STNGENESIA. SUPEKFLUA. 159 



merately condensed, so as to be sliorter than the leaves, 

 often produced nearly fVom tlie base to the suinmit of the 

 stem; ravs very small and white, discal florets becominj^ 

 purple.— Such 'appears to be .:/. mif;er, of Linna:us, but 

 probably not that of Aiton, as smooth leaves appear to be 

 aitogetlicr imconipatible with this well marked species. It 

 is also distinct from the ^i. miser of Herb. Muhl. 



70. divergens. ^. A. diffusns. "/. A. pendiUus. 



This genus, consisting- of more than lOU species, is al- 

 most exclusively indl|^enous to North America and the 

 Ca|)e of Good Hope, a few species exist in Australasia, in 

 China and Japan, tiiert are likewise 2 species peculiar to 

 Siberia, and 9 or lU to Europe. 



560. SOLIDAGO. L, (Golden-Rod.) 



Calix imbricated, scules closed. Radial flo- 

 rets about 5, yellow, llccentacle naked, punctate. 

 Pappus simple, pilose. 



Herbaceous; stem often tall; flowers small, racemose 

 and yellow, racemes panlculated, erect or secund; calix 

 oblong or subcylindric, mostly coloured; radial florets 

 equal with or shorter than the calix, otten 5, sometimes 

 7, 9, and from 12 to 20. Seeds mostly smooth, also pu- 

 bescent. The scrobiculate receptacle prevails as much 

 in the preceding as in the present genus. In S. bicolor 

 only, the rays are nearly white. 



f Racemes secund. 



S>v t.ci'zs. \.S>. canadensis. 2. proccra. o. serotina. 4.g*' 

 c;antea. 3. ciliaris. Qt.reflexa. 7 . luterijlora. 8. aspera. 9. al- 

 tissima. \(). rugosa. A mere variety of the preceding. 11. 

 villoma. 12. scabra. 13. 7iemoralis, 14 patida. 15. ^dmi' 

 folia. 16. arguta. I7.jiincea. 18. ellipdca. 19. asperata. 

 Herb. Banks. Mss. 20. odora. 21.reci/rvata. 22. retrorsa. 



23. pyramidata. Ph. Scarcely distinct from the preced- 

 ing. Obs. Stem 4 to 6 feet !^igh; leaves oblong, subovate, 

 acute, margin remotely serrulate, scabrous, nearly smooth, 

 midrib on the under side pubescent, stem roughly pilose, 

 summit virgate; branches sm.all-leaved, paniculate, re- 

 curved, racemes filiform, secund, pubescent; peduncles 

 s<^juamose; fiov/ers small, liguli minute. Seed smooth. 



24. Uvigata. Obs. Stem erect and smooth, about 6 feet 

 higli, summit virgate; leaves lanceolate, carnose, every 

 where smooth; racemes leafy, secund; peduncles filiform 

 and squamose, smooth or pubescent, 1 to 3-flowered; ca- 

 lix multibracteate, scales carnose, acute; rays elongated, 

 about 10. 



25. linionifolia. Persocn. .S*. mexicana, Aiton, but not in- 



