506 
luctdus, 12. 
Ludovicianus, 30. 
Lyallt, 37. 
Macauleyt, 65. 
Macountz, 8. 
Macount? var. Oreganus, 8. 
macranthus Scheele, 22. 
macranthus Wats., 19. 
Madrensts, 80. 
Marilandicus, 16. 
MAXtMUS, IQs 
Me Callaz, 41. 
Mexicanus, 55. 
micranthus, 10. 
microlonchus, 91. 
Missourtensis, 72. 
Montanensts, 29. 
MLOntANUS, 50. 
montanus var. dentatus, 50. 
multicaults, 54. 
multifidus, 70. 
multifidus var. limosus, 71. 
multtfidus var. repens, 71. 
multifidus var. terrestris, 70. 
muricatus, 2. 
natans C. A. Meyer, 67. 
natans Nees, 76. 
Nelsonz, 38. 
Nelsont var. glabriusculus, 37. 
NNelsoni var. tenellus, 37. 
mtt~dus, 32. 
nivalzs Linn., 66. 
nivalis Rep. not Linn., 65. 
ntvales var. Eeschscholtztt, 44. 
Nuttalliz7, = C. 
oblongifolins, 84. 
obtustusculus Britton, 79. 
obtustusculus Raf., 79. 
occidentalis Gray, 38. 
occidentalis Nutt., 38. 
occidentalis var. brevistylus, 38. 
occidentalis var. Eisent, 37, 38. 
occidentalis var. Hlowellit, 38. 
MINNESOTA BOTANICAL STUDIES. 
occidentalis var. Lyall, 37. 
parviflorus, 37- 
Rattant, 38. 
robustus, 38. 
tenellus, 37. 
ultramontanus, 
occidentalis var. 
occidentalis var. 
occtdentalis var. 
occtdentalts var. 
occidentalis var. 
38. 
ocreatus, 44. 
Oreganus, 8. 
ornithorhynchus, 19. 
orthorhynchus, 19. 
orthorhynchus var. alpinus, 58. 
orthorhynchus var. platyphyllus, 
19. 
ovalis, 48. 
oxynotus, 62. 
Pallasit, 74. 
palmatus, 27. 
pantothrix, = B. 3. 
parviflorus Linn., 3. 
parviflorus var. T. & G., 4. 
parvulus, 9. 
pedatifidus Hook., 60. 
pedatifidus J. E. Smith, 42. 
pedatifidus var. cardiophyllus, 
42. 
pedatifidus var. pinetorum, 42. 
Pennsylvanicus, 7. 
pettiolaris, 57. 
Phitonotus Ehrh., 9. 
Philonotus, Pursh, 12. 
ptlosus, 14. 
Populago, 82. 
Porter’; — es 
prostratus, 26. 
Purshit Richards, 71. 
Purshit Torr., 67. 
Purshiti var. aqguatilis, 70. 
pustillus Ledeb., 71. 
pustllus Poir., 93. 
pusillus var. Lindhetmert, 93. 
pustllus var. oblongifolius, 84. 
pygmeus, Ol. 
