Table 1.

The distribution of ITS2 variation between species and geographic regions for British Euphrasia. Allele numbers correspond to the network in Fig. 4. Population-specific variants are aggregated under one column. n = number of samples. Regions refer to: W, Wales; S, Scotland; SW, South West England.

Taxa name	Region	n	Widespread haplotypes						Population-specific haplotypes
			H1	H2	H3	H5	H6	H11
E. anglica	SW	4	4						0
E. anglica	W	3	2	1					0
E. arctica	S	3		1	2				0
E. arctica	SW	2		2					0
E. arctica	W	2		1	1				0
E. arctica × confusa	S	1							1
E. arctica × foulaensis	S	1		1					0
E. arctica × micrantha	S	3		1	1	1			0
E. arctica × nemorosa	S	2		1			1		0
E. arctica × rostkoviana	S	3		1	2				0
E. cambrica	W	3				1	1		1
E. campbelliae	S	3					3		0
E. confusa	S	4		4					0
E. confusa	SW	3			1	1			1
E. confusa	W	3		2					1
E. confusa × micrantha	S	2		1					1
“E. fharaidensis”	S	2		1				1	0
E. foulaensis	S	6		2	2		2		0
E. foulaensis × marshllii	S	2		1			1		0
E. foulaensis × nemorosa	S	1		1					0
E. foulaensis × ostenfeldii	S	1		1					0
E. frigida	S	6		5		1			0
E. heslop-harrisonii	S	6		5					1
E. marshllii	S	3		3					0
E. marshallii × micrantha	S	2		2					0
E. micrantha	S	5		4					1
E. micrantha	SW	3		2					1
E. micrantha	W	3						2	1
E. micrantha × nemorosa	SW	1			1				0
E. micrantha × scottica	W	4		4					0
E. nemorosa	S	3		3					0
E. nemorosa	SW	2		1					1
E. nemorosa	W	3		2					1
E. nemorosa × tetraquetra	SW	1		1					0
E. ostenfeldii	S	5		3					2
E. ostenfeldii	W	1		1					0
E. pseudokerneri	W	3			2		1		0
E. rivularis	W	3	2						1
E. rostkoviana	W	3	2						1
E. rotundifolia	S	1		1					0
E. scottica	S	3		3					0
E. scottica	W	3							3
E. tetraquetra	SW	3		3					0
E. tetraquetra	W	3		1			2		0
E. tetraquetra × vigursii	SW	2	1	1					0
E. vigursii	SW	4	4						0
Total		130	15	67	12	4	11	3	18