No. 4SO.] 



NOTES AND LITERATURE, 



475 



An account of DeVries' mutation theory, with portrait, is pub- 

 lished by Harris in The Open Court for April. 



The vegetative vigor of hybrids and mutations is considered by 

 Cook in a leaflet of Proceedings of the Bioiogica/ Society of Washing- 

 ton, issued April 9. 



Nelson describes a number of new flowering plants from Nevada, 

 and proposes new names for ten old species known under preoccu- 

 pied names, in leaflets of Proceedings of the Biological Society oj 

 Washington, issued on April 9. 



Pammel publishes an account of some weeds of Iowa as Bulletin 

 70 of the Experiment Station of that State. 



Miss Perkins has issued (Gebriider Borntrjeger, Leipzig, January, 

 1904) the first fascicle of "Fragmenta Flora; Philippinae," embody- 

 ing the results of studies carried on at the Berlin Museum and based 

 on the collections of Warburg, Merrill, Ahern and others. 



Merrill has published, from the Manila Bureau of Government 

 Laboratories, papers on new or noteworthy Philippine plants and 

 the American element in the Philippine flora. 



A list of the plants known from Siam, by Williams, is being pub- 

 lished in current numbers of the Bulletin de FHerbier Boissier. 



Vol. 4, Sect. 2, of the Flora Capensis, under the editorship of This- 

 elton-Dyer, runs from Hydrophyllacese into Scrophulariacea. 



A number of views of the vegetation of Samoa accompany an arti- 

 cle on that group of islands, by Kellogg, in Out West for April. 



Vol. 3, fascicle i, of Coste's "Flore descriptive et iUustrde d6 la 

 France" deals with Scrophulariaceae and Labiata;. 



An analysis of the vegetation of Madeira, by Vahl, has been issued 

 from the Gyldendalske Boghandel, of Copenhagen. 



A posthumous paper by Weber, published by Roland-Gosselin in 

 January from the Bulletin de la Societ'e Centrale d' Agriculture, etc., de 

 Nice, deals with the restored genus Cleistocactus. 



Certain Arizona cacti are illustrated in The Gardener's Chronicle 

 of March 19. 



Country Life in America for April contains an illustrated article by 

 Julia E. Rogers on Magnolias. 



