(299) 



' ' Canary grass. " Native of the Medi terranean 

 region; used as bird's food and probably es- 

 caped with the rubbish of birds' cages. 



2. P. INTERMEDIA Bosq. Panicle dense and 

 spike-like; glumes pointed with a broad keel. 

 . Common. Spring. 



3. P. AMETHYSTIXA Trin. Panicle dense and 

 spike-like; glumes with a narrow keel. — IC • 

 Contra Costa hills. Summer. 



4. P. ARUNDINACE L. Panicle branched; 

 glumes not all carinate, pointed, 3-nerved, — U- 

 Niles. Summer. 



6. Hierochloa Gmeliu. Holy Gkass. 



Spikelets 3-flowered; flowers sessile. Glumes 

 equal, car in ate. Upper flower ^ ; lower palet 

 carinate; upper 1-nerved. 2 lower flowers S ; 

 lower palet carinate, upper 2-carinate. — 71. 

 Spikelets pedicillate. Leaves flattened. 



1. H. MACROPHYLLA Th u r b. — Tamalpais. 

 Summer. 



Fragrant grass, perhaps containing cumarine 

 like our Galiiun irifloruin and the European 

 Asperida odorata (Waldmeister). 



7. Anthoxanthum L. Sweet Vernal-grass. 

 Spikelets 3-flowered. Glumes 2, carinate; 

 lower glume shorter, 1-nerved; upper 3-nerved. 

 Upper flower g< , with 2 navicidar palets with- 

 out awns; lower palet wra]:>t round the upper. 



