Mr. J. Miers on several genera hitherto placed in Solanacese. 173 



figure is given in the margin ; fig. 1 being the 

 corolla viewed sideways; fig. 2, ditto seen in 

 front; fig. 3, ditto seen from above. I have added 

 to this group a new genus^ Pteroglossis, founded 

 upon a plant collected in the north of Chile by 

 Bridges (his No. 1389). In Salpiglossis the two 

 broadly expanded lips of the stigma appear al- 

 most confluent into a tongue-shaped process, 

 while in the other genera they are more or less 

 distinctly separated and 2 -lipped, especially in 

 Leptoglossis and Browallia ; but in Pteroglossis 

 one of the lips appears altogether wanting, or 

 reduced to a small pi'ominent gland. 



6. Petuniece. — The genera which I have separated from the 

 Solanacece to form this tribe, approach the Salpiglossidece most 

 closely in habit and in the general structure of their flowers and 

 seeds, and moreover partake of their peculiar feature, the great 

 dilatation of their stigma : the broadly expanded lips of this or- 

 gan appear however more or less soldered into a tongue-shaped 

 process, as in Salpiglossis, which singularly embraces the con- 

 nate anthers in Nierembergia^. They diff'er notwithstanding 

 from the Salpiglossidece in the pe- 

 culiar complex aestivation of their 

 corolla : that of Nierembergia, 

 being figured in plate 18 A. fig. 2 

 of the 'Illustration of South Amer. 

 Plants,^ will require no further 

 explanation : the figure of that of 

 Petunia was omitted in plate 23 

 of that work, and its description 

 was most obscurely given in 'Lond. 

 Journ. Bot.' v. p. 18 (in a note), 

 owing to several omissions and 

 transposals of words in the hurry 

 of the last moment of the monthly 

 publication of that journal. In 

 order to remedy this omission, a 

 delineation of the aestivation t of 



Petunia violacea is now given in the margin ; fig. 1 being the 

 corolla seen in front ; fig. 2, the same viewed sideways ; fig. 3, a 

 transverse section made across the line a a ; fig. 4, ditto ditto 

 across b b. 



* See 111. South Amer. Plants, pi. 18. A. fig. 4, B. fig. 5, and pi. 20. fig. 3. 



t It may be thus more simply defined : ^stivatio replicativa, i. e. iobis 

 omnibus subconduplicatis, superioris interioris marginibiis revolutis, altero- 

 rum plicaturis postice torsis, marginibus cum contiguis quincuncialiter late 

 imbricatis, margine altero hinc revoluto. 



