100 



CHi'STRAL EXPERIMENTAL FARM 



SOLIDAGO Con. 



S. canadensis procera. 



PL, 1895. Hardy. Ht. 3 to 34 ft. 

 FL deep golden yellow; July 18 

 to Sept. 5. 



*S. elongata, NUTT. North America. 

 PL, 1902. Hardy. Ht. 34 to 4 ft. 

 Fl. golden yellow ; July 4 to Aug. 



18. 



S. gigantea, AIT. North America. 



Syn. 8. serotina gigantea. 

 PL, 1897. Hardy. Ht. 54 ft. FL 

 golden yellow; July 26 to Sept. 

 21. 



S. humilis, PURSH. North America. 

 PL, 1895. Hardy. 



S. juncea, AIT. North America. 



PL, 1894. Hardy. Ht. 4 to 44 ft. 

 Fl. golden yellow ; July 16 to 

 Aug. 29. 



*S. missouriensis, NUTT. North Amer. 

 PL, 1895. Hardy. Ht. 14 ft. FL 

 golden yellow; July 14 to Aug. 9. 



*S. nemoralis, AIT. North America. 



PL, 1895. Hardy. Ht. 2 ft. FL 

 bright golden yellow; July 29 to 

 Sept. 19. 



S. pubemla, NUTT. ISiorth America. 

 PL, 1895. Hardy. 



S. puberula, NUTT. North America. 

 PL, 1908. 



**S. rigida, L. North America. 



PL, 1895. Hardy. Ht. 2 to 24 ft. 

 FL golden yellow ; June 24 to 

 Aug. 29. 



SOLIDAGO Gon. 



S. odora, AIT. Eastern and South-east- 

 ern United States. 

 PL, 1905. Half hardy. 



S. sempervirens, L. North America. 

 PL, 1898. Hardy. Ht. 3 to 44 ft. 

 FL golden yellow ; Aug. 4 to 

 Oct. 3. 



S. serotina, AIT. North America. 



PL, 1901. Hardy. Ht. 6 ft. FL 

 golden yellow; Aug. 4 to Oct. 8. 



8. serotina gigantea = S. gigantea. 



*S. Shortii, TORR. & GRAY. Arkansas. 

 PL, 1902. Hardy. Ht. 3 to 34 ft. 

 FL golden yellow ; Aug. 10 to 

 Sept. 17. 



S. ulmifolia, MUHL. North America. 

 PL, 1907. 



S. Virgaurea compacta S. Virgaurea 

 nana. 



*S. Virgaurea nana. 



Syn. S. Virgaurea compacta. 



PL, 1905. Hardy. Ht. 1 to 14 ft. 



FL golden yellow ; July 16 to 



Aug. 11. 



SPH^RALCEA, A. 8T. HILL. 



(Malvaceae.) 

 S. nmnroana, SPACH. North-western 



America. 

 PL, 1908. 



SPIGELIA, L. WORM GRASS. 



(Loganiacece.) 

 ***S.marilandica, L. North America. 



PL, 1901. Hardy. Ht. 14 to 2 ft. 

 FL cardinal outside, greenish yel- 

 low inside; July 7 to Aug. 27. 



SPIR^A, L. 



(Rosacece.) 



The spiraeas are among the most graceful hardy herbaceous perennials, and are 

 very ornamental and useful in borders. The majority of them are moisture-loving 

 plants, and to give the best results should be planted in rich moist soil. The strong 

 growing species such as Spircea Aruncus and Spircea camtschatica (S. gigantea}, 

 require a large space in which to develop properly. They make effective individual 

 specimens, or may be used with good effect in the shrubbery. Propagation is effected 

 by dividing the clumps, and as these increase rapidly in size a good plant can soon be 

 multiplied. 



