342 SOUTH AMERICAN BOTANY. 
tube, are unequal, varying from six to nine lines in length, the 
lateral appendices are scarcely more than two lines long; the 
number of stamens I have found to be eight in one instance, 
and four only in another, with a sterile fifth, but these, no 
doubt, are the result of irregularity; the lower part of the 
filaments are very woolly for about three lines in length, above 
which they are slender, terete, and glabrous, the anthers are erect, 
the ovarium is small, and the style, almost capillary, thickening 
slightly towards the apex, is from two to six lines longer than the 
corolla. 
IOCHROMA. 
A very pretty Solanaceous shrub with long purple flowers, now 
well known in our gardens, was first noticed by Mr. Bentham, 
and was selected by that distinguished botanist as the type of a 
new genus, under the name of Jochroma tubulosa: with this, he 
at the same time, associated two other species, and I subsequently - 
added another, evidently congeneric with these two plants last- 
mentioned, (I. wacrocalyæ, Hook. Lond. Journ. Bot. vol. W. 
p. 309,) and an excellent figure of this was at the same time 
kindly contributed by Sir William Hooker. At the period when 
I described the plant last alluded to, I had not seen the Jochroma 
tubulosa, Benth., or I should then have hardly ventured to pro- 
pose the genus Chenesthes, for the plants there described under 
that name. By the kindness of Dr. Lindley, I was furnished, 
last year, with a living specimen of Zockroma tubulosa, in flower 
and in fruit, and am now therefore prepared to compare the relation 
of this typical species with other analogous plants. Subsequent 
observations upon this group have led me to the conclusion, that 
all the plants which I formerly associated under the name of 
Chenesthes, differ but little from the typical species last alluded 
to, being only distinguished by an occasional splitting of the 
persistent calyx in fruit, and by their flowers being always scarlet 
or of a deep orange colour, instead of a dark purple: they have 
all, the same long, tubular corolla, spreading very little in the a 
mouth into a very short campanular border, which is almost entire, — — 
