Flowers and their Parts 



115 



General Method. 

 Indefinite 



Definite 



Mixed 



Kinds of Clusters. 

 Raceme :— Corymb : more or less flat- 

 topped ; Ornithogalum . 



Panicle : l:)ranched stalks ; 

 Grasses. 



Umbel : simple. Hydrocotyl, 

 Microloma, compound. 



Datiais, Bubon. 



Capitulum or head : Com- 

 positce. Pro tea. 



Cyme:— 2-sided : Spergula, Crasstda ; 

 I -sided : Lobostemon, Helio- 

 trope. 



Olive •.—Leonotis. 



Bracts. — In examining flower arrangements, the flowers 

 are usually found protected by one or more leaf-like bodies, 

 green or coloured, which 

 may have been mistaken 

 for the calyx. In Gladi- 

 olus., Ajit/wlyza, and their 

 relatives this mistake 

 is often made, but you 

 will find that in these 

 flowers the sepals are like 

 petals, and are borne at 

 the top of the ovary. 



Leaves in whose axils 

 flower-buds instead of leaf- 

 buds arise, are termed 

 bracts. They are gene- 

 rally smaller than leaves, 

 but sometimes much larger „ ^, ,, . ,, 



*=' i! iG. 127. — t lower and fruit of the Olive, showing 



and more showy than the a definite or cymose panicle (see p. 113). 



flowers, as in Prolea, 



Poifisettia, and HcBinanthns. When several bracts surround 

 a head of flowers, as in Protea^ the Barberton Daisy, and 

 others of their tribe, they form an involucre. 



When a bract is large and sheaths the flower, as in Arum, 



