112 POA PROCUMBENS. 



base, the centre rib stretching a little beyond the apex of the 

 palea; inner palea somewhat shorter, and having two green 

 marginal fringed ribs. Styles brief. Stigmas branched. Length 

 from three to fifteen inches. Root annual. 



Flowers about the middle of July, and ripens its seed in a 

 month. 



Distinguished from Poa maritima in its annual fibrous root, 

 in the rough rachis and branches, broad flat leaves, and in 

 the greater length of the central rib of the outer palea. From 

 P- distans in the compact panicle, the unilateral branches, in 

 never being deflexed, and in the dorsal rib of outer palea 

 stretching beyond the summit. 



P. rigida, and also P. loUacea cannot be mistaken for it on 

 account of their having acute glumes, destitute of lateral ribs. 



The specimen for illustration was gathered at Blackpool, by 

 Mr. Joseph Sidebotham, of Manchester. 



