INFLORESCENCE. 



350. THE CORYMB differs from the raceme in having the lower pedi- 

 cels lengthened so as to elevate all the flowers to about the same level, 

 as in the wild thorn. 



20T 205 204 



203, Andromeda racemosa ; flowers in a secund raceme. 204, Verbascum Blattaria; raceme. 

 205, Lolium perenne ; a compound spike or a spike of spikelets. 206, Dipsacus sylvestris ; head 

 with an involucre of leaves. 207, Osmorhiza longistylis ; a compound umbel. 203, Its fruit. 



351. AN UMBEL consists of several pedicels of about equal length 

 radiating from the same point, the top of the common peduncle, as 

 milk-weed, ginseng, onion. When the pedicels of an umbel become 



209 210 



209, Staphylea trifolia ; a pendulous, paniculate cyme. 210, Catalpa ; a panil. 



