Gastridinm.] TRIANDRIA — DIGYNIA. 15 



* Flowers panicled. (Tab. II. f. 18. d.) Panicle often very 

 compact, so as to appear spiked, (Tab. II. f. 18. c.) 



-j- Calyx sijigle-Jloioered. 



14. Alopecurus. (Tab. I.f.3.) Ca/. 2-vaIved: valves nearly- 

 equal, mostly connate at the base. Cor. of 1 valve with an awn 

 rising from the base — Named from aXoj'ryi!^, nfox, and ousa, a tail. 



15. PiiALARis. (Tab. I. f. 4.) Cal. of two, erect, carinated 

 valves, larger than the two-valved, at length, indurated corolla, 

 which is accompanied at the base by one or two valves of other 

 imperfect florets. Fruit invested with the hardened corolla. — 

 Named from cpa7,og, shining ; — Canary-seed being very glossy. 



16. Ammophii.a. (Tab. I. f. 5.) Panicle spiked. Cal. of 2 

 nearly equal, keeled valves, longer than the corolla, surrounded 

 at the base by a tuft of hairs. — Named from aiiu,o'„ sand, and 

 (piXoQ, a lover. 



17. Phleum. (Tab. I. f. 6.) Patiicle com\)nct. Ca/. of 2 valves 

 nearly equal, acuminate, or mucronato-aristate, including the cor. 

 of 2 awnless valves. Seed free. — Named from (p?.tog, or ^Xsojg, 

 formerly applied, as is supposed, to the Reed-mace {Typha'), to 

 which our grass bears some distant resemblance. 



18. Lagurijs. (Tab. I. f. 7.) Panicle spiked. Cal. glumes of 

 2 fringed valves, lengthened into feathery awns. Outer valves 

 of the cor. bifid at the apex, with a dorsal awn. — Named from 

 y.ayoior, a hare, and ovoa, a tail. 



19. MiLiUBi. (Tab. I. f. 8.) P«?i2V/e spreading. Ca/. 2-valved, 

 flattish, herbaceous, rather acute, longer than the cor. Fruit in- 

 vested with the permanent hardened cor. — Named either from 

 mille, a thousand, on account of its fertility ; or, according to 

 Theis, from the Celtic mill, a stcne, from the hardness of its fruit. 



20. Gastridium. (Tab. I. f. 9.) Panicle contracted, spiked. 

 Cal. 2-valved, acute, ventricose at the base, membranaceous, 

 much longer than the cor. Cor. of 2 valves and investing the 



peculiar names have been given to its different parts, which it may be desirable 

 to explain. The floral coverings, as they are termed, are (/lumaceous or chafty. 

 Tiie outer of these which do not immediately contain stamen on pistil, and 

 are composed of one (See Tab. II. f. 12. a.) two (Tab. I. f. 3. a.) or three 

 pieces, are here called the cah/x, and the pieces the glumes or valves, and they 

 seem to hold the place of a calyx in the two-valved, single-flowere<l genera; 

 but often they include many flowers, (Tab. I. f. 23. a.) and with justice are 

 considered bracleas. These ^lessrs Brown and Liiidley call glumes. Tiie inner, 

 generally of a thinner texture, is here, ashy Linnpeus and Smith, named corolla ; 

 its pieces, one (Tab. I. f. 3. b.) or two (Tab. I. f. 6. &. ) in number, glumes 

 or valves. This is tiie true perianth and so called by Brown, {palece, by iJeauv. 

 and Lindl.) Within this, and at the base of the germen, are generally 2 colla- 

 teral, rarely 1, small .scaies, ( Tab. 11. f. 18. a.) nectargof Linn, and Sm. Tlie 

 stem is mostly hollow, and jointed, and called a culm. It bears at each joint 

 a leaf, wiiich is sheathing at the base and sjdit upon one side, and at the top 

 of the sheath, just where it expands into tlie blade, is frequently a small pro- 

 jecting membrane, called a ligule (Tab. II. f. IS. b.) 



