PIIANEROGAMIA. 99 



Relating chiefly to galls and monstrous growths on Tamarix, 

 Deverra, Zygophyllum, and other eastern plants. 



Eremy, E. — Recherches Chemiques surla composition des cellules vege- 

 tales. — Ann. des Sciences Nat. (Bot.). Ser. iv., torn. xii. pp. 320-353. 

 (Ext. from Comptes Rendus). 



M. Ere my' s observations relate chiefly to results obtained by the 

 treatment of vegetable tissues with the ammonuret of copper, in which 

 he finds the true cellulose layer of the cell- walls to be readily solu- 

 ble together with the azotised matter which often occurs in it ; while 

 the inner deposits, having pectine as their base, are insoluble, and are 

 left as pectate of copper, retaining the form of the original cells. M. 

 Ere my announces the discovery of a new acid, which he terms " cel- 

 lulic," comparable to malic acid, and forming soluble compounds 

 with all bases. It is obtained by submitting the carefully washed 

 pulp of fruits or succulent roots to the action of lime, with which it 

 forms a cellulate, and from which it may be separated by oxalic acid. 

 The distinctive chemical characters presented by ligneous and cor- 

 tical fibrous tissue and pith are detailed. Special chapters are de- 

 voted to the chemical examination of cuticle, the composition of the 

 prosenchyma, vessels, and medullary rays of wood ; also to the com- 

 position and mode of formation of gums in vegetable organisms. 



Gasparrini, G Ricerche sugli organi assorbente delle radice, et sulle 



loro escrezioni. Osservazioni sull'origine dell' embrione seminale 

 della Lemna minor. — Napol. Mem. II. 



Gray, Asa. — Note on the Species of Nissolia. — Jour. Proc. Linn. Soc. 

 (Bot.), vol. v., pp. 25-6. 



Diagnoses are given of N. Wislizeni, and N. Schottii, A. Gr. 



Geis, Arthur Observations sur la fleur des Marantees — Ann. Sc. Nat. 



(Bot.). Ser. iv., torn, xii., pp. 193-219, with 4 plates. 



A minute account is given of the floral structure of species exa- 

 mined by the author in the living state in the Jardin des Plantes, 

 with observations on the function of the staminodia in the process 

 of fertilisation. The structure of the fruit, and especially of the 

 seeds (of Thalia dealbata, and other species), is described in detail. 



Hammar, 0. — Monographia generis Euniariarirm. 6 plates. 4to. — 

 TJps. Acta. ii. 2. 



Han-stein. — Ueber ein noch nicht bekanntes System schlauchformiger 

 Gefasse im Parenchym der Blatter. Berl. Mon. 59 (11). 



Harvey, "W. H. — " Thesaurus Capensis;" or, Illustrations of the South 

 African Flora. Yol. i, Parts 3, 4. 8vo. Plates 51-100. 



Pleiospora, a new genus of Legurninosse, near Psoralea ; also 

 Tryphostemma, a genus of Passiflorese, with flowers not larger than 

 those of chickweed, are described and figured. 



and 0. W. Sonder. — Elora Capensis ; a Systematic Description 



of the Plants of the Cape Colony, Canraria, and Port Natal. Vol. 1 . 

 (RanunculaceaB to Connaraceae). 



Hassearl, J". K. — Hortus Bogoriensis Descriptus. Continuation. Bon- 

 plandia. viii. Jahrg., pp. 90-100. Serophulariacea?, Solanaceoe (the 



