72 



GRAMINEJE. 



downy; ligule ^ to H lines long, truncate, serrate, blades 2 to 4J lines 

 wide; panicle 3 to 5 in* long, erect, rather dense; branches very 

 short, erect; spikelets lanceolate, turgid, about 6 lines long, 5 to 

 9-flowered; bracts acute, with broad scarious margins and tips; lower 

 3 to 5-nerved; upper 7-nerved; bractlets closely imbricate, broadly 

 oval, 7-nerved, margins and apex broadly scarious; awn from below 

 the apex, slender, 1 to 2\ lines long; palea distinctly ciliate; anthers 

 yellow, f line long. — (B. mollis L.) 



Native of Europe, naturalized and very common by roadsides and 

 in waste places within our limits and northward and southward: 

 Berkeley; Oakland; Livermore; Evergreen; Brentwood; Antioch; 

 Santa Rosa; Point Reyes; Morleys Station. May. Apparently 

 introduced since the State Survey collections were made, as it is not 

 included among the species enumerated in the State Survey publica- 

 tions. Sometimes called "Poverty-grass." Yar. glabrescens 

 (Coss.) Shear, differs from the type in having the bractlet glabrous 

 and shining or only scabrous. Common at Berkeley. 



5. B. carinatus H. & A. Perennial; stems stout, strictly erect, 

 3 to 4 ft. high, the sheaths almost closed, the lower hirsute with 

 long, retrorsely spreading hairs or scabrid, upper sometimes glabrous; 

 ligule about 2| lines long; blades 4 to 6 lines wide near the base, often 

 hairy above; panicle 9 to 12 in. long; lower branches 4 or 5, in half 

 whorls, long, scabrous, becoming drooping, shortly branched and 

 bearing their few spikelets only above the middle; spikelets com- 

 pressed, oblong, 12 to 15 lines long, 7 to 10-flowered; bracts unequal, 

 lower 4 to 6, upper 5 lines long, 3 to 7-nerved; rachilla pubescent; 

 bractlets 7 to 8 lines long, about 7-nerved, densely and minutely 

 pubescent and scabrous; awn 3| to 7 lines long; anthers bright 

 yellow. 



Common in the Coast Ranges of middle California: near Guerne- 

 ville; Berkele}'; Olema, etc. May. 



6. B. marginatus Nees. Near to the preceding, but smaller in 

 every way; stems slender, 1\ to 3 ft. high, often drooping; sheaths 

 more or less hirsute, prominently ciliate at the throat; panicle 4 to 9 

 in. long; spikelets more slender, 6 to 9 lines long, mostly 6 (rarely 10)- 

 flowered; bracts sub-equal, about 6 lines long; rachilla puberulent; 

 bractlets closely imbricate; awn 2 to 3£ lines long. — (Ceratochloa 

 breviaristata Hook. ) 



Common in the Coast Ranges from San Francisco and Berkeley to 

 Eureka. May. 



Tribe 8. Hordeae. Barley Tribe. 



Inflorescence a simple, bilateral spike (rarely normally racemose or 

 paniculate in some species of Hordeum and Elymus, and abnormally 

 in monstrosities or luxuriant cultivated varieties of these and other 

 genera). Rachis often flexuous, more or less flattened and toothed or 

 deeply notched at the nodes; often, but not always, jointed at the 



