442 



MINNESOTA ROTANICAL STUDIES 



EXPLANATION OF PLATES 



The photograplis in plates XLVII and XLVIII were made with a Zeiss 

 photomicrographic camera. Part of the photographs were taken with a 

 No. A. objective and the remaining with the No. A3 objective, having magni- 

 fications of X 10 and X 15 respectively. 



PLATE XLVII 



Fig. 1. Malva parviflora. Arizona, Thornbcr 4f)g. X 10. 



Fig. 2. Malva parviflora, Mexico, Palmer 4S. U. S. Nat. Herb. No. 11767. 

 X 10. 



Fig. 3. Malva borealis, Sarepta, Russia. U. S. Nat. Herb. No. 11732. 

 X 10. 



Fig. 4. Malva parviflora. La Paz, Peru, Buchticn ij. U. S. Nat. Herb. 

 No. 534457. X 10. 



Fig. 5. Malva parviflora, Arizona, Tounirx yg. U. S. Nat. Herb. No. 

 212556. X 10. 



Fig. 6. Malva borealis, Great Britian. U. S. Nat. Herb. No. 813202. 

 X 10. 



Fig. 7. Malva borealis, Leeds, N. D. From a specimen in Gray Her- 

 barium. X 10. 



Fig. 8. Alalva parviflora, Laramie, Wyo., E. Nelson 2040. X 15. 



Fig. 9. Malva parviflora, Leeds, N. D. From a specimen in Gray Her- 

 barium. X 15. 



PLATE XLVIII 



Fig 

 Fig 

 Fig 



Fig 

 Fig 

 Fig 

 Fig, 

 Fig 



Fig 

 Fig 

 Fig 



10. 

 11. 

 12. 



13. 

 14. 

 15. 

 16. 

 17. 



18. 

 18. 

 20. 



Malva 

 Malva 

 Malva 



X 10. 

 Malva 

 Malva 

 Malva 

 Malva 

 Alalva 



X 10. 

 Malva 

 Malva 

 Malva 



borealis. Limestone, Wyo., A. Nelson 9532. X 10. 

 borealis, Konigsberg. Field Museum No. 55533. X 10. 

 borealis, Herb. Flora Ingricae. Field Aluseum No. 54392. 



borealis, San Bernardino, Cal., S. B. Parish 2057. X 10. 

 borealis, Europe, exact locality not given. X 10. 

 parviflora. U. S. Nat. Herb. No. 11743. X 10. 

 borealis, Copenhagen, Denmark. X 10. 

 rotundifolia, Milton, Ore. Univ. of Wj^oming, No. 33701. 



rotundifolia, Afghanistan. X 15. 

 rotundifolia, France. X 15. 

 rotundifolia, Colorado. X 15. 



