HEXANDRIA— MONOGYNIA. Aconis. 157 



Root much like the last. Stem 2 feet high^ round and smooth. 

 Leaves of a rather lighter green than the preceding. Fl. from 2 

 to 5 on each stalk, very faintly scented, more cylindrical and 

 elongated than in C. Pohjgonatiun, with smaller segments, 

 scarcely folding over each other. Filaments downy, as first re- 

 marked by Professor Hooker. According to the same authority, 

 and that of Redoute, the berries are of a blueish black, as de- 

 scribed in Fl. Brit., though Tragus paints them red. I cannot 

 now trace the origin of the same mistake in Engl. Bat. 



197. ACORUS. Sweet Flag. 



Linn. Gen. \7'2. Juss. 25. Fl. Br. 373. Lam. t. 252. Gccrtn.t. 84. 

 Calamus aromaticus. Mich. Gen. 43. ^31. 



Nat. Ord. Pipen'tce. Linn. 2. Aroidea. Juss. 7. 



Cal. none. Spadix naked, nearly cylindiical, simple, covered 

 with sessile flowers, deciduous. Pet. 6, inferior, equal, ob- 

 tuse, concave, lax, rather thicker in the upper part ; pro- 

 tuberant at the back. Filam. thickish, erect, about the 

 length of the petals, and alternate with them. Anth. of 2 

 roundish lobes, terminal. Germ, superior, sessile, elHptic- 

 oblong, the length of the stamens. Style none. Stigma 

 hemispherical, obscurely 3-lobed. Caps, triangular, ab- 

 rupt, membranous, of 3 cells, not bursting, ^ct/i" several, 

 ovate-oblong. 



Aromatic smooth herbs, with creeping, horizontal, scarred, 

 woody roo/5. Stem wone. Z/^«t;6'5 radical, equitant, sword- 

 shaped, pointed. Stalk solitary, radical, central, com- 

 pressed, quite simple, bearing one lateral spadix, sur- 

 mounted by a leafy point. Only 2 species are known ; 

 the exotic one, brought from China, is hardy in our 

 gardens. 



1. A. Calamus. Common Sweet Flag. 



Leafy summit of the flower-stalk rising high above the 

 spadix. 



A. Calamus. Linn. Sp. PL 462. IVilld. v. 2. 199. Fl. Br. 3/3. 



Engl. Bot. V.5. t. 356. Woodv. Med. Bnt. t. 1 73. Burton t). 3. 3 1 . 



Leers 86. t. 13. f. 12. Fl. Dan. t. 115S. 

 A. n. 1307. Hall. Hist. v. 2. 164. 

 A. verus. Bauh. Theatr.626.f. 

 A. verus, sive Calamus officinarum. Raii Sijn.437- 

 A. verus, officinis falso Calamus. Ger. Em.62.f. 

 Acorum. Matth.Falgr.v.l.lO.f. Camer. Epit.5.f. 

 Typha aromatica, clava rugosa. Moris, v. 3. 246. sect. 8. /. 13./. 4. 

 In watery places, about the banks of rivers, but not very general. 



