232 PENTANDRtA« MONOGYNIA. datura.^ 



persistent. Corolla infutidibuliform, plicate. Capsule 

 ovate, 2-celkd, 4-vaIved; ceils 2-parted. Gen. pi. 

 Q,?>2. NutU (t<°/2. I. p. .130. /w^ J. p. 125. Lam. 

 ///.t. CXI II. Uoem. ^J Schult. Ge;?. I. p. 694. 

 Nat. Ord. 'Sola^zj^ Jus s. Thorn-apple. 



D. Stramonium L.: capsule spiny, erect; leaves ovate, 

 smooth, angular-dentate. fV ill d. Spec. I. p. 1008. Smith 

 Fl. Brit. 1. p. 254. Eng. Bot. t. 1288. Pursh Ft. I. p,- 

 141. Big. Bost.^.5\. Elliott Sk. I. p, '275. Tully 

 in Sill. Jour. VI. p. 238. R o e m. &L S c hu 1 1. lY, -p. 305, 



JRoot annual. Stem 2 — 7 feet high, dichotomously branching;, 

 green, somewhat fistulous. Leaves alternate, from the forks 

 of the branches, large ; base somewliat cordate, and unequal. 

 Flowers solitary, axillary, on peduncles about half an inch in 

 length. Calyx acutely 5-angled, 5-cleft at the summit. Co^' 

 rolla white; border 5-toothed. Stamens shorter than the co- 

 rolla ; Jilaments slender, pubescent ; anthers oblong, yellow. 

 Girmen ovate, sulcate ; style as long as the stamen, filiform ; 

 stigma obtuse, bilamellate. Capsule about an inch and a half 

 long, armed with sharp, spreading spines, 2-eelIed. Seeds very 

 numerous, somewhat reniform, black, attached to a central 

 receptacle. 



Hab. In waste grounds, road-sides, &c. ; every where. July- 

 September. Introduced. 



/3. Tatula* : stem and flovrers purple. D. Tatula L. 

 Wi lid. Spec. Lp-'iOOS. P tir s h Fl. ]. p. \4l. Elliott 

 .S/r. I. p. 277. Tully\.c. R o e m, ^ Sc hu 1 1. lY. p. 

 305. 



Hab. With the preceding. Stem fistulous, spotted with purple. 

 Br. Tully, in Silliman's Journal, above quoted, has given 

 an excellent paper on these two species or varieties of Datura. 

 He is of opinion that they are distinct species, though he 

 acknowledges there are no distinguishing characters except 

 colour. It is remarkable, that though they grow indiscrimin- 

 ately together, no intermediate varieties are ever observed. 



161. AZALEA. L. D. Don. 



Calyx 5-parted. Corolla short, campanulate, 5-clefto 

 Sfa??i£H.s eqtuil, shorter than the corolla ; anthers open- 

 ing longitudinally. Style straight, included. Capsule 

 5-celled, 5-valved, opening at the top. D.Don., in 

 Edin. Phil. Jour. VI. p. 48. Azale^^e spp. L. 

 LoisELEURiA D e sv. foum. de Bot. Ann. III. p. 35. 

 • Roem. ^ Sch ult. Gen. 705. Nat. Ord. Rhodo- 

 .r)E>rDR A. J us s. 



