Ranunccuis. RANUNCULACE^. 15 



1, H. triloba (Chaix): leaves broadly cordate, 3--5-lobpd; lobes omire.— 

 Chaix in Vill. Ddph. 1. p. 336; DC. prndr. 1. p. 22 ; Pur.sh, Jl. 2. p. 391 ; 

 Hook. Jl. Bor.-Am. 1. p. S. Anemone Hepalica, Linn. ; Michx. ! jl. 1. 



V- 319- „ . 



a. obtusa : leaves 3-lobed ; lobes roundish, obtuse, Pursh, I. c— H. Ameri- 

 cana, Ker, in bat. reg. t. 387 ; J) C. I. c. 



0. acuta: leaves 3-5-lobed; lobes spreading, acute. Pursh, Jl. I. c.—H. 

 acutiloba, J)C. I. c. 



Canada! to South Carolina; very common. ^\tc\\n, JJ on g a rd. March- 

 April. — Leaves coriaceous. Petals and scapes villous. Involucre villous; 

 segments ovate, mostly obtuse. Sepals oblong, obtuse, blue, pale purple, 

 or white. 



4. ADONIS. Linn. ; DC. syst. 1. p. 220. 



Sepals 5, appressed. Petals 5-15, with a naked claw. Achcnia spicate 

 upon the elongated torus, tipped with the short style. — Herbs with pin- 

 nately-parted cauline leaves, the segments linear and numerous. Flowers 

 solitary on the extremity of the stem or branches, yellow or red. 



1. A. autumnalis (Linn.): calyx glabrous; petals 6-8, concave and con- 

 nivent, a little longer than the calyx; carpels somewhat reticulated, collected 

 into an ovate head, crowned with a very short style ; stem branched. DC. 

 prodr. 1. p. 23; Hook.fi. Bor.-Am. \.p. 9. 



Labrador, Hooker; near New Orleans, Mr. Teinturier ! Banks of the 

 Mississippi, Nuttall ! " Genesee Flatts" [New-York,] v. s. in herb. 

 Muhl. (l)-— Leaves three times compound, the segments scarcely a line wide. 

 Flowers bright scarlet, as large as in Ranunculus acris. 



Tribe II. RANUNCULE^. DC. 



Petals with a small nectariferous scale or gland at (he base inside* 

 Anthers cxtrorse. Seed erect, or sometimes suspended. 



5. RANUNCULUS. Linn.; DC. syst. 1. p. 231. 



Ranunculus &. Casalaa, A. SLHil. 



Sepals 5. Petals 5 (sometimes 10 or more), with a nectariferous scale or 

 glandular spot on the inside of the claw. Stamens numerous, or sometimes 

 few. Achenia ovate, pointed, compressed, disposed in cylindrical or round- 

 ish heads. Seed erect (rarely suspended).— Annual or perennial herbs. 

 Leaves mostly radical, the cauline ones at the base of the branches and pe- 

 duncles. 



§ 1. Carpels transversely wrinkled : petals white : claw yellow, with 

 a conspicuous nectariferous pore.— Batrachium, DC. 



\. R. aquatilis (Linn.) : stem floating ; submersed leaves filiformly dis- 

 sected; eraersed ones 3-parted, with cimeiform dentate lobes; petals ob- 

 ovate, exceeding the calyx.— Pursh, Jl. 2. p. 395 ; DC. prodr. 1. p. 26 ; Hook. 

 Jl. Bor.-Am. I. p. 10.; Darlingt. ! Jl. Cest. ed. 2. p. 327. 



