142 BULLETIN 772, U. S. DEPARTMENT OF AGRICULTURE. 



Gastridium ventricosum (Gouan) Schinz and Thell. 1 (G. lendi- 

 gerum (L.) Gaud.) (fig. 78), with an awned lemma, a common weed 



on the Pacific coast, appears 

 to have no economic value. 



66. LAGUBUS L. 



Spikelets 1-flowered, the 

 rachilla disarticulating above 

 the glumes, pilose under the 

 floret, produced beyond the 

 palea as a bristle; glumes 

 equal, thin, 1-nerved, villous, 

 gradually tapering into a 

 plumose aristiform point; 

 lemma shorter than the 

 glumes, thin, glabrous, bear- 

 ing on the back above the 

 middle a slender, exserted, 

 somewhat geniculate, dorsal 

 awn, the summit bifid, the 

 divisions delicately awn- 

 tipped; palea narrow, thin, 

 the two keels ending in 

 minute awns. 



An annual grass, with pale, 

 dense, ovoid or oblong woolly 

 heads. Species one, in the 

 Mediterranean region and in- 

 troduced sparingly in Cali- 

 fornia. 



Type species : Lagurus ovatus L. 



Lagurus L., Sp. PL 81, 1753; 

 Gen. PI., ed. 5, 34. 1754. Only 

 one species described. 



Lagurus ovatus (fig. 79) is 

 sometimes cultivated as an 

 ornamental, the woolly heads 

 being used for dry bouquets. 



67. EPICAMPES Presl. 



Spikelets 1-flowered, the 

 rachilla disarticulating above 



1 This name is based on Agrostis 

 ventricosa Gouan, Hort. Monsp. 39, pi. 

 1, f. 2, 1762, which was published 

 earlier in the year than Milium lendi- 

 gcrum L., Sp. PI., ed. 2, 91, 1762, as 

 shown by Linnaeus's reference to 

 Gouan's work in the preface to the sec- 

 ond edition of his Species Plantarum. 



FIG. 78. Gastridium vcntricosum. Plant, X 

 spikelet and floret, X 5. 



