DIDYNAMIA GYMNOSPERMIA 34 i 



Root perennial, creeping. Stem 12 to 18 inches high, simple, or sparingly 

 branched, rough ish-pube scent, quadrangular, with the angles obtuse, and sides 

 concave. Leaves an inch and half to 4 inches Jong, and 3 fourths of an inch to an 

 inch an half wide, coarsely serrate-dentate, with an entire long narrow cuneate 

 base, smoothish, and, with the stem, often dark purple. Flowers minute, in small 

 dense verticils. Calyx shorter than the corolla ; segments acute, but not spines- 

 cent. Corolla white. Akenes projecting above the calyx, when mature. 



Hob. Swamps, and moist woodlands : frequent. FL July. Fr. Sept— October. 



Obs. This is said to be a prominent article in the Materia Medica of certain 

 German Empirics, in the good city of Lancaster,— who prescribe the infusion as 

 a sovereign remedy for what they term a "dry Liver 11 (Nodus vindice dig?uis\)— 

 an infirmity which, they allege, afflicts a large proportion of those credulous 

 persons who resort thither,— or, being unable to go, despatch a trusty messenger 

 with a vial of their urine. 



2. L. sisttatus, Ell. Leaves oblong-lanceolate, sinuate-dentate, low- 

 er ones pinnatifidly incised ; calyx 5-toothed; teeth subspinescently acu- 

 minate, longer than the akenes. Benth. Lab. p. 187. 



L. europmus. Mx.Am. I. p. 14. Ptirsh, Am. 1. p. 16. BigeL Bost. 



p. 9. Beck, Bot. p. 271. Eat. Man. p. 215. var. angustifolins. 



Torr. Fl. 1. p. 21. Ejusd. Comp. p. 21. 



L. americanus. Jlfuhl. Catal.p.S. Bart. Phil. 1. />, 12. 



Also, L. vulgaris. JSTutt. Gen. I. p. 15. Not? of Per** 



Also y L. exaltatus. Puvsh, Am. Suppl p. 727. Elh Sk. I. p. 20, 



J\Tutt. /. c. Not of Linn. 



Also, L. angustifolius. Ell. I. c. Nutt. I. c. 

 Sinuate Lycopus. Vulgd — Water Horehound. 



Root perennial. Stem 1 to 2 feet high, branching, smoothish, acutely quadran- 

 gular, with the sides concave. Leaves an inch and half to 3 inches long, and 1 

 third to 3 fourths of an inch wide, tapering at each end, narrowed to a petiole at 

 base, smoothish, punctate, somewhat sinuate-dentate, the teeth long and distant. 

 Ftotcers very small, in dense verticils. Calyx about as long as the corolla, scab* 

 rous; segments with a prominent midrib, terminating in a sharp spinescent aou- 

 mi nation. Corolla white, often tinged with purple, pubescent within. Stamens 

 shorter than the corolla. Akenes compressed, triquetrous-cuneate, obliquely 

 truncate, shorter than the calyx. 



Hob. Moist low grounds : frequent. Ft. July. Fr. September. 



Obs. This seems to be quite distinct from my European specimens of L. euro- 

 pczus. When my Catalogue was prepared, I mistook it for Pursh's var. quer- 

 cifolius, of the preceding species. One or two additional species, though not 

 very well authenticated, are enumerated in the U. States. 



3. Monarda Tribb. Corolla bilabiate. Stamens 2 fertile, ascending; the upper 

 pair abortive. Anthers linear, with two contiguous cells, divaricate at base, and 

 confluent at apex,— or halved, and the ceils separated by a long linear vonnecti- 

 vum which is transversely articulated with the summit of the filament. Monar- 

 r>B«. Benth. 



29» 





