PART III.—1851.
XVIII. Note on Samara Iseta, Linn. By G. A. Walker-Arnott, Esq., LL.D.,F.L.S. &c., Regius Professor of Botany in the University of Glasgow page 359
XIX. On a new Genus of Plants of the Family of Burmanniaceae. By John Miers, Esq., F.R.S., F.L.S. &c 373
XX. On Jansonia, a new Genus of Leguminosse, from Western Australia. By Mr. Richard Kippist, Lihr. L.S. &c 383
XXI. On the Structure of the Ascidia and Stomata of Dischidia Rafflesiana, Wall. By the late William Griffith, Esq., F.L.S. <Sfc. Communicated by R. H. Solly, Esq., F.R.S., F.L.S. &c 387
XXII. On the Impregnation of Dischidia. By the late William Griffith, Esq., F.L.S. 8fc. Communicated by R. Brown, Esq., V.P.L.S. &c. . .391
XXIII. On Athalaraia, a new Genus of Marcliantiese. By Hugh Falconer, Esq., M.D., F.R.S., F.L.S., Superintendent of the Hon. East India Company s Botanic Garden at Calcutta, &c 397
XXIV. On the early Stages of Development of Lenianea fluviatilis, Agardh. By G. H. K. Thwaites, Esq., Lecturer on Botany and Vegetable Physiology at the Bristol Medical School. Communicated by the Rev. M. J. Berkeley, F.L.S. 399
XXV. On Meliantheae, a new Natural Order, proposed and defined by J. E. Planchon, Docteur-es-Sciences. Communicated by the Secretary . 403
XXVI. On the Formation and Use of the Air-sacs and Dilated Trachece in Insects. By George Newport, Esq., F.R.S., F.L.S. &c. . . .419
XXVII. On the Anatomy and Affinities of Pteronarcys regalis, Newm. : with a Postscript, containing Descriptions of some American Perlidse, together' with Notes on their Habits. By George Newport, Esq., F.R.S., F.L.S. &c 425
