OF ARTS AND SCIENCES. 189 



Sprengel as a syn. of liis S. arguta)^ appears to be S. lirida, "Willcl. 

 Enum. 



S. ScHUADKRi. Cultivated plant; looks like a hybrid between 

 S. ccesia, var. panicidata, and S. Canadensis (inflorescence not well 

 developed) ; while the plant cultivated under the name in the Paris 

 Garden in 1^69 is purely the former. 



S. CARiNATA, Schrader, in litt., is S. viminea, Ait., viz. S. semper- 

 rire7is, var. viniinea, Gray. 



S. LEPiDA. A species of the Northwest coast, collected by 

 ria:'nke, to which S. ehugafa, Xutt., veiy closely approaches. 



S. CONFERTIFLORA. Another plant of Htunke's collection on the 

 Northwest coast, very near the variable S. hmyiilis, Pursh, probably 

 only a quite glutinous form of it, the S. glutinosa, Nutt. 



S. SPATiiiLATA. Came not from " Mexicanis terris," properly so 

 called, but from Monterej^ in California, and is aS'. spiciformis, Torr. 

 and Gray, Fl., which thus becomes a synonym. , 



S. ROTUNDIFOLIA. Is a ruuud-leaved form of S. radula, Nutt., 

 from Texas. 



3. SoLiDAGO: General Disposition of the Admitted Noi'th American 

 Species, with the principal Synonyms^ at least those not cdreadij 

 adduced in Torr. ^ Gray, Flora N. America. 



§ 1. VIRGAUREA. ( Virga-aurea, Tourn.) 



* Squarros.^. ( § 1. Chrysastrum, Torr. & Gray.) 

 S. DISCOIDEA, Torr. &, Gray. A uniformly rayless species. 



S. SQUARROSA, Muhl. 



S. PETiOLARis, Ait., & var. axgusta, S angusta., Torr. & Gray, Fl. 



* * Glomeruliflor^. 

 -I— Akenes canescently hirsute or pubescent : stem and branches 

 terete, often glaucous. 



S. CiESiA, L., with var. axillaris {S. axillaris, Pursh) and var. 

 paniculata. To the latter is referred S. gracilis, Poir., S. ar- 

 gida, Spreng. Syst. (not Ait.), S. argentea, Hornem., S. Schraderi of 

 the Gardens (that of DC. seems to be an abnormal or hybrid form), 

 and even S. recurvata, Willd., all from the Gardens, and altered 

 by cultivation. This species is also the probable parent of ^S*. 

 livida, Willd., including S. Jiabellata, Schrader, or S. Jlabellijbrmis, 

 Wendl, 



