CRASS FA>nT,Y 



5S7 



2.* L. linicola, occurring also in cultivated fields, is an annual, 

 with no leafy runners, with a slender spike and spikekts 7 — 11- 

 flowered. — Fl. June, July. 



3. L. temuUntum (Darnel). — Closely allied to L. perenne, but 

 without runners, and with spikelets usually about 6-flowered, not 

 longer than the outer glume; flowering glume usually awned. — 

 Cornfields ; fortunately not common in Britain, as its fruit is so 

 poisonous that when ground with flour it is said to cause serious 

 headache and giddiness. — Fl. June — August. Annual. 



45. TRfxicuM (A\'heat). — Perennial grasses with their spikelets 

 solitary, sessile in the notches of a simple ikichis, forming a spike, 

 compressed, with their broad sides towardsjthe rachis, 3- or more- 

 flowered. (Name Classical Latin, from tritfis, rubbed.) 



I. T. caniiium (Bearded Couch). — Root fibrous; stem erect, 

 T — 3 feet high, slender ; spike 2 — 10 in. long, very slender, often 

 flexuous and nodding ; spikelets 2 — 5-flowere'd, bright green ; empty 

 glumes 3 — 5-ribbed, usually 3, shortly awned ; flowering glume 

 longer, prominently 5-ribbed, with a rather long terminal awn. 

 — \\'oods and waste places ; frequent, — Fl. June, July. Perennial. 



