48 TRIANDRIA. DIGYNIA. 



nifa. El. This genus appears to be very closely allied to 

 Panicum, and somewhat to Milium, particularly to the 

 M. amphicarpon of Pursh. The JMilium viUosum of Ja- 

 maica may probably belong to this genus. 



73. PHALARIS. L. (Canary-Grass) 



Calix l-flowered, 2-valved; valves subovate 

 or lanceolate, carinate, equal and nerved, in- 

 cluding the corolla. Corolla 2-valved, mostly 

 hairy at the base. 



Flowers generally in terminal cylindric or ovate spikes. 

 In P. canariensis, the corolla consists of 4 valves, in P. 

 aquatica of 3. 



Species. 1. P- vmritima {Antnda arenaria. Lin.) This 

 species may be considered as intermediate between Anin- 

 da and Phalaris. — On the coast of New-Jersey. Z. Col- 

 lins, Esq. In Europe considered of great importance for 

 arresting and consolidatmg the movable sands of the sea- 

 coast. The rest of this genus is chiefly confined to the 

 south of Europe and Northern Africa (Barbary.) 



74. BRUCHMANNIA. Jacg?mi. Phalaris em- 

 cceformis, L. 



Calix 2-valved, 1-2-flowered, valves semiob- 

 cordate, inflated, equal. Corolla 2-valved, includ- 

 ed within the calix, valves unequal, the dorsal 

 valve setaceously acuminate; one of the fl.)wers 

 often abortive or wanting. 



Culm erect, panicle irregularly spiked, spikelets inter- 

 rupted and subdivided) flowers disposed in 2 rows on 

 oneside of the rachis. (Valves of the calix somewhat mar- 

 gined or slightly carinate, gibbous, and abruptly acute, 

 with scariose margins, in the American plant generally 

 1-flowered, corolla glumes unequal, the dorsal valve con- 

 vex, terminated by a short setaceous mucrone; smaller 

 valve flat, rather acute; stigmata long, filiform and hir- 

 sute.) 



Species. 1.^. erucaformis. Around Fort Mandan, on 

 the Missouri, in alluvial soil. Flowers in July. There 

 is only as yet one species of this curious genus discover- 

 ed, there being no apparent distinction observable betwixt 

 the American plant and the one figured and described 

 by Jacquin in his Hortus Schaenbrwrnensis. It is equally 



