338 MINNESOTA BOTANICAL STUDIES. 



A. nigricans Baumg. Enum. Stirp. Trans. 2 : 104. About 



1830. 

 A. Haenkeana Koch. Syn. Fl. Germ. 23. 1837. 

 A. concoler Fisch. ex Steud. Nom. 2 ed. i: 115. 1840. 

 A. ecalcarata Hort. ex Steud. 1. c. 115. 

 A. eieg-ans'PoPK ex Steud. 1. c. 115. 

 A. sihirica Don ex Steud. 1. c. 115. 

 A. subalpina BoR. Fl. Centr. Fr. 3 ed. 2 : 24. 1840. 

 A. Be7'7iardi Gtle.^. & Godr. Fl. Fr. i: 45. 1848. 

 A. Transsilvanica Schur. Vehr. Siebenb. Ver. Nat. 3 : 



94. 1852. 

 A. sylvestris Schur. Vehr. Siebenb. Ver. Nat. 4: 4. 



1853. 

 A. glaiicophylla Steud. in Flora, 39: 407. 1856. 



A. aggericola ]oiCD. Diagn. i: 87. i860. 



A. collina ^o'Rjy. 1. c. 84. 



A. dtcmeticola ]oTCD. 1. c. 86. 



A. praecox ]oYLii. 1. c. 85. 



A. paraplesia Schur. Enum. PI. Trans. 28. 1866. 



A. Corsica Solier, ex Nym. Consp. 18. 1878. 



A glaiiccscens Baker, 1. c. 203. 



A. Karelini Baker 1. c. 76. 



A. subscaposa Borhas in Magyar Tudom. Akad. 12, IV, 

 18. 1882. 



A. platysepala Reichb. Ic. Fl. Germ. t. 4730. About 

 1886.' 

 Stem I y^-2 feet high, many flowered ; finely pubescent 

 throughout: root-leaves with 3 partial-petioles 1^-2 inches 

 long, secondary branches certain, ultimate leaf lobes shallow 

 and roundish, texture firm ; lower stem-leaves petioled and bi- 

 ternate : flowers violet to dark purple ; sepals ovate, furnished 

 with a claw, acute, i inch long, one-half as wide ; petal-limb 

 ^ inch long, equalling the head of stamens ; spur about same 

 length, stout, much incurved, knobbed : follicles densely pubes- 

 cent, I inch long, style half as long. Summer. Europe, 

 Siberia, and naturalized in America. Garden 12, p. 288. 



Var. nivea Baumg. ex Baker Gard. Chron. II, 10 : 76. 1878. 

 Var. alba Hort. Often 2-3 feet high : a great profusion of 

 large, pure white flowers. Several weeks in early spring. 



Var. flore-pleno Hort. A. plena Hort. Flowers much 

 doubled, ranging from pure white to deep blue. 



