112 . THE STORY OF PLANT LIFE 
inflorescence, which is made up of umbels, just as the 
spokes in an umbrella radiate from a common centre, 
there are some other plants which have the flowers 
arranged in an umbellate manner, such as the flower- 
ing rush, etc. 
Three groups are recognised: those in which the 
umbel is simple or but irregularly compound, as Sea 
Holly, Sanicle, Whiterot, etc.; those in which there 
is a compound umbel, and the furrow of the fruit 
has narrow cells or vitte with primary ridges only, 
such as Hemlock (in the first group there are no 
vittze), Myrrh, etc. ; and those with compound umbels 
with primary and secondary ridges and vitte in the 
furrows, such as Coriander, Carrot, etc. 
In the Umbelliferz are included as British plants, 
White Rot, Sanicle, Astrantia, Eryngo, Water 
Hemlock, Celery, Parsley, Stone Parsley, Goutweed, 
Caraway, Burnet Saxifrage, Water Parsnip, Hare’s 
Ear, Water Dropwort, Fool’s Parsley, Fennel, Seseli, 
Sulphur Wort, Bald Money, Samphire, Angelica, 
Archangel, Parsnip, Hog’s Fennel, Hog Weed, 
Tordylium, Siler, Carrot, Hedge Parsley, Venus’s 
Comb, Rough Chervil, Myrrh, Hemlock, Bladder 
Seed, Alexanders. 
There are some fifteen thousand Umbellifers, which 
are found in all parts of the world, but principally in 
the north temperate zone. 
Amongst them are many plants of economic 
importance, such as Parsnip, Carrot, Celery, Alex- 
anders, common vegetables and potherbs, such as 
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