INDEX TO AMERICAN BOTANICAL LITERATURE 441 
Girke, M. “chinocactus gladiatus Pfeiff. und £. hastatus Hopft. 
Monats. Kakteenk. 17: 81-86. 15 Je 1907. 
Natives of Mexico. 
Girke,M. Lchinocereus Kunzei Giirke n. sp. Monats. Kakteenk. 
17: 103, 104. 15 Jl 1907. 
Native of Arizona. 
Harris, C. W. Lichens of the Adirondack League Club tract. Bryolo- 
gist 10: 64-66. 5 Jl 1907. 
Harshberger, J. W. Observations on the formation of algal paper. 
Torreya 7: 141, 142. 19 Jl 1907. 
Hemsley, W. B. Stewartia Malachodendron. Curt. Bot. Mag. IV, 
3:f/. 8145. Jl 1907. 
Native of eastern North America, 
Hill, A. W. A revision of the geophilous ‘species of Peperomia, with 
some additional notes on their morphology and seedling structure. 
Ann. Bot. 21: 139-160. p/. 75. Ap 1907. 
Includes descriptions of 7 new species, natives of tropical America. 
Hill, E. J. The validity of some species of Fissidens. Bryologist 
10: 67-74. pl. 9. 5 Jl 1907. 
Hillier, J. M. Guayule rubber. (Parthenium argentatum A. Gray.) 
Kew Bull. Misc, Inf. 1907: 285-294. Jl 1907. 
Native of Mexico and Texas. 
Holm, T. Morphological and anatomical studies of the vegetative 
organs of Rhexia. Bot. Gaz. 44:22-33. pl. 7, 2. 20 Jl 1907. 
House, H. D. Notes on southern violets — II. Torreya 7: 133-136. 
J. 4. 19 Jl 1907. 
Includes Viola oconensis sp. nov., a native of South Carolina. 
Hutchinson, J. Montanoa mollissima. Curt. Bot. Mag. IV. 3: fi. 
8143. Jl 1907. 
Native of Mexico. 
Kirby, A. M. Daffodils, narcissus, and how to grow them as hardy 
plants and for cut flowers, with a guide to the best varieties. 1-235. 
pl. 1-32. New York, 1907. 
Kirkwood, J. E. Some features of pollen-formation in the Cucurdi- 
faceae. Bull. Torrey Club 34: 221-242. p/. 17-27. 10 Jl 1907. 
Knowlton, F. H. Description of a collection of Kootanie plants from 
the Great Falls coal field of Montana. Smithsonian Misc. Coll. 
59: 105-128. p/. ri-1g. 27 Je 1907. 
Includes new species in Cladophilebis, Acrostichopteris, Dryopteris, Adiantum, 
Oleandra, and Protorhi ipis. 
