Index to American botanical literature 325 



Underwood, L. M. American ferns — VI. Species added to the flora 

 of the United States from 1900 to 1905. Bull. Torrey Club 33 : 

 189-205. 7 Ap 1906. 



Includes descriptions of new species in Asplenium (2), Stenochlaena, Tectaria and 

 Selaginella. 



Underwood, L. M. & Lloyd, F. E. The species of Lycopodium of the 



American tropics. Bull. Torrey Club 33: 101-124. 14 Mr 1906. 



Recognizes 42 species, of which 17 are described as new. 



Urban, I. ' Notae collaboratorum biographicae. Flora Bras. 130: 155- 

 212. 1 Ap 1906. 



Biographical sketches of the 66 contributors to the Flora Brasiliensis. 



Urban, I. Vitae itineraque collectorum botanicorum. Flora Bras. 

 130 : 1-154. 1 Ap 1906. 



Records of the lives and travels of 138 botanical collectors in Brazil. 



Van Hook, J. M. A cause of freak peas. Torreya 6 : 67-69. /. /. 

 25 Ap 1906. 



Veitch, J. H. Hortus Veitchii : a history of the rise and progress of 

 the nurseries of Messrs. James Veitch and Sons, together with an 

 account of the botanical collectors and hybridists employed by them 

 and a list of the most remarkable of their introductions. 1-542. 

 London, 1906. 



Illustrated with 50 unnumbered photogravure plates. 



Vilmorin, P. L. de. Hortus Vilmorinianus. Catalogue des plantes 

 ligneuses et herbacees existant en 1905 dans les collections de M. 

 Ph. L. de Vilmorin et dans les cultures de MM. Vilmorin- Andrieux 

 et Cie a Verrieres-le-Buisson. i-xii. 1— 371. pi. 1-26 + f. i-iOj. 

 Verrieres-le-Buisson, 1906. 



Appendix to Bull. Soc. Bot. P'rance, vol. 51. 



Weatherby, C. A. An extreme form of Botrychium virginianum. 



Rhodora 8 : 47, 48. 26 F 1906. 

 Wilson, P. The American dragon's-blood-tree. Jour. N. Y. Bot. 



Gard. 7 : 39-41. /. 2. F 1906. 

 Woodward, R. W. Notes on two species of Sporobolus. Rhodora 8 : 



2 3- 7 F 1906. 



