18 TRIANDRIA — DIGYNIA. [Hordeum. 



Cor. 2-valved, aAvnless : ext. one ventricose ; int. small and 

 flat. Fruit adiiate with the cor. — Name ; /3g/^a, some kind of 

 corn, probably irom /3g/5w, to droop or bend dotvn, as do the 

 spikelt't;?, which are most delicately suspended. 



37. Dactyms. (Tab. II. f. '26.) Panicle with the secondary 

 branches short and very dense, subsecund. Cal. of 2 unequal 

 valves, the larger one keeled. Cor. of 2 lanceolate scarcely awned 

 valves, enclosincf the fruit. — Except in habit this genus is scarce- 

 ly distinguishable from Feslvca. — Named horn oay.TvXor, Vi finger. 



38. Cynosurus. (Tab. II. f. 27.) Pa«/c/e spiked. CV//. 2-valved, 

 equal, awned, having a pectinated invohicre. Cor. 2-valved, valves 

 linear-lanceolate; int. awned below the extremity or awnless. — 

 Named from xuw>',arflr7<7, and cusa, a tail; from the shape of its spike. 



39. FnsiucA. (Tab. II. f. 28.) Panicle lax, or coarctate. 

 Cal. of 2 unequal valves. Cor. of 2 lanceolate valves : ext. acu- 

 minate or awned at the summit. — Named from the Celtic word 

 Jest, according to Theis, which signifies^o^/, pasturage. 



40. Broml's. (Tab. II. f. 29.) Panicle lax. Cal. of 2 valves, 

 many flowered. Cor. of 2 lanceolate valves ; ext. one awned 

 below the bifid extremity. (Inner valve generally fringed at the 

 folds. Sm.') — Named from /3^&j,aor, given by the Greeks to a 

 kind oi oat, and that again from (3 pu) /mi, food. 



41. A VENA. (Tab. II. f. 30.) Panicle lax. Cal 2-valved, 2-, 

 or more, -flowered. Cor. of 2 lanceolate valves, firmly enclosing 

 the seed : ext. one bearing a twisted dorsal awn; upper florets 

 often imperfect. — Name of doubtful origin: the ancients ap- 

 plied it to the Brome-grass. Oat, Theis tells us, comes from 

 the Celtic Avord atan, the Oat; and that again from eta7i, to eat. 



42. Arundo. (Tab. II. f 31.) PowzWe loose. C«/. 2-valved, 

 luiequal, many-flowered. Cor. of 2 very unequal valves ; all, ex- 

 cept the lower and imperfect one, surrounded by a tuft of hairs. 

 Fruit free, covered by the cor. — Name ; Arunclo, the Latin for 

 a Peed; " ab arendo, quod cito arescat." De Theis says it 

 comes from am, the Celtic word for water. There is abundant 

 room for the exercise of imagination in the derivation of names. 



** Floicers .<:piked. {Solitary fioicers, or spikelets, sessile upon 

 a common stcdk or rachis. — Tab. II. f. 42. e.f.g.) 



f Floicers or spikelets distichous, or itiserted 07i all sides. (Tab. 

 II. f. 42. e.f.) 



t 



43. Elyjius. (Tab. II. f. 32.) .S/j/Me/s 2 or 3 from the same 

 point. C(d. 2-valved, lateral (botli the valves being on one side of 

 the spikelet), 2 — 3-flowered, all perfect. Cor. 2-valved. — Name, 

 s\-jfj.oc, givv-n by the Greeks to the Panic-grasses, perhaps be- 

 cause they grew abundantly about Fhjma in Greece. {TMis?) 



U. Hordeum. (Tab. II. f. 33.) Cc//. lateral, 2-Yalved, single- 



