Mr. J. Miers on several genera hitherto placed in Solanacee. 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. 1889). 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 prominent gland. 
6. Petuniee.—The genera which I have separated from the 
Solanacee to form this tribe, approach the Salpiglossidee most 
closely im 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 Merembergia*. They differ notwithstanding 
from the Salpiglossidee in the pe- 
euliar complex estivation 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 mostobscurely 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 estivation + 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 aa; fig. 4, ditto ditto 
across 0 6. 
* See Ill. South Amer. Plants, pl. 18. A. fig. 4, B. fig. 5, and pl. 20. fig. 3. 
+ It may be thus more simply defined: Aéstivatio replicativa, i. ¢. lobis 
omnibus subconduplicatis, superioris interioris marginibus revolutis, altero- 
rum plicaturis postice torsis, marginibus cum contiguis quincuncialiter late 
imbricatis, margine altero hine revoluto. 
