-CAMPANULA. PENTANDRIA. MONOGYNU. 237 



Death. Flowers closely sessile, 1 — 4 in the axil of each leaf. 

 Calyx deeply 3 — 5-parted ; segments lanceolate, very acutCj 

 spreading. Corolla purple, somewhat hypocrateriform ; seg- 

 ments ovate, acute. Stamens about half the length of the co- 

 rolla ; filaments dilated at the base ; anthers blue. Stigma 3- 

 clefl. Cafisule oblong, angular, 3-celled, crowned wi'h the 

 calyx, opening by 3 lateral orifices. Seeds numerous, minute, 

 Hab. In fields, and on dry hills ; common. May — July. 



Sometimes this plant occurs very low and slei)der, producing 

 apetalous flowei-s, with the calyx uniformly 3-cleft. 



3. C. americana L,? leaves ovate-lanceolate, much acu- 

 minate, membranaceous, uncinately serrate; lower ones sub- 

 cordate, with the petioles ciliate ; flowers subsohtary, nearly 

 aessile, in a terminal leafy raceme ; corolla subrotate ; style 

 exserted. fVilld. Spec. I. p. Sj8? 



Root perennial. Stem 2 feet high, simple, terete, smooth. Lower 

 leaves ovate, more or less cordate ; cauline ones attenuate at 

 the base; upper surface sparingly hirsute. Raceme long, leafy 

 below; fiedicela short, clavate, 1 — 2 in the axil of each leaf or 

 bract. Calyx with spreading subulate segments. Corolla 

 blue, flat ; segments oblong, acute. Style one third longer 

 than the corolla ; stigma 3-lobed. 



Hab. On rocks about the Falls of Niagara. Co o fie r. 



This plant agrees nearly as well with C. americana as with 

 C. acuminata^ which two species, I strongly suspect, are not 

 distinct. 



4. C. acuminata M ich.: nearly smooth; stem straight, 

 erect; leaves lanceolate, attenuated to a long point, subser- 

 rate; spike fasciculate, many-flowered; corolla subrotate. 

 JVfic A. F/. I. p. 108. Pursh FlA.^.lb^. Elliott 

 fik. I. p. 202. Roem. i^ Schult. V. p. 11 3. C. nitidti 

 A i t. Kew, ed. 1. I. p» 221 ? nee Purs h FL Supp. II. p. 

 731. 



Root perennial. Stem, erect, 2 — 3 feet high, terete, glabrous. 



Leaves remotely serrate, attenuate at the base, thin, very 



smooth. Flowers generally by threes in the axil of each leaf; 



pedicels very short. Corolla blue. Stamens shorter than the 



corolla. S,'t//e much exserted. Ell. 

 Hab. On the high mountains of Pennsylvania and Virginia. 



Pur s h, 



5. C. aparinoides Ph. : stem slender, branched, acutely 

 Bubtriangular ; angles, with the margin and nerve of the leaves 

 retrorsely aculeate ; leaves linear-lanceolate, smooth above ; 

 peduncles {ew, terminal, filiform, flexuous, 1 -flowered. 

 Pursh Fl.\. ^.\bd. Roem. ir Schult. V. p. ]33. C. 

 erinoidts Muhl. Cat, p. 22. B i g, Bost. p. 1 54. Elliott 



