# Transactions of the Linnean Society of London/Volume 6

TRANSACTIONS
OF THE
LINNEAN SOCIETY.
VOLUME VI.
LONDON:
PRINTED BY WILKS AND TAYLOR, CHANCERY-LANE.
SOLD AT THE SOCIETY'S HOUSE, NO. 10, PANTON-SQUARE, COVENTRY-STREET,
AND BY JOHN WHITE, FLEET-STREET.
M.DCCC.II.
CONTENTS.
| I. A DISSERTATION on two Natural Genera hitherto confounded under the Name of Mantis. By Anthony Augustus Henry Lichtenstein, D.D. F.M.L.S. Translated from the German by Thomas Young, M.D, F.R.S. and L.S. | Page 1 |
| II. The Botanical History of the Genus Ehrharta. By Olof Swartz, M.D. F.M.L.S. | p. 40 |
| III. Account of a Microscopical Investigation of several Species of Pollen, with Remarks and Questions on the Structure and Use of that Part of Vegetables. By Luke Howard, Esq. of Plaistow in Essex | p. 65 |
| IV. Observations on Aphides, chiefly intended to show that they are the principal Cause of Blights in Plants, and the sole Cause of the Honey-Dew. By the late Mr. William Curtis, F.L.S. | p. 75 |
| V. Remarks on the Genera of Pæderota, Wulfenia, and Hemimeris. By James Edward Smith, M.D. F.R.S. P.L.S. | p. 95 |
| VI. An Illustratration of the Genus Solandra. By Richard Anthony Salisbury, Esq. F.R.S. and L.S. | p. 99 |
| VII. Observations on some remarkable Strata of Flint in a Chalk-pit in the Isle of Wight, in a Letter from Sir Henry Charles Englefield, Bart. F.R.S. to John Latham, M.D. F.R.S. and L.S. | p. 103 ​ |
| VIII. Remarks on some British Species of Salix, By James Edward Smith, M.D. F.R.S. P.L.S. | Page 110 |
| IX. Descriptions of four new Species of Fucus. By Dawson Turner, M.A. F.L.S. | p. 125 |
| X. Description of Callicocca Ipecacuanha. by Felix Avellar Brotero, Professor of Botany in the University of Coimbra, F.M.L.S. | p. 137 |
| XI. Observations on the Curcidio trifolii, or Clover Weevil, a small Insect which infests the Heads of the cultivated Clover, and destroys the Seed. In a Letter to Thomas Marsham, Esq. Tr. L. S. by William Markwick, Esq. F.L.S. With additional Remarks by Mr. Marsham | p. 142 |
| XII. Further Observations on the Curculia Trifolii. In a Letter to William Markwick, Esq. F.L.S. by Martin Chriftian Gottlieb Lehmann, M.A. of Gottingen | p. 147 |
| XIII. Description of Brotera persica and Mustelia eupatoria, two new Plants cultivated in the Botanic Garden of Halle, by Curt Sprengel, M.D. Professor of Botany in the University of Halle | p. 151 |
| XIV. Observations on the Hinges of British Bivalve Shells. By Mr. William Wood, F.L.S. | p. 154 |
| XV. Catalogue of the more rare Plants found in the Environs of Dover, with occasional Remarks. By Mr. Lewis Weston Dillwyn, F.L.S. | p. 177 ​ |
| XVI. Descriptions of some singular Coleopterous Insects. By Charles Schreibers, M.D. Deputy Professor of Natural History in the University of Vienna | p. 185 |
| XVII. Description of Menura superba, a Bird of New South Wales. By Major-General Thomas Davies, F.R.S. and L.S. | p. 207 |
| XVIII. On the Doryanthes, a new Genus of Plants from New Holland, next akin to the Agave. By Joseph Correa de Serra, LL.D. F.R.S. and L.S. | p. 211 |
| XIX. Observations on several Species of the Genus Apis, known by the Name of Humble-bees, and called Bombinatrices by Linnæus. By Mr. P. Huber, of Laufanne in Swisserland | p. 214 |
| XX. Botanical Characters of four New-Holland Plants, of the Natural Order of Myrti. By James Edward Smith, M.D. F.R.S. P.L.S. | p. 299 |
| XXI. Additional Observations on some remarkable Strata of Flint in the Isle of Wight, in a Letter from Sir Henry Charles Englefield, Bart. F.R.S. to John Latham, M.D. F.R.S. and L.S. of Romsey | p. 303 |
| XXII. Description of a new Species of Viola. By Thomas Furly Forster, Esq. F.L.S. | p. 309 |
| XXIII. Description of the Fruit of Cycas revoluta. By James Edward Smith, M.D. F.R.S. P.L.S. | p. 312 ​ |
| XXIV. Species of Erica. By Richard Anthony Salisbury, Esq. F.R.S. & L.S. | Page 316 |
| XXV. Extracts from the Minute Book of the Linnean Society | p. 389 |
| Catalogue of the Library of the Linnean Society, continued from Page 293 of Vol. V. of the Society's Transactions | p. 391 |
| List of Donors to the Library of the Linnean Society | p. 395 |
Directions for placing the Plates of the Sixth Volume.
Tab. :
| 1. | Phasma filiforme and Ph. hecticum, | to face page 14 |
| 2. | Phasma Ohrtmanni and Mantis Filum | 19 |
| 3. | $\scriptstyle {\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}\,$ Flowers of Ehrharta | 64 |
| 4. | $\scriptstyle {\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}\,$ Flowers of Ehrharta | 64 |
| 5. | Aphides, &c. | 64 |
| 6. | Solandra | 102 |
| 7. | Strata of Flint in Chalk | 107 |
| 8. | Fucus ruscifolius, &c. | 127 |
| 9. | Fucus clavellofus | 133 |
| 10. | Fucus Wigghii | 135 |
| 11. | Callicocca Ipecacuanha | 140 |
| 12. | Brotera persica | 151 |
| 13. | Mustelia eupatoria | 152 |
| 14. | $\scriptstyle {\left.{\begin{matrix}\ \\\\\ \\\ \\\ \ \end{matrix}}\right\}\,$ Hinges of Bivalve Shells | 176 |
| 15. | $\scriptstyle {\left.{\begin{matrix}\ \\\\\ \\\ \\\ \ \end{matrix}}\right\}\,$ Hinges of Bivalve Shells | 176 |
| 16. | $\scriptstyle {\left.{\begin{matrix}\ \\\\\ \\\ \\\ \ \end{matrix}}\right\}\,$ Hinges of Bivalve Shells | 176 |
| 17. | $\scriptstyle {\left.{\begin{matrix}\ \\\\\ \\\ \\\ \ \end{matrix}}\right\}\,$ Hinges of Bivalve Shells | 176 |
| 18. | $\scriptstyle {\left.{\begin{matrix}\ \\\\\ \\\ \\\ \ \end{matrix}}\right\}\,$ Hinges of Bivalve Shells | 176 |
| 19. | $\scriptstyle {\left.{\begin{matrix}\ \\\\\ \ \end{matrix}}\right\}\,$ Coleopterous Insects | 206 |
| 20. | $\scriptstyle {\left.{\begin{matrix}\ \\\\\ \ \end{matrix}}\right\}\,$ Coleopterous Insects | 206 |
| 21. | $\scriptstyle {\left.{\begin{matrix}\ \\\\\ \ \end{matrix}}\right\}\,$ Coleopterous Insects | 206 |
| 22. | Menura superba | 207 |
| 23. | $\scriptstyle {\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}\,$ Doryanthes excelsa | 213 |
| 24. | $\scriptstyle {\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}\,$ Doryanthes excelsa | 213 |
| 25. | Humble-bees | 230 |
| 26. | Nidification, &c. of Humble-bees | 238 |
| 27. | The same | 278 |
| 28. | Viola concolor | 311 |
| 29. | Cycas revoluta | 314 |
| 30. | A Frond, &c. of the same | 315 |
| 31. | Cancer Phalangium | 389 |