72 



INFLORESCENCE. 



350. The corymb differs from the raceme in having the lower pedi' 

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

 as in the wild thorn. 



20T 205 204 206 203 



203, Anclromeda racemoaa ; flowers in a secund raceme. 204, Verbascum Blattarla ; raceme. 

 806, LuUucn perenne ; a compound spike or a spike of spikelets. 206, Dipsacus sylvestris ; head 

 with an involucre of leaves. 207, Osmorhiza longistylis ; a compound umbel. 20S, Its fruit. 



351. An umbbj. 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 



109, Staphylea trlfoHn ; a pendulous, paniculate cyme. 210, Catalpa ; a panicle. 



