364 Index to American botanical literature 



Squires, W. A. A vegetable tramp [mullein]. Am. Bot. 10 : 30-32. 

 F 1906. 



Stockberger, W. W. Furthur notes on Anthurus borealis. Ohio Nat. 

 6 : 517. 14 Ap 1906. 



Stone, W. Certain plant "species" in their relation to the mutation 

 theory. Science II. 23 : 701, 702. 4 My 1906. 



Sumstine, D. R. Note on Anthurus borealis. Ohio Nat. 6 : 474. 

 15 F 1906. 



Sydow, H. & P. Neue und kritische Uredineen — IV. Ann. Myc. 

 4: 28-32. 5 Ap 1906. 



Includes descriptions of new North American species in Uromyces (5) and Puc- 

 cini a (2). 



Taylor, E. B. The Georgia bark or quinine tree (Pinckneya pubens). 

 Plant World 9: 39-43. /. 6. [Mr] 1906. 



Udden, J. A. The northern limit of the papaw tree. Science II. 

 23 : 920. 15 Je 1906. 



Ulbrich, E. Leguminosae andinae I. Repert. Nov. Sp. 2: 1-13- 

 15 Je 1906. 



Includes new species in Trifolium (2), Indigo/era {2) 9 Daha (io), and Cowsetia. 



Ulbrich, E. Leguminosae andinae II. Bot. Jahrb. 37 : 416-423. 24 



Ap 1906. 



Descriptions of 7 new species in Astragalus. 



I, 2. 24 Ap 1906. 



Jahrb. 37 : 400-408. /. 



Includes descriptions of 2 new species in Ranunculus, and a new genus, Lacco- 

 petalum. 



Ulbrich, E. Ueber die systematische Gliederung und geographische 

 Verbreitung der Gattung Anemone L. Bot. Jahrb. 37*. 257-334. 

 //. 1-3. 27 F 1906. 



Ule, E. Ameisenpflanzen. Bot. Jahrb. 37: 335-352. 27 F 1906. 



Urban, I. Plantae novae andinae imprimis Weberbauerianae. I. 

 Bot. Jahrb. 37: 373-462. pi. p +/. 1, 2. 24 Ap 1906. 



Consists of 18 separate papers, here indexed under their respective authors : Diels, 

 Graebner, Kranzlin, Pilger, Ulbrich, Zahlbruckner. 



Van Hook, J. M. Ascochyta Pisi — a disease of seed peas. Ohio Nat. 



^ : 507-512. 14 Ap 1906. 

 Van Hook, M. S. The hop-hornbeam or ironwood. Ostrya virginiana. 



Plant World 9: 17, 18. [F] 1906. 

 Vaughan, T. W. The work of Hugo de Vries and its importance in 



the study of problems of evolution. Science II. 23 : 681-691. 4 



My 1906. 



