Index to American botanical literature 509 



House, H. D. A new species of Dichondra. Muhlenbergia I : 130, 

 131. 24 Ap 1906. 



D. occidentalism from Southern California and Lower California. 



House, H. D. Nomenclatorial changes in the Orchidaceae. Muhlen- 

 bergia I : 127-129. 24 Ap 1906. 



House, H. D. A note upon Ipomoea cuneifolia A. Gray. Torreya 6 : 

 123, 124. 20 Je 1906. 



House, H. D. Notes on southern violets — I. Torreya 6 : 171-173. 

 25 Au 1906. 



Including a description of Viola redunca sp. nov. 



House, H, D. The violets and violet hybrids of the District of Colum- 

 bia and vicinity. Rhodora 8 : 11 7-1 2 2. //. 77, 72. 28 Jl 1906. 



Howe, R. H. Ramalina rigida in Massachusetts. Bryologist 9 : 54. 

 3 My 1906. 



Howe, R. H. Some lichens of Mt. Watatic, Massachusetts. Bryolo- 

 gist 9 : 46-48. 3 My 1906. 



Jeffrey, E. C. & Chrysler, M. A. On Cretaceous Pityoxyla. Bot. 

 Gaz. 42: 1-15. //. /, 2. 28 Jl 1906. 



Jennings, 0. E. Additions and corrections to the list of the vascular 

 flora of Allegheny County, Pa. Ann. Carnegie Mus. 3 : 473-479. 

 Jl 1906. 



Jennings, 0. E. A new species of Ibidium (Gyrostachys). Ann. 

 Carnegie Mus. 3 : 482-486. p/.20. Jl 1906. 



I. incurvu??i y from Pennsylvania. 



Jennings, 0. E. A new species of Kneiffia. Ann. Carnegie Mus. 3: 

 480, 481. pL ip. Jl 1906. 



A". Sumstinei, from Pennsylvania. 



Jennings, 0. E. A note on the occurrence of Triglochin palustris 

 Linnaeus in Pennsylvania. Ann. Carnegie Mus. 3: 482. Jl 1906. 



Kellerman, W. A., Gleason, H. A. & Schaffner, J. H. Spring flora 



for beginners and amateurs, i-xiii. 1-188. Columbus, Ohio, 1906. 



Kirkwood, J. E, The pollen-tube in some of the Cucurbitaceae. 

 Bull. Torrey Club 33: 327-346. //. 76, 17. 20 Jl 1906. 



Knight, 0. W. Viola Novae-Angliae in the Penobscot valley. Rho- 

 dora 8 : 115. 28 Je 1906. 



Krasser, F. & Rechinger, K. Bearbeitung der von Professor von 

 Hohnel im Jahre 1899 in Brasilien gesammelten Melastomaceen. 

 Oesterr. Bot. Zeits. 56: 191-195. Je 1906. 



Includes 2 new species in Leandra, 



