16 TUIANDUIA DIGYNIA. IHolcUS. 



fruit outer ono tnostlywith a dorsal awn. — Named from y^ts-Tj/S/ov, 

 a ventricle, or little swelling, as is seen at the base of the calyx. 



21. SrirA. (Tab. I. f. 10.) Panicle erect, compact. Cat. of 

 2 valves, longer than the cor. Cor. cartilaginous, involute, ter- 

 minated with a very long twisted awn, jointed at the base, and 

 finally separating at tlie joint. — Named from c-'j-r,, tow, or 



Jlax, from the flaxen or silky appearance of the common species 

 of the gardens. 



22. PoLYPoGON. (Tab. I. f. 11.) Panicle compact, somewhat 

 spiked. Cal. of 2 valves, equal, larger than the cor., awned at 

 the.extrcmity. Cor, of 2 unequal valves ; the outer obtuse, awned 

 at the very extremity. — Named from toXu, many, and crwywi/, a 

 heard: from the bearded appearance of the panicle. 



23. Calamaorostis. (Tab. I. f. 12.) Panicle loose. Cal. of 

 2 valves, longer than the 2 valves of the corolla, which is sur- 

 rounded by hairs at the base, and has the outer valve awned. 

 — Named from xaXafioc, one of the Palms, and a^ffooT/ca genus 

 of grasses ; a barbarous denomination, and only admissible on 

 the ground of its being now generally adopted. 



24. Agrostis. (Tab. I. f. 13.) Pa/»'c/e loose. Cal. o? 2 

 unequal glumes, longer than the cor. Corolla of 2 unequal 

 valves ; the inner sometimes wanting, the outer with or without 

 an awn. Seed free. — Name ; given by the Greeks to Grasses, 

 from aygOQ, ?l field, because they are so abundant in open places. 



ff Calyx 2- or rarely Z-fioicered. 



25. Catabrosa. (Tab. I. f. 14.) Panicle spreading. Cal. of 

 2' valves, membranaceous, very obtuse, much shorter than the 

 spikelets, 2- or 3-flowered, often with a 4th imperfect floret. Cor. 

 2-valved, coriaceous, membranous only at the extremity, rib- 

 bed, truncated, awnless, erose, nearly equal. — Named from 

 ■/.uTuS^ujGtc, a gnawing; from the eroso extremity of the glumes. 



26. Ai'ra. (Tab. I. f. 15.) Cal. of 2 valves, unequal, con- 

 taining two perfect florets. Cor. two-valved, membranaceous 

 and thin ; the outer one awned (rarely awnless) near the base. 

 Friiit free. — Named from ay^w, to destroy. This name was an- 

 ciently applied to the Lbliiim temulentum, (bearded Darnel,') on 

 account of its injurious eff"ects : .and now to the present genus 

 of grasses, thougii having little in common with it. 



27. Melica. (Tab. I. f. 16.) Pa«?c/e lax. Co/, of 2 valves, 

 about 2-flowered, with the rudiment of a third floret. Cor. 

 2-valved, awnless. Fruit free, covered by the cartilaginous 

 cor. — Name, Melica or Melliga, given in Italy to the Sorghum 

 vulgare, on account of the sweet flavour of its stem {mel, ho7iey): 

 applied by Linnsus to this somewhat allied genus. 



28. HoLcus. (Tab. I. f. 17.) Pomc/e lax. C«Z of 2 valves, 

 nearly equal, 2-floAvered. Cor. 2-valved ; upper floret with sta- 



