TETRANDRIA. TETilAGYNIA. zs 



P. LUCENS. Mr. Leaves Ions-lanceolate, tapering to a, petiole at base; spikes Imj, cylindrical.- 



Synon. P. ocuminatum, of the German Botanists, according to Mr. Sciweinitz. 



Fl. Middle of August. Fr. mat. 



Hub. Rapid waters of the Brandy wine; frequent. 2 to 4 feet long: flowers greenish brown. 



P. CRISPUM.' Ph. Leaves mostly alternate, sub-amplexicaiil, oblong-ovate, undulate; spikes faw-flowered. 



Fl. Middle of August. iV. mat. 



Hab. Hapid waters of the Brandywine: frequent- 1 to 3 feet long: flowers reddish brown. 



Obs. This species s»ems to lie on the bottom, totally submersed in swift runnln:; %vater. The leaves are 

 very obscurf ly if at all serrate, but are undulate and curled; and the spikes are'mostly lateral. I at first 

 siippoi-ed It to be P. perfoliatum, of .-!fr. and PA.— but Mr. Schweinitz pronounces it. with more probabil'tv 

 y. crisjmm. It certainly, however, does not well suit the description of ei<Aer, in Pursh. 



CLASS V. PENTANDPJA. 



OHDER, MOSfOCS-rifSA. 

 A,. Flowers Inferior, a. Corolla monopctaloua. f Seeds nahed. 



75. PULMONARIA. Natt. Gen. 173. 



[Lat. pKtao.plur. Pulmones, the Lungs; from its supposed virtue in pu!monary diseases.] 

 Cal. 5 toothed, prismatic-pentagonal. Cor. funnel-form, somewhat 5 lobed; orifice open. 



P. viRGiNiCA. Ell. Glabrous; leaves lanceolate-ovate, and oval; flowers fasciculate, terminal; corolla long, 



'F«/g-o— Virginian Cowslip. Lung-wort. 



Fl. Latter end of April. Fr. mat. Beginning of June. 



Hab. Rich, moist, low grounds: along Brandywine: frequent. About2 feet high: flowers purplish blue. 



Obs. Rather a handsome plant, and often introduced into our gardens. The leaves finally become a 

 broad oval, in form; and some of lliem ahnost orbicular. 



76. LITHOSPERMUM. Nult. Gen. 170. 



[Gr. Litkos, a stone, and Sperma, seed; from the stony hardness of its seeds.] 



Cal. 5 parted; divisions subulate. Cor. funnel-form, 5Iobsd; orifice open, naked. Stignmhind. 



L. ARVENSE. Ph. Plant hispi<I; seeds rugose; corolla scarcely longer than the calyx; leaves lingulata. 

 Pw/g-o— Stone-weed. Corn Gromwell. 



Fl. Beginning of IMay. Fr. mat. Beginning of June. 



Hab. Grain and pasture fields: frequent. 12 to ISinches high: Rowers milk-white. 

 Obs. This rigid, flinty-skinned plant, is beheved to be a foreigner. 



77. CYNOGLOSSUM. mat. Gen. 172. 

 [Gr. Kyon, kynos, a dog, and Ghssa, a tongue; from a fancied resemblauce i:i iis leave*.] 



Cal. 5 parted. Cor. funnel-form; orifice closed by 5 connivent processes. Seeps nin.Ted to the sty!*- 

 C OFFiciiVALE. Sm. Fl. Brit. Covered with soft pubescence; leaves lanceolate, sessile; racemes paniculate 

 Fu/g-o— Common Hound's-tongue. 



Fl. Latter end of May, and after. Fr. mat. Latter end of July. 



Hab. Roadsides, and about houses: Cheyney Jefferis's; Jno. Taylor's mill: rather scarce. About 2 feet high- 

 Obs. A foreigner, but becoming naturalized. The flowers are usually reddi.^h brown; but T found specinen-^ 

 at John Taylor s mill, with milk white flowers, as noticed by fVilld. The fresh plant has a peculiarly di^-' 

 agreeable smell resembling that of mice-nests; remarked by Dr. Smith— who says, "tota planta odor/ mn- 

 rino tetens. 1 he circumstance of this odor may have given rise to an opinion, ('which I believe i« unfotind- 

 ed,) that the plant will expel rats. It dissipates as the phmt dri.es. The medical virtues of this s'n-ries ar^ 

 'i)eiievedtobe very trifling; though it has been reconmieuded in scrophulous ulcers, to be u«ed in the fonr 

 «1 cataplasm. "' 



C. ABiPLEXicAULE. BIx- Hirsute; leaves oval-cblor,;r, upper ones amplexicau!: corymb tprminal, leafless, 

 Synon. C. virginicum. IVilld. and Ell. f w/go— Wild Comfrey. Virginian Hounds-tongue" 



F/. Last of May. Fr. wa!. Beginning of August. 



Hab. Rich woodlands: very common. 13 inches t.T 2 feet high: flowers bluish wiiitf;. 



Obs. The root of this species is mucilaginous; and is somewhat rocuiar as a r<ectora' modioi^e. itfe 

 sometimes, also, used in cataplasms, tor sprains.. &c. 



