S68 



TfTEEDS AXD USEFUL PLANTS. 



The abovj c-:ts represent in detail three diffjrent forms of the inflorescence of grasses. Fi'G. 

 24?. A spikelet of a one-fiowerel grass, a The lower, and 6 the upper glume, c The lower 

 palea. cZ The r,pp:-r palea harlng" fsvo nerves, e The stamens and pistil, the latter ^^";th 

 two pl'imose stigmas, ana two scales a: its base. Fig. 249. Spikelet of a three-fiowered 

 grass (Anthoxanth im) with one l:)wer only fertile. Fne parts separate! and placed in 

 their relative posirion helow. a and & Fne lower and upper glumes, c and The im- 

 perfect florets, each of a sinrie awned palea. e Lower palea of the perfect flower. 

 /Upper palea of the same, a Ti:? twj stamens. Ti The pistil. Fig. 24?.' A spikelet of a 

 several-flowered grass, a ai i \, I. vvr a- i -jpp^r ciames. c d e f. The flowers placed 

 oa alternate sides of a short stem t-r r.ich:i. g A terminal abortive floret. 



