COMPARATIVE ANALYSIS. 



235 



Glumes not all setaceous . . . .2 



2. Glumes of lateral florets setaceous, of central floret lanceolate Murinum. 

 Inner glumes of lateral floret not setaceous, the rest 



setaceous ..... Maritimum. 



TfiixicuM. 



1. Spikelets unilateral . 

 Spikelets distichous 



2. Glumes and florets obtuse, leaves involute 

 Glumes and florets awned or pointed, leaves flat 



3. Glumes scarcely ribbed, spikelets crowded 

 Glumes ribbed, spikelets not crowded 



4. Eoot fibrous 



Eoot creeping .... 



BBACHYPODITTM:. 



Spike drooping, awns longer than the florets 

 Spike erect, awns shorter than the florets 



LOLIUM. 



1. Spikelets much longer than the calyx 

 Spikelets not longer than the calyx 



2. Florets with long rigid awns . . 

 Florets with short soft awns 



KOTTBOELLIA. 



Glumes united .... 



KNAPPIA. 

 Root fibrous, florets very hairy 



SPABTINA. 



Florets very hairy .... 

 Florets glabrous 



CYNODON. 

 Florets glabrous, longer than the glumes 



DIGITAEIA. 



Leaves pubescent .... 

 Leaves glabrous 



Dr. Parnell gives the following analysis: 



ALOPECOKTJS. Stem rough 

 Stem smooth 



Lotiaceum. 



2 

 Junceum. 



3 

 Cristatum. 



4 



Caninum. 

 . Repens. 



Sylvaticum. 

 Pinnatum. 



Perenne. 



2 



Temulentum. 

 , Arvense. 



. Incurvata. 

 Agrostidea. 



Stricta. 

 . Alterniflora. 



Dactylon. 



Sanguinalis. 

 Humifusa. 



Agrestis. 



1 



