ANGIOSPEUM.E, DICOTYLEDON ES. 



7H9 



fig. 442^). The calyx, corolla, and androecium are 4-merous in Cornacefe, 5-nierous 

 in Umbelliferse and Araliaceae (see figs. 442 ^ and 442 ^, and p. 289, fig. 283 ♦). 

 The Umbellales belong chiefly to the North Temperate Zone, but the Araliacca3 aro 



.'.g. 4J2. — Umbellales. 



1 fJei-arlenm Sphondylium (Family Umbellifeiae), flowering plant. - Single flower, s Fruit. * Longitudinal section tliiougli 

 the flower of Erynyium maritimum (Family Unibelliferae). 6 Hydtocoiyle vulgaris (Family Umbellifera;), entire plant. 

 "> Coriius mas (Family Cornacea;), inflorescence. ? Longitudinal section through a flower. » Fruit, i reduced ; ■-. », ♦, ', •, ", 

 and 8 magnified. (After Bailloii.) 



also represented by a number of species in the Tropics. Several of the Umbelliferae 

 are natives of the arctic area of vegetation and of alpine regions. Gaya simplex 

 occurs in the Central Alps as high as 2600 metres above tlie sea-level. Fossil 

 remains, belonging chiefly to the families of Araliacece and Coruacere, have been 



