CUNT. V. 15 



421. DiscoLENTA Raf. dili*. 420. stylis 2, 

 Sem. discoformis iitrinqiie latere concavo. — 

 Type, D. lapathifolia and my scabra. 



422. Heptarina Raf. (7 iiiasc) diff. 420. CaL 

 coroUato equalis, Stam 7, bina interna latere 

 ovario, stylis 2. Jlores racemosis. — Type 11. 

 orientaUs. 



423. DiocTis Raf. 1817 (2 and 8) diff. 420. 

 Stam. 8, internis 3 minor, stylis 2. — I'yP^^ ^^' 

 pensylvanica, and 3 Sp. of my fl. Ludov. bi- 

 corne^ maculatiim, vernum, besides equiseii- 

 folia of Egypt. 



424. MiTESiA Raf. (mildness) diff. 420, stylo 

 1 bifido, ineq. Sem. ovato subtrigono, Stam 8. 

 — Types M. albi flora, hirsuta, punctata El- 

 liot and my 31. dlvergens, M. jnontana SfC. 



425. PoGALis Raf. (beard diff.) diff. 420, 

 stam 6, Stylis 3, Sem. vix. lenticularis — Types 

 P. harhata, tinctoria, tomentosa, &lc. This 

 concludes tEe reform of Polt/gonuni^ with my 

 Calaciniim 103, in all 22 Genera. If all those 

 with lenticular seeds and Slid calix have been 

 commonly deemed Fersicaria, the difference 

 that 1 have shown, prove that at least Sub 

 Genera are required. I am not yet sure to 

 have exhausted this Genus, and may return to 

 it if needful. I have in my herbal many new 

 species of it as yet, some of vthich I add. 



420. Polygonum fasfigiatum Raf. caule 

 erecto ramoso fastigiato fuscato, fol. lin. lan- 

 ceol. adpressis, ochreis laceris, axillis unifloris 

 — annual, Alleghany mts. 



427. Polygonum crasslcaule Raf. caule 

 crasso striato diffuso ramoso, ramulis brevis di- 

 varicatis, fol. parvis subpotiolatis oblongis, ob- 

 tusis, axillis l-3Horis — Perennial, Alleghany 

 mts. stem pedal rigid, near P. erect urn. 



