Anlhoxanthum.] GRAMINE^E. 317 



The ancients, as well as the moderns, attributed poisonous 

 qualities to the L. temulentum ; and even now it is believed 

 in some countries that the Wheat changes into Darnel. 



Triandria. Digynia. 



1. L. perenne, Linn. Perennial Darnel or Rye-grass. 

 Spikelets much longer than the calyx; florets awnless, linear- 

 oblong, compressed ; root perennial. Br. Fl. ed. 3. p. 57. E. 

 Fl. v. i. p. 173. E. Bot. t. 315. 



Waste place*, way-sides and pastures, frequent. Fl. June, July. 

 If . — One to two feet high. Spike with the general aspect of Triticum 

 repens, sometimes from luxuriance compound. Florets linear-oblong-, 

 nerved. — A most valuable grass for the agriculturist, and much em- 

 ployed with clever for artificial pasture and hay, particularly in Scotland. 



2. L. arvense, With. Short-aimed annual Darnel. Spike- 

 lets equal in length with the calyx; florets with short soft (im- 

 perfect) awns ; root annual. Br. Fl. ed. 3. p. 57. E. Fl. v. i. 

 p. 174. E. Bot. t. 1135. 



Fields, with the following, of which it is now generally thought but 

 a var. Fl. July. ©. 



3. L. temidentum, Linn. Bearded Darnel. Spikelets equal 

 in length with the calyx ; florets as long as the rigid awns ; root 

 annual. Br. Fl. cd. 3. p. 57. E. FL v. i. p. 174. E. Bot. 

 t. 124. 



Corn-fields, too common, in several parts of the country. Fl. July. 

 ©. — The seeds mixed with wheat and made into bread, have proved 

 highly injurious to those who have eaten it. 



28. Rottbollia. Linn. Hard-grass. 



Calyx of two valves; valves unilateral, sometimes combined 

 into one, 1 — 2-flowered. Corolla 2-valved, awnless, imbed- 

 ded, as it were, in a thick rachis. — Named from Rottbbl, a 

 Professor of Botany at Copenhagen. 



Triandria. Digynia. 



1. R. incurvata, Linn. Sea\Hard- grass. Spike cylindraceo- 

 subulate; calyx 2-valved, valves united at the base. Br. Fl. 

 ed. 3. p. 57. E. Fl. v. i. p. 175. E. Bot. t. 760. 



Sea-coast, in salt marshes. Near Irishtown, Portmarnock, banks of 

 the river Lee, below Cork, South Isles of Arran, and other places, 

 abundant. FL July, Aug. 0. — From two to six or eight inches high, 

 more or less curved, especially in the curious spike. 



The two following Genera were left out by mistake in their proper places. 

 Anthoxanthum should have been placed before Alopecurus, and Nardus after 

 Lolium. 



29. Anthoxanthum. Linn. Vernal-grass. 

 Calyx of two valves, glumaceous, l-flo\vered. Corolla double, 



