SYNGENESIA SUPEKFLUA. Aster. 



Stem-forms a loose panicle with pendulous branches; 

 the disk turns brown. 



559 



637. DONIA. Jit. kew. ed. 2. t. 4. p. 82. 



D. herbacea ; foliis oblongis amplexicaulibns serratis, 

 calyciuis squamis apice filiformibus revoluto-squar- 

 rosis. 



In open prairies, on the banks of the Missouri. AI. Lew- 

 is. % . Aug. Sept. V. s. in Herb. Lewis. ; v. v. 

 cult. Flowers yell<iw, resembling those of Inula. 

 The whole plant is viscous, and has a strong resinite- 

 rous or balsamic scent. 



Caulis erectus, teres, albidus, coryraboso-ramosus. Rami 

 alterni, angulati, api.e uni- aut triflori. Folia alterna, 

 basi diiatata, amplexicaulia, oblonga, acuta aut obtu- 

 sa, serra.a, glabra, utrinque squamulis punctiformi- 

 bus resinifens obsita. Flures 1 — .3. in summitate ra- 

 niulorum, corymbosi, flavi, ante explicationem co- 

 piose resiniferi. Calyx hemisphaericus, arete imbrica- 

 tus : Squamis apice filiformibus, revolutis et quasi 

 caput Medusae referentibus. Flosculi radii lineari- 

 lanceolatae, acutae. Semina oblongo-obovata. Pappus : 

 aristis 2 — 4.deciduis. Receptaculuin plaiiUixi, nudum, 

 favulosum. 



It approaches near to Jster gluiinosus Cav. ic. 2. p. 53. 

 t. \QS. which is the Donia glntinosa Jit. kew. ed. 2. 

 t. 4. p. 82. which I distinguish by the following dia- 

 gnosis : Don'ui glutinosa : frutescens ; foliis oblongo- 

 obcuneatis sessilibus serratis, calycinis squamis linea- 

 ribus erectis. 



squarrosa. 



638. BCEBERA. JViUd. sp. pi. 3. p 2125. 



, B, caule paniculato, foliis oppositis subbipinnatis glabris 

 acutis. — Willd. sp. pi. 3. p. 2125. 



Tagetes papposa. Mich.Ji. amer. 2. p. 132. 



Tagetes pumila. Hort. pisan, 



Dyssodia glandulosa. Cav. demonstr. lot. p. 202. 



On the overflowed banks of the Missouri and Missis- 

 sippi. O. Aug, ISept. v.s. Flowers small, golden- 

 yellow. 



chrymnthe- 

 ■moidfs. 



