5Q3 rOMP081TAK. 



I. TUKILIFL. c. AHtoroldruc. 



ASTEU. 



gis, hasi subamplcxicaulit). [i,'i(en(il). ; cnpi(ulis ^iiiodinrril).) iri r.mii.s foliosis sim- 

 plici(or racemosis pc(lunciil;i(is, pcdunculis brevissimis liractealis; involucro 

 canipanuiato <|uam <liscus breviori, s<piamis lincari-laucoolatis aciilis arctc Iri- 

 serialiui imbricatis, extcriorib. subbrevioribus. — Prope lioston. 

 §. 10. Salici folii Torr. ct Gr. l. c. 134. — Capitula {mediocria v. mafjna 

 speciosa) plentmque corymbosa v. paiiiculala', involucri squamae uequa- 

 les V. subinaequales magis mitiusvc imbricatae, apiculis patentibus laxis 

 foliaceis v. herbaccis, squamis exlerioribus frequenter omnino herbaceis; 

 achaeniis pubescentibus v. ylabris', jlosculis radii plcrumque magnis nu- 

 merosis coeruleis v. purpurascentibus ; foliis caulinis scssilibus, superio- 

 ribus matjis minusve amplexicaulibus. 



I luvolucri s<iuauiis crcctis v. a<lpressis, apicuiis plerumque brcvibus (rarius 

 squarrosis) berbaccis, exlerioribus saejie omnino lierbaceis. 



56. 'AST. LAXUS Willd. Enum. pl. hurl. Bcrol. II. 886. — DC. I. C. £40. — Torr. et 

 Gr. I. c. t 



57. *AST. PRAEALTUS Poir. Suppl. I. 493. — DC. 1. c. 236. — Toir. el Gr. I. c. 135. t 



58. AST. ELODES Torr. et Gr. I. c. 136. t — Lacvissimus glaber: caule plerumfi- 

 simplici, apice corjniboso- v. rarius subracemoso-paniculato; foll. lineari-lan- 

 ccolatis carnosis aculis v. utriuq. acuminatis integris v. sparse adpresscq. ser— 

 rulatis nilidis, reticulalo-venosis, supra saepe apicem marginesq. versus scabri- 

 usculis, supremis basi magis minusve augustala subamplexicaulib.; involucri 

 obovoidei squamis arcte iuacqualilerq. 3-4-seriatim imbricalis linearib. v. spa- 

 lliulato-lincarib. mucronulato-acutis, exteriorib. saepe apice hcrbaceo rccurvalo- 

 palentib. , intimis ercclis discum aequantib.; flosculis radii magnis; achaeniis 

 glabris. — Asl. jialudosus Nult. Gen. pl. Am. II. 155? — Foll. variantib. ex an- 

 guslc lanceolalo ad late ovali-lanceolata v. infimis lanceolalo-spalhulalis. — 

 In Massachussetls, Ncw Jersey, Pcnsylvania, Virginia et in Carolina boreali. 



59. *AST. >0V1 BELGII Linn. Hort. ClifT. 108. — DC. I. c. 238. {excl. syn. Ast. flo- 

 ribundi Nutt.) — Torr. ct Gr. 1. c. t — -^»*. laevigatus Prsh. Fl. Am. sepl. II. 553? 

 — Planla sponlaiica variat: 



a. Capilulis amplis solilariis v. subsolitariis in ramulis brevib. axillarib. saepc 



quam folia luullo brevioribus. 

 fi. Capilulis (majusculis) glomeratis v. breviter aggregalo — racemosis in apice 



ramorum axillarium, qai folia caulina modo longitudinc excedunt v. iis bre- 



viores occurrunt; ramis sccundum cauleni racemosis v. apice aggregatis el 



corymbosis. 

 y. Capilulis (minorib.) ad apicem ramorum gracilium numerosorum racemosis 



v. racemoso-pauiculatfs; ramis ipsis raccraosis, superiorib. fastigiatis; invo- 



lucri squaiuis angusliorib., radio breviori. 



60. *AST. AMPLUS Lindl. in Hook. Fl. Bor. Am. II. 10. — DC. 1. c. 230. — Torr. cl 

 Gr. I. c. 137. t 



61. *AST. DOLGLASII Lindl. I. c. 11. — DC. I. c. 239. — Torr. el Gr. 1, c. 138. t 



62. *AST. LAXIFOLIUS N. ab Esenb. Ast. 69. - DC. I. c. 23G. — Torr. el Gr. I. c. t 

 yS? horealis: Caule slricto laevi iiiiido v. apicem versus pubescenle; foll. an- 



guste lineari-lanceolalis clongalis, margine scaberrimis parce serrulatis sac- 

 peq. inlegris, supra scabriusculis; capitulis solilariis v. paucis siibcorymbosis 

 in ramis slriclis (sacpc brevissimis); involucro discum circiler aequanle, squa- 

 mis 2-3-serialis subaequalib. laxis, apicc inagis minusve palentib. v. dcmum 

 squarrosis. — Ast. salicifolius Richards. Appdx. F'rankl. Journ. (cd. 1.) 748. 

 nec Ait. 

 Y? lactiflorus: Caule gracili, plcrumq. scabriusculo racemoso-ramoso; ramis 

 longis subliliformib. palentib.; foll. linearib. v. angusle lanceolato-lincarib. 

 elongatis acutis rigidis, supra scabris, margine remote serrulatis saepeq. in- 

 tegris scaberrimis; capilulis laxe racemosis v. ad apices ramorum subpani- 



