CL. III.] TRIANDRIA D1GYNIA. 75 



1. C. ddctylon. Creeping Dog' s-tooth-grass. Spikes four or five, 

 crowded ; husks smooth. Root creeping, rough : straws creep- 

 ing, round, smooth : leaves tapering, hairy, with long, smooth 

 sheaths : flowering branches about six inches high, each bearing 

 four or five linear spikes. Perennial : flowers in July and Au- 

 gust : grows on the sandy shores of Cornwall. Eng. Bot. vol. xii. 

 pi. 850. Eng. FL vol. i. p. 95. 122. 



21. DIGITA'RIA. FINGER-GRASS. 



Calyx one-flowered, of three very unequal, awnless scales ; 

 the outer minute, triangular ; the next largest, as long as the 

 corolla ; the inner opposite to the latter, small, lance-shaped. 

 Corolla of two unequal, elliptical, awnless valves. Filaments 

 hair-like, rather longer than the husks ; anthers short, cleft at 

 both ends. Germen egg-shaped. Styles thread-shaped, about 

 the length of the stamens ; stigmas short, feathery. Seed egg- 

 shaped, closely invested by the hardened polished husks.- 5 

 Named from digitus, a finger. 37. 



1. D. sanguindlis. Cock's-foot Finger-grass. Leaves and their 

 sheaths somewhat hairy ; flowers in pairs ; calyx rough at the 



edges of its larger scale only. Root fibrous : stems decumbent 



and rooting at the base, about a foot long, striated, smooth : leaves 

 broad, pointed, striated, sprinkled with warts : spikes from three 

 to eight, crowded at the top of the straw : flowers dark purple, 

 erect : larger chaff-scale five-ribbed, with rough edges. Annual : 

 flowers in July and August : grows in various parts of England, 

 in sandy cultivated fields : rare. Eng. Bot. vol. xii. pi. 849, Pa- 

 nicum sanguinale. Eng. Fl. vol. i. p. 97. 123. 



2. D. humifusa. Smooth Finger -grass. Leaves and their sheaths 



smooth ; flowers egg-shaped, downy. Root fibrous : stalks 



spreading : flowers purple. Annual : flowers in July and Au- 

 gust : grows in sand at Weybridge, in Sussex, where it was found 

 by Mr. Borrer. This and the above have probably been introduced 

 into Britain with foreign corn. Eng. Bot. Suppl. pi. 2613. Brit. 

 Fl. 4th ed. p. 54. 124. 



22. PA'NICUM. PANICK. 



Calyx two-flowered, of two very unequal, ribbed chaff- scales, 

 the inner much larger, elliptical, generally awnless. One 

 flower perfect ; the other either neutral or stameniferous. Co- 

 rolla of the former of two unequal, membranous, acute husks ; 

 in the latter of one or two husks, the outer of the texture of the 

 calyx, concave ribbed, sometimes awned, the inner Hat, awnless, 

 often wanting. Filaments hair-like, as long as the corolla; 

 anthers short, cleft at both ends. Germen egg-shaped. Styles 

 distinct, awl- shaped, as long as the stamens ; stigmas feathery, 

 short. Seed egg-shaped, flattened on one side, closely invested 

 with the hardened husks. Name uncertain, perhaps from 

 panis, bread. 38. 



1. P. verticilldtum. Rough Panick-grass. Panicle spiked, cy- 

 lindrical, lobed with whorled branches ; flowers in pairs, accom- 

 panied with angular bristles, rough with reversed teeth. Root 



fibrous : straws two feet high, smooth, spreading : leaves lance- 

 shaped, rough on both sides, with long smooth sheaths : stipules 

 of numerous short hairs : calyx pale, with green ribs, smooth -. 



