HEXANDRIA, MONOGYNIA. 223 



$26. ERYTHRONIUM. L. (Dog's-tooth Vio- 

 let.) 



Corolla subcampanulate, petals 6, reflected, 

 the 3 interior usually furnished with a callous 

 denture on each side near the base, and a nec- 

 tariferous pore. Capsule superior, roundish, or 

 elliptic, substipitate. Seeds ovate? 



Root bulbous; leaves a single pair, sheathing, macu- 

 late; scape 1-flovvered, flower cernuous, yellow, rarely 

 white, or violaceous. 



Spectes. 1. E. americannm. Kex, in Bot. Mag. 1113. 

 Hortus Kewensis, 1. p. 248. E. lanceolatinn. Purshj 1. p. 

 230. Leaves thickly covered with superficial punctures; 

 petals oblong-lanceolate, points obtuse, interior ones bi- 

 dentate near the base; style clavale, stigma entire, inter- 

 nally pubescent. Hab. Throughout the Atlantic states, 

 on ilie lowest alluvial banks of streams. Oes. Root a 

 small tunicated, brown, ovate bulb. Leaves elliptic-lan- 

 ceolate, with somewhat acuminated callous points, mar- 

 bled with green and brown (after the manner of the ge- 

 nus). Petals spotted near the base, reflected, inner ones 

 ovate-lanceolate with a longitudinal groove on the inner 

 side communicating at the base with a minute nectariferous 

 cist, on either side of these petals there is an auriculated 

 crisp tooth embracing the filaments, (nothing like a gland 

 or callosity at the base.') Style attenuated downwards, 

 clavate, 3-sided, tubular or perforated; stigma entire, 

 mar-rin crenulate. Germ elliptic. Capsule substipitate. 

 2. grandiforwn^ Pursh. A species not satisfactorily de- 

 fined. 



3. * albidum. I^eaf impunctate; petals linear-lanceolate, 

 points obtuse, inner ones without dentures, subunguicu- 

 late; style filiformly attenuated downwards; stigma' trifid, 

 lobes reflected, internally papillose. Hab. Throughout 

 the western states and territories into Upper Louisiana, 

 and on the banks of the Missouri, where no other species 

 appears to exist. Dr. VVray of Augusta informed me of 

 the existence of a white Erythromum in the vicinity of that 

 place, which is also probably the present species; the colour 

 is cons' antly white, sometimes with an external shade of 

 blue; the leaf rather short; petals often near an inch and 

 a half long, scarcely 2 lines wide, with the germ elliptic. 

 There appears to be another yellow flowered species con- 

 founded with E. amcricanum, and nearly allied to the pre- 



