LIST OF HERBACEOUS PERENNIALS 



17 



ASARITM, L. 



(Aristolochiacece.) 



A. canadense, L. Wild Ginger, Cana- 

 dian Snake-root. North Amer. 

 PL, 1894. Hardy. Ht. 8 in. Fl 

 brownish purple; April 23 to 

 May 31, 



A. europaeum, L. Asarabacca. Eu- 

 rope, &c. 

 PL, 1898. Tender. 



ASCLEPIAS, L. SWALLOW WORT, MILK 

 WEED. 



(Asclepiadacece.) 



A. Fremontii, TORR. California. - 

 PL, 1906. Hardy. Ht. 3J ft. FL 

 pinkish purple; July 16 to July 

 30. 



*A. incarnata, L. Swamp Milk-weed 



North America. 



PL, 1896. Hardy. Ht. 3 ft. Fl. 

 rosy purple ; June 30 to Aug. 18. 



A. incarnata pulchra. 



PL, 1897. Hardy. Ht. 3 ft. FL 

 rosy purple ; Aug. 10 to Sept. 12. 



A. phytolaccoides, LYON. North Am. 

 PL, 1895. Hardy. 



**A. tuberosa, L. Butterfly-weed. North 



America. 



PL, 1894. Hardy. Ht. 2 ft. Fl. 

 bright orange ; July 3 to Aug. 4. 



A. verticillata, L. North America. 

 PL, 1907. 



ASPAKAGUS, TOURN. 



(Liliacece.) 



A, Broussonettii, JACQ. Northern Afr. 

 PL, 1907. 



ASPARAGUS Con. 



A. officinalis, L. Asparagus. Europe, 



&c. 

 PL, 1898. Hardy. 



ASPERULA, L. 



(Rubiaceoe.) 

 A. carpathica, Hort. = A. suberosa. 



A. ciliata, ROCHEL. Eastern Europe. 

 PL, 1907. 



A, Gusonii, Boiss. Sicily. 

 Syn. A. nitida. 

 PL, 1908. 



***A, hexaphylla, ALL. Italy and Hun- 

 gary. 

 PL, 1896. Hardy. Ht. 1 to 3 ft. 



Fl. white; June to Aug. 

 A. nitida, Guss. = A. Gussonii. 



**A, odorata, L. Woodruff. Europe, &c. 

 PL, 1905. Hardy. Ht. 1 ft. FL 

 white; May 23 to July 8. 



A. suberosa, SIBTH. & SM. Greece. 

 Syn. A. carpathica, Hort. 

 PL, 1908. 



A. taurina, L. Europe. 

 PL, 1908. 



A. tinctoria, L. Dyer's Woodruff. 



Europe. 



PL, 1901. Hardy. Ht. 1 to li ft. 

 FL white; June 10 to July 27. 



ASPHODELINE, REICHB. 



(Liliacece.) 



*A. lutea, REICHB. Mediterranean re- 

 gion. 



PL, 1896. Hardy. Ht. 3 ft. FL 

 yellow ; June. 



ASTER, TOURN. STAR WORT, MICHAELMAS DAISY. 

 (Composites.) 



There are so many species of asters growing wild in Canada, and they are so 

 common that they have not yet become popular in this country as cultivated plants, 

 but when grown in a mass they are very effective, and on account of their lateness in 

 blooming make a show at a time when there are few perennials in flower. In England 

 the Michaelmas daisy is very popular, and a large number of new varieties have been 

 originated there, some of which are of great merit and are very ornamental. The 

 two European species, A. alpinus and A. Amellus, and their varieties are very distinct. 

 They have larger flowers than the American asters, and are lower growing than most 

 kinds. A. alpinus is not, however, very permanent, and .must be renewed from time to 

 time. Most asters increase very rapidly, and they are usually propagated by division 

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