ASTER COMPOSITAE. 565 



^**'^"- I. TlJBlIIilFL. (;. Asteroideae. 



V. subpaniculatis; involucri squamis lanceolatis acutissimis viscidis laxe imbricalis 

 Iriserialis subpatentibus. — Lewis River ad Rocky mounlains. 



45. AST. BRACTEOLATUS NuU. I. c. - Torr. el Gr. 1. c. f — (cf. no. 42.) - Cauie 

 pulverulenlo-pubesccnlc; foll. linearib. v. oblongo-Iinearib. aculis sessilib. inte- 

 gris; capilulis racemoso-paniculalis in ramulls foliosis plerumq. solilariis; invo- 

 lucri nitidi palentis squamis oblongis acutiusculis, exlimis subfoliaceis. — Lewis 

 River ad Rocky mounlains. 



§. 9. Dumosi Torr. et Gr. I. c. 120. — Capittilis {mediocribus v. par- 

 vis) plerumque racemosis; involucri squamis imbricatis longitudineque 

 inaequalibus membrdnaceo-hcrbaceis, appendicibus viridibus brevibus 

 adpressis v. subpalentibus {nec tamen squarrosis); achaeniis minute pu- 

 bescentibus vel glabriusculis; floscidis radii (12-30) plerumque palHdis 

 V. albis, saepe minutis; caulibus demum ramosissimis racemosis v. pa- 

 nicidatis rarius corymbosis; foliis serratis v. integris {radicalibus spa- 

 thulatis, obovatis vel oblongis), caulinis sessilibus, plerumque basi 

 attenuatis. 



t Capitulis parvis; radils saepe brevibus. 



46. *AST. RACEiMOSUS Ell. Sktch. IL 348. - DC. I. c. 244. — Torr. et Gr. I. c. 127. f. 



47. AST. BALDWIMI Torr. et Gr. I. c. j — Undiq. scabrldo-pubescens: caule com- 

 posllo-panlculalo; capluilis solltarlls v. in ramulls laxe racemulosis; foll. rigldis 

 arcte sessilib. partlm amplexicaulib. integris, supra scaberrimis mucronulatis, 

 caullnis oblongo-llnearlb., ramealib. illlsq. ramulorum brevlb. erectls oblongo- 

 lanceolalis v. ovalo-subulatls acumlnato-mucronalls; involucri squamis linearlb. 

 aculls mlnute pubescentlb., laxiuscule 3-4-serlatlm imbricatis. 



a. Foll. adprcssis in ramulis aggregatis; Involucri squamis angusle linearibus 



acutlsslmls. 

 8. Foll. in ramulls magis dlspersis; Involucri squamis lallorlb. aculfs. — Ast. 



coridifolius Hook. Comp. Bot. Mag. 1. 97. (ex parle) nec 3Ilchx. — In Georgia, 



Louislana, New Orleans et Jacksonvllle. 



48. AST. DUMOSUS Llnn. — Torr. et Gr. 1. c. 128. t — Caule glabro v. minute sca- 

 bro — pubescenle racemoso-ramoso v. decomposito; capilulls solltarlls ad aplces 

 ramulorum palentlum v. rarius subracemosis; foll. llnearib. aggregalis glabris, 

 margine scabris , sessilib. , inferiorib. caullnls lineari — lanceolatis saepe remole 

 serratis (dentib. parvls acutls et adpressis), rameallb. parvls mucronulatis; invo- 

 iucri squamis llneari-spathulalis oblusis (v. interdum abrupte nilnuleq. mucro- 

 nulatls) arcte imbricatls 4-6-serialibus, appendiclbus brevlbus herbaceis. 



a. verus: Paniculato-racemosus : ramulis dense foliosis; foliis lineari-oblongls 



obtusisq. (obscure mucronulalis) parvis patenubq., caulinis superlorib. fre- 



quenter oblusis. — Ast. dumosus Llnn. Spec. pl. II. 873. (excl. syn. Gronov.?) 



— Ast. Americanus multiflorus Pluk. Alm. t. 78. fig. 6. — Ast. fragilis Lindl. 



Hb. (eliam Bot. Reg. t. 1537?) — Ast. sparsi(lorus Nutt. Gen. Amerlc. 11. 155. 



nec Michx. — (DC. I. c. 241. no. 101?) 

 /?. coridifoUus: Racemoso-compositus v. decomposltus: ramls gracilib. elongalis 



diffusis ramullsq. dense follosls; foll. aggregatls depauperatls bracteaeformlb. 



patcnlib. v. reflexis obtusiusculls linearlb., foll. caullnls inferlorib. Ilnearlb., 



pleruraq. integrls. — Asl. coridifolius Michx. Fl. Am. bor. II. 112. — Llndl. 



Bot. Reg. t. 1587. — DC. I. c. 241. - Ast. foliolosus EII. Sktch. IF. 345. — Asl. 



foliolosus p. coridifolius Nutt. Gen. Am. II. 155. — Ast. sparsiflorus Willd. 



Enum. ex p. 

 y. subulaefulius : Diffuse compositus: foll. ramorum ramulorumq. subulalo-Ii- 



nearibus erectls v. subpatentibus, caelerum ul in var. fi. 

 S. gracilenlus: Caule gracili parclus raraoso; foll. in ramulis sparsis minimis, 



acutis v. obtusis, omnibus plerumque integris. 



