Cytogenetik bei Zierpflanzen

25. List of the Chromosome Numbers in the Genus Crocus

“…Due to the abundant chromosome variations which is comparable to that of the genus Crepis, the genus Crocus has furnished excellent materials for cytological studies. As pointed out by Propach (1939), the genus shows a unique chromosome series which is ranging from 3 to 15 in haploid number, among the thousands of higher plants. Another striking fact about this genus is the occurrence of several species with haploid number as low as 3, whereas in other genera, such as Callitriche, Crepis, there are only one or two species with such remarkably low chromosome number (cf.…”

“…Recently Propach (1939) observed the somatic chromosomes of certain species, and gave a cytological review of this genus. Pathak (1940) reported the somatic counts of twelve species and one variety, and the meiotic counts of two species.…”