HER.) HERB.FROM ANHUI
二倍体石蒜在安徽发现

Lycoris radiata (L'Her. ) Herb, containing wild and cultural types, is distributed in China and Japan. The karyotype variation in three populations of the species from Anhui is studied in this paper. (1) Wuhu wild population has a karyotype 2n = 21 lB=lm 12st 8t lB. The chromosomes range in length from 7. 50 to 14. 10 m with the ratio of the longest to the shortest 1. 88. The karyotype belongs to Stebbins' (1971) 3A. (2) Huang-shan wild population has two cytotypes: 2n = 22 and 2n = 22 lB. Type I : The karyotype formula is 2n = 22= 12st 10t. The chromosomes range in length from 6- 85 to 9. 95 /nm, with the ratio of the longest to the shortest 1. 45. The karyotype belongs to 4A. Type II : The karyotype formula is 2n = 22 lB=6st 14t 2T lB (plate 1: 7, 8). The chromosomes range in length from 6.50 to 11. 02 um, with the ratio of the longest to the shortest 1. 70. The karyotype belongs to 4A. (3) Wuhu cultural type has a karyotype 2n = 33 -30st 3t. The chromosomes range in length from 7.10 to 9. 35 um with the ratio of the longest to the shortest 1. 32. The karyotype belongs to 4A. This result agrees well with the previous reports. The diploid types of Lycoris radiata (L'Her.) Herb, are found in Anhui for the first time