170 Mr. J. Miers on several genera hitherto placed in Solanacese. 



the same plant in Sir Wm. Hooker's herbarium, I noticed one 

 very important character that has been quite overlooked by all 

 preceding observers : the anthers are here decidedly extrorse, 

 instead of the usual introrse direction before assigned to them. 

 This circumstance brings Duboisia in close connexion with the 

 two following genera, and at once removes them from the tribe of 

 the Salpiglossidece. 



yQ. Anthocercis. — I was glad to avail myself of the opportu- 

 nity of investigating the structure of the flowers in this genus 

 from a plant in the living state of A. viscosa. It agrees with 

 the figure given by Endhcher in his ' Iconographia/ tab. 68, of 

 A. littorea, with the exception of the very important feature of 

 the structure of the anthers, which, as in the preceding genus, 

 offer the very distinct peculiarity of being affixed extrorsely just 

 above the sinus upon the filament, so that the lines of dehiscence 

 are towards the tube of the corolla, not introrsely towards the 

 centre of the fiower, as appears represented in the plate above 

 referred to. The aestivation of the corolla in 

 Anthocercis viscosa is also very peculiar : at 

 first sight it would be said to be induplicato- 

 valvate, but upon more careful examination it 

 will be observed that each lobe of the border is 

 distinctly supervolute, one of its edges being 

 rolled inwards and overlapped by its opposite 

 edge ; these are not all turned in one direction, 

 two being dextrorsely, and the other three coiled 

 up alternately in a sinistrorse order. This mode 

 of aestivation is certainly extremely unusual and 

 peculiar, approaching that observed in the Goode- 

 noviacece, on which on a former occasion (Lond. 

 Journ.Bot. vii. p. 59) I have made some observa- 

 tions. There exists between them this difference, 

 that here each lobe is longitudinally and super- 

 volutely coiled round upon itself, in a somewhat 

 spiral form, while in Goodenia the winged margins are respec- 

 tively folded back over one another, upon the plane of the cen- 

 tral portion of each segment. I have also examined in the dried 

 state the flowers of A. littorea, A. albicans, A. Tasmanica and 

 A. scabrella, and they all appear to offer the same kind of aesti- 

 vation and similarly extrorse anthers, so that these appear to be 

 constant characters. It is worthy of remark, that the peculiar 

 smell of the leaves and flowers of Anthocercis viscosa resembles 

 that of the Myoporace<2, and that its pedicels are bibracteated, 

 which is also a feature in that family ; but its extra- axillary pe- 

 duncles, the aestivation of its corolla, the position of its stamens, 

 its bilocular ovarium with numerous ovules attached to a thick- 



