54 APPENDIX. 



of the corolla is a little more swollen towards tlie summit, and 

 the lobes of the border smaller than usual, as in the genus in 

 question : in the latter species the insertion of the stamens is 

 even lower than in Boucheiia. 



Of the eleven species of Fabiana enumerated by M. Dunal, it 

 is evident from the characters given that the five first mentioned 

 only belong to the genus. F. grandiflora is probably one of the 

 singiilar species of Alona (possibly A. rosh^ata) described by 

 Prof. Lindley, or it may be a plant closely allied to, if not 

 identical with, Phrodus Bridgesii {huj. voL p. 25, tab. 41). 

 F.squamuligera is probably Phrodus nodosus {loc. cit. tab, 43 B). 

 F. thymifolia^ F. Sellowiana and F. heterophyllay none of which 

 I have seen, appear, from the descriptions given of them, to be- 

 long to Petunia^ as Dr. Sendtner has also concluded (Flor. Bras, 

 part 6. pp. 175, 176). 



Under Oestrum^ M. Dunal considers Hahrothamnus merely as 

 a section of that genns, but in his ^ Conspectus ' he places them 

 as distinct genera. For a long while I was doubtful on the' sub- 

 ject ; but on a more careful examination of hving plants, an 

 essential difference was found to exist in the floral structure, 

 which was indicated by their habit : these differences were enu- 

 merated on a former occasion {huj, voh p. 79). 



Having animadverted upon M. DunaFs general arrangement 

 of the SolanaceeSj I now proceed to offer a few comments on 

 some of the genera. In p. 449 we find Cacabus included in Phy- 

 salts : it is nearly four years since {huj. voL p. 48) I pointed out 

 the characters by which the former differs from the latter, one 

 of the most striking features being, that in Cacabits the inflo- 

 rescence is fasciculated, while in Physalis the axillary flowers are 

 invai'iably sohtary. In this last-mentioned genus the calyx is at 

 first more urceoiate, 5-toothed, afterwards it becomes greatly 

 enlarged, inflated, pentagonously globular and subreticulated : 

 in Cacabus at an early stage it is tubular, inflated below by five 

 saUent saccate lobes, and narrowed towards the mouth, where it 

 is divided into five acute segments ; it is then delicately thin in 

 texture, finely and elegantly reticulated, and afterwards increases 

 in size, but less in proportion, when it always retains its delicate 

 texture, form, and almost araneoid appearance. In Physalis the 

 corolla is broadly and roundly campanular, generally of a yellow 

 colour, and is either immaculate, or more usually marked with 

 five large purple spots in its lower moiety; it is seldom more 

 than twice the length of the calyx : in Cacabus the corolla is 

 large and conspicuous, tubular, and slender at base, suddenly 

 expanding into a funnel-shaped campanular form, with a nearly 

 entire limb, like the flower of a Nolana or Convolvulus, being 

 like them of a delicately pale blue, marked with five long linear 



