18] 



Bestäubungs- und Aussäungseinrichtungen. 



577 



Name of Species 



Flowers Visited for Pollen 



19. A. nivalis Sm. 



20. A. forbesii Hob. 



21. A. claytoniae Rob. 



22. A- fragariana Graen. 



23. .4. platyparia Rob. 



24. .4. ziziae Rob. . . . 



25. .4. geranii Rob. . 



2i>. A. rufosignata Ckll. . 



27. A. geranii maculatil&ob. 



28. A. sigmundi Ckll. . . 



29. A. subcommoda Ckll. . 



30. A- corni Rob. 



31. A. multiplicata Ckll. 



32. A. thaspii Graeo. . 



33. A- vibwrnella Graen. 



34. .4. wheeleri Graen. 



35. A- albofoveata Graen 



36. A. robertsonii D. T. 



37. A. peckhami Ckll. . 



38. .4. clypeonitens Ckll. 



39. .4. nubecula Sm. 



40. A. aliciae Rob. . . 



41. .4. helianthi Hob. . 



42. A. americana D. T. 



43. .4. solidaginis Rob. 



44. A. asterig Rob. . . 

 4ö. .4. persimilis Graen. 

 46. .4. parnasiae Ckll. . 



H. A- graenicheri Ckll. 



.May Sl to .lune 27 



May 9 to .June 26 



May lOtoMay 14 

 May lötoJune 15 

 May 16 to July I 



May 18 to June 26 



May 18 to July 1 



May 19 

 May 20 to June 25 



May 26 to June 6 

 May 27 to July 3 



May 27 to July 9 



May 29 to July 30 



May 29 to June 23 

 May 29 to June 20 

 June 8 to June 18 

 June 9 to July 16 

 June 26 to July 16 



July 21 to Aug. 8 

 July 26 to Aug. 20 

 July 26 to Sept. 20 

 July 27 to Sept. 4 

 Aug. 8 to Sept. 12 

 Aug. 17toSept. 27 



Aug. 22 

 Aug. 24 to Okt. 8 

 Aug. 24 to Sept. 12 

 Aug. 2.") to Sept. 26 



Aug. 28 to Sept. 23 



Species of Eibes, Vagnera, Tltas- 

 pium, Heracleum,Cornus, Rubus, 

 Geranium etc. 



Species of Salix, Taraxacmn. 

 Viburnum, Geraniwn.( 'rntacyus. 

 Cornus, Thaspium, Sanicula 



L'tC. 



Clat/tuiüa Virginica. 

 Oligotropic, Fragaria Virginiana. 



Species of Salix, Thaspium, An- 



gelica, Cornus, Viburnum, Rhus 



etc. 

 Oligotropic, Umbellil'erae. 

 Oligotropic, Hydrophyllum. 

 Uvularia grandifiora- 

 Oligotropic, Geranium macula 



tum. 

 Species of Vagnera and Crataegus 

 Species of Thaspium, Viburnum, 



Cratagus, Symphoricarpus, Rosa. 



Spiraea, Rubus etc. 

 Species of Viburnum, Sanicula, 



Angelica, Cornus, Rubus, Rhu:. 



Rosa etc. 

 Species of Thaspium, Cornus, 



Spiraea. Symphoricarpus. Rhus, 



Ceanothus, Veronica etc. 

 Oligotropie, Umbelliferae. 

 Species of Viburnum and Rubus. 

 Oligotropic, Umbelliferae. 

 Oligotropic, Umbelliferae. 

 Species of Krigia, Ceanothus 



and Rhus. 

 Oligotropic, Compositae. 

 Oligotropic, Compositae. 

 Oligotropic, Compositae. 

 Oligotropic, Compositae. 

 Oligotropic, Compositae. 

 Oligotropic, Compositae. 

 Oligotropic, Compositae. 

 Oligotropic, Compositae. 

 Oligotropic, Compositae. 

 Oligotropic, Parnassia Carolin i- 



ana. 

 Oligotropic, Compositae. 



C. K. Schneider. 



