| 370 | Dr. Smith's Account of Brunonia. |
too confidently perhaps asserted for natural, may it not on the other hand guide us to some natural combinations, in helping us, for instance, to understand Corymbium? These anomalous productions, while they perplex the system-builder, enlighten the true observer. Who knows but the difference between an upright and a reversed embryo, which, according to our present knowledge, I allow to be almost insuperable, and by which rule Brunonia must be referred to the Corymbiferæ, and not to the Dipsaceæ, may prove, like every other known character, liable too ccasional exception?
EXPLANATION OF THE PLATES.
Tab. XXVIII. Brunonia australis.
Fig. 1. Planta magnitudine naturali. 2. Flos completus magn. auctus. 3. Calyx exterior cum bracteâ respondente capituli. 4. Corolla cum dimidio calycis interioris. 5. Pistillum et Stamina, quorum tubus antherarum apertus. 6. Stigma dimidio indusii abscisso. Apex styli cum indusio stigmatis.
Tab. XXIX. Brunonia sericea.
Fig. 1. Planta magnitudine naturali. 2. Capituli lobus magn. auctus. 3. Flos completus. 4. Calyx exterior cum bracteâ respondente capituli. 5. Stamina et Pistillum, cujus Stigma longitudine indusii. 6. Stamen unicum. 7. Pistillum, cujus stigma semiexsertum. 8. Apex Styli cum indusio stigmate adhuc incluso. 9. Stigma denudatum. 10. Calyx interior fructifer. 11. Tubus ejusdem apertus, ostendens semen filamentis infrâ cohærentibus cinctum. 12. Semen filamentis persistentibus cinctum. 13. Apex incrassatus operculiformis tunicæ exterioris seminis. 14. Semin tunica exteriore orbatum. 15. Embryo.
| XVIII. A De- |
