CL. III.] TRIANDRIA DIGYNIA. 75 



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



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



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 August: grows on the sandy 

 shores of Cornwall. Eng. Bot. vol. xii. pi. 850. Eng. Ft. 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. 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, Panicum 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 August : 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. Corolla 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 flat, 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. verticillutttm. Rough Patrick-grass. Panicle spiked, cylindri- 

 cal, lobed with whorled branches ; flowers in pairs, accompanied 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, 



