312 THE JOURNAL OF BOTANY 



CharacecB of the Puibeck beds which formed the subject of an 

 exhibition at the Linnean Society on June 1st, and of which some 

 account was given in our July issue (p. 213). The paper contains 

 a detailed description of the genus Clavator, with an accompany- 

 ing plate (from photographs) showing details of structure. 



The third and concluding part of the Flora of Aden, by the 

 Rev. Ethelbert Blatter, S.J., E.L.S., completing the seventh 

 volume of the Eecords of the Botanical Survey of India, has 

 recently been published. The two preceding instalments were 

 noticed in this Journal (1914, 255 ; 1915, 376) on their appear- 

 ance ; the present concludes the enumeration of the phanerogams ; 

 the cryptogams are represented by one Fungus and five Lichens. 

 A full bibliography is appended and there is a full index. 



In addition to the Dutch New Guinea plants enumerated on 

 p. 308, the part of Hooker's Icones Plantarum issued in June con- 

 tains many plants of special interest. Dr. Stapf describes three 

 new genera of grasses ; two of Fayiicece — Chloachne from West 

 Tropical Africa, and Uranthmcnmi (based on Bottbcellia truncata 

 Maiden & Betchej from New South Wales — and Danthoniopsis 

 {Arundmellece) from West Tropical Africa. He also contributes 

 a monograph of the Madagascar genus Pcecilostachys, of which 

 five species are enumerated. 



The latest issue of the Jourjial of the Limiean Society (Botany, 

 xliii, no. 291) contains a paper on " The Structure and History of 

 Plav, the Floating Fen of the Delta of the Danube," by Marietta 

 Pallis, with fifteen plates ; and " On a Collection of Bornean 

 Mosses made by the Eev. C. H. Binstead," by Mr. H. N. Dixon, 

 with two plates. In the latter many new species are described. 



The centenary of the establishment of the Sydney Botanic 

 Gardens was celebrated by a pubhc meeting at the Gardens, at 

 which Mr. Grahame, the Minister for Agriculture, presided, and the 

 Governor, Sir Gerald Strickland, was present. Mr. Maiden, 

 Curator of the Gardens, delivered an address in which he briefly 

 sketched their history, and at the conclusion of the proceedings 

 Mr. Grahame laid the foundation of the new herbarium and 

 museum. 



The latest issue (dated August 15th) of the Contributions from the 

 Gray Herbarium of Harvard University is entirely devoted to 

 Mr. J. Francis Macbride's work upon Borraginacecs. It contains 

 three papers : "The True Mertensias of North America," of which 

 32 species, four of them new, and many new varieties, are described; 

 " Eevision of the genus Oreocarya," with 45 species, three new ; 

 and " Notes on certain Borraginacece," with a new genus, 

 Amblyyiotopsis, based on plants previously referred to Krynitzkia, 

 numerous new species of Cryi:)tantha, Mertensias from China and 

 Japan, and a New Zealand Myosotis. A clavis is supplied for the 

 species of Mertensia and Oreocarya. It is evidently an important 

 contribution to our knowledge of the order. 



