vi CONTENTS. 



VII. On the Lycium of Dioscorides. By John Forbes Royle, Esq., F.L.S., 



late Superintendant of the Hon. East India Company's Botanic Garden 

 at Saharunpore page 83 



VIII. ./ Review of the Natural Order Myrsinese. By M. Alphonse De 

 Candolle, Honorary Professor and one of the Directors of the Bo- 

 tanic Garden at Geneva 95 



IX. On the Modifications of Estivation observable in certain Plants, formerly 



referred to the Genus Cinchona. By Mr. David Don, Libr. L.S. 139 



X. Additional Observations on the Tropseolum pentaphyllum of Lamarck. By 



Mr. David Don, Libr. L.S 145 



XI. A Commentary on the Fourth Part of the Hortus Malabaricus. By 



(the late) Francis Hamilton, M.D., F.R.S. and L.S 147 



XII. Memoir on the Degree of Selection exercised by Plants, with regard to 



the Earthy Constituents pi-esented to their Absorbing Surfaces. By 

 Charles Daubeny, M.D., F.R.S. L.S. G.S., S^c, Professor of Botany 

 and Chemistry in the University of Oxford 253 



XIII. Review of the Order of Hydrophylleae. By George Bentham, Esq., 

 F.L.S 267 



XIV. On Diopsis, a Genus of Dipterous Insects, with Descriptions of Twenty- 



one Species. By J. O. Westwood, Esq., F.L.S 283 



XV. Descriptions, 8^c. of the Insects collected by Captain P. P. King, R.N., 



F.R.S., in the Survey of the Straits of Magellan. By John Curtis, 

 Esq., F.L.S. ; A. H. Haliday, Esq., M.A. ; and Francis Walker, 

 Esq., F.L.S 315 



XVI. Description of a new Species of the Genus Chameleon. By Mr. Samuel 



