Fig. 105. 



ORDER DIGYNIA. 205 



Fig. 105 repre- 

 sents two magnified 

 flowers of the orchard 

 grass (Dactylis glo- 

 merata*) ; at , is a 



/ f '1 d cal y x 't composed of 



J\ \ip two valves ; these are 



compressed, keeled^ 

 acute; one valve is 

 shorter than the parts 

 of the flowers, the 

 other longer ; this calyx is common to the two flowers : b shews 

 the valves or parts of the corollas ; they are oblong and acute : 

 c represents the stamens, which are three in each flower ; the 

 filaments are of the length of the corolla ; the anthers are two 

 forked or bifid : d is the pistil, having an egg-shaped germ, and 

 two spreading and feathery styles : at e, is the seed, not hav- 

 ing any proper pericarp, but enclosed by the two scales of the 

 corolla ; it is single and naked. 



Fig. 106. 



* Glomerata signifies a cluster, alluding to the crowded panicles of flowers. 



t The parts of the calyx, and also of the corolla, are called glumes ; they are 

 all much alike in appearance, being merely a set of sheaths, for the purpose of 

 protecting the stamens ; they are not distinguished by any difference in colour 

 from the leaves or stem. The anthers, which are usually yellow, are the only 

 part of the blossom of the grasses which is coloured. 



t Resembling the keel of a boat. 



18 



