102 SETARIA VIRIDIS. 



the spikelet. Each spikelet of two glumes and two florets. 

 Glumes very unequal. Styles two, long and smooth. Stigmas 

 short and plumose. Stamens three. Anthers deep purple. 

 Seeds smooth and hard. The involucral bristles in Setaria 

 verticillata have the teeth pointing downwards. Length from 

 three to eighteen inches. Root fibrous, annual. 



Flowers in July, and seeds ripen at the end of September. 



The specimen for illustration was gathered in Battersea Fields, 

 by Mr. Joseph Sidebotham, of Manchester. 



SETAEIA GLAUCA. Beatjvois. 



A third species, Setaria glauca, has been discovered by Mr. 

 Borrer, at Weybridge, in Surrey, and also at Hoddesdon, Hert- 

 fordshire, yet it has been considered a spurious British Grass. 

 It has the dentations of the involucre erect, as in S. viridis, 

 but differs from that species in having two glumellas, and in 

 being wavy. 



