204 



THE AMERICAN NATURALIST [Vol. XLI 



Report of the Missouri Botanical Garden, von Schrenk concludes that 

 the radial force of twig gro\\i;h may equal a pressure of 40 or more 

 atmospheres. 



A biographic sketch of C. B. Clarke, with portrait, appears in the 

 November Journal of Botany. 



A short account of the :McKinley or Dinkey grove of big-trees is 

 given by Guthrie in Forestry and Irrigation for October. 



The Journals. — Botanical Gazette, November: — Chamberlain, 

 "The Ovule and Female Gametophyte of Dioon"; Brooks, "Tem- 

 perature and Toxic Action"; Cook, "The Embryogeny of some Cuban 

 Nymphseacese." 



The Fern Bulletin, October:— Fellows, "The Fern Flora of Maine' ; 

 Gilbert, "Polypodium vulgare var. alato- multifidum, var. nov."; Clute, 

 "The Genus Oleandra"; Negley, "Where Florida Ferns Grow"; 

 Palmer, Asplenium ebenoides in Chester Valley, Pa."; Ferriss, "On 

 Cultivating our Ferns " ; Clute, " Rare Forms of Ferns, — I " ; Squires, 

 "A New Station for Selaginella douglasii" ; Puffer, "The Rusty 

 Woodsia in Cultivation." 



Torreya, December: — Harper, "Some Hitherto Undescribed Out- 

 crops of Altamaha Grit and their Vegetation"; Berry, "Leaf Rafts 

 and Fossil Leaves" ; Sheldon, "A Rare Uromyces." 



Rhodora, November: — Hitchcock, "Notes on Grasses"; Blanchard, 

 "Some Maine Rubi. The Blackberries of the Kennebunks and Wells 

 —HI"; Fernald, "Twelve Additions to the Flora of Rhode Island"; 

 Leavitt, "Regeneration in the Leaf of Aristolochia sipho" ; Fernald, 

 " Potamogeton spathceformis a probable Hybrid in Mystic Pond." 



Torreya, November: — Howe, "Some Photographs of the Silk 

 Cotton Tree {Ceiba pentandra), with Remarks on the Early Records 

 of its Occurrence in America"; Hill, "A Mississippi Aletris and 

 Some Associated Plants"; Shafer, ''Hibiscus oculiroseits" ; :Murrill, 

 "How Bresadola Became a Mycologist"; Burnham, "A New Species 

 of Monotropsis " ; Blanchard, "A New Dwarf Blackberry." 



Journal of Mycology, November: — Long, "Notes on New or Rare 

 Species of Ravenelia"; Atkinson, "A New Entoloma from Central 

 Ohio"; Kellerman, "Fungi Selecti Guatemalenses Exsiccati, Decade 

 1" [label data]; Morgan, "North American Species of Lepiota" 

 (continued); Kellerman, "Index to North American Mycology" 

 (continued). 



