* * * NOTES ON BOTANICAL DESCRIPTIONS * * *
Styles, stigma, ray, bracts, bracteoles length are of umbels in ripe fruit.
Fruit length excludes stylopodium.
Stylopodium described in hermaphrodite flowers.
Chromosome number with an * count was made on British material.
Flowers may be early or later flowering dependant on season, cutting of stems, dwarfing etc.
Those plants on rubbish tips may be dwarfed, and deformed.
All Botanical Latin + Greek terms are explained in glossary page.
Some abbreviations not described are usually self explanatory.