Chromosome Numbers in British Salicornia

Abstract

COUNTS SO far obtained of the chromosomes of Salicornia species indicate the basic number x = 9. British material examined from localities on the estuary of the River Medway has yielded the following counts: Salicornia perennis Mill. var. radicans Moss and Salisbury in “Camb. Brit. Fl.”,¹ 2n = 18; Salicornia ramosissima Woods, form agreeing closely with the habit illustration in “Camb. Brit. Fl.”, 2n = 18; dwarf red form, 2n = 18; Salicornia stricta Dum. sec. Moss, form agreeing closely with the illustration in “Further Illustrations of British Plants”² of S. europaea L., 2n = 36; Salicornia dolichostachya Moss, erect form with long tapering fertile branches; upper nodes each bearing four branches, 2n = 36; Salicornia disarticulata Moss, 2n = 16 (?).