118 



STRUCTUllAL BOTANY. 



sessile flowers either scattered, clustered, or crowded upon it 

 as Plantain, Mullein, Vervain. The so-called spikes of the 



436, Spiranthes cernna flowers in a twisted spike. 436. Orontium aquaticnm flowers on nnked 

 spadix. 437, Batula lenta flowers in ameuts. 



(Brasses, as Wheat, Timothy, are in fact compound spikes, bear 

 ing little spikes or spikelets in place of single flowers (440). 



38 



4.'!8, Andromeda racemosa flowers in a secund raceme. 439, Vwrbascum Blattaria raceme. 440 

 Lolium perenne a compound spike or a spike of spikelets. 441 Dipsacus sylvestris heud with an in 

 volucre tf leaves. 442, Osmorhiza longistylis a compound umbel. 443, Its "fruit. 



