OLOSSOLOOT OF ANOIOSPERMS. 429 



(d) Heads in a raceme — e.g.. Ambrosia. .Heads Racemose. 



(«) Heads in a spike — e.g., Liatris Heads Spicate. 



And so on. 

 3. Irregular. 



Racemosely or corymbosely compound — 



e.g. , C'atalpa Panicle. 



Compound forms of tlie panicle itself are common — e.g., panicled 

 heads in many Compositae, panicled spikes in many grasses. 



JS. CyMOSB InFIiORBSOBNCE. 



I. Flowers solitary ; terminal — e.g., Anemone 



nemorosa Solitary Terminal. 



II. Flowers in clusters (Cymes). 



1. Lateral brandies in all parts of the flower 



cluster developed — e.g., Cerastium Forked Cyme, or 



Sichasium. 

 (This is the Bipa/rous, and so-called Dichotomous Cyme of authors.) 



3. Some of the lateral branches regularly su.ppressed. 

 (a) The suppression all on one side — e.g., 



Hemerocallis Helicoid Cyme, or 



Bostryx. 

 (6) The suppression alternately on one 



side and the other — e.g. , Drosera. . . Scorpioid Cyme, or 



Cicinnus. 

 (The last two are frequently not distinguished from one another, and 

 are called Monochasia, Uniparous Cymes, or False Racemes.) 



U. Mixed InfIiOkescence. 



1. Cymo-Botryose, in which the primary in- 

 florescence is botryose, while the Sfc^ 

 ondary is cymose, as in Horsechestnut. ■ . Cymo-Botrys. 

 (This is sometimes called a Thyrsus.) 



3. Botryo-Cymose, in which the primary in- 

 florescence is cymose, while the sec- 

 ondary is botryose — e.y.iinmany Com- 

 posim Botry-Cym.e, 



Floral Symmetry. — The parts of the flower are mostly arranged 

 in whorls, which are distinctly separated from each other (cyclic flow- 

 ers) ; in some cases they are arranged in spirals, with, however, a dis- 

 tinct separation of the different groups of organs {TiemicycUc flowers) ; 

 in still other cases the arrangement is spiral throughout, with no 

 separation of the groups of organs {acyclic flowers). 



