114 ILLUSTRATIONS OF 
description of Prof. Kunth, above referred to, from which it evi- 
dently appears to belong to this genus, rather than to Merem- 
bergia. The branches are prostrate, about one foot long; the 
leaves are somewhat thick and membranaceous, six to seven lines 
long, and one and a half to two and a half broad ; the peduncles 
are one line long, viscidly pubescent ; the calyx has a short tube, 
with obtuse, lanceolately spathulate, unequal, spreading segments ; 
the corolla, of a bluish colour, has a funnel-shaped tube as long 
as the calyx, pubescent, its limb with five roundish lobes; the 
stamens are unequal, included; the ovarium is supported by a 
small annular disc ; the style is filiform, slightly bent, as long as 
the stamens ; the stigma two-lobed and papillose; the capsule, 
enveloped by the persistent calyx, is two lines long, with two 
entire submembranaceous valves; the seeds are minute, angular, 
reticulate, with a two-lobed embryo enclosed in copious albumen.* 
Stendel states that Mierembergia graveolens of St. Hilaire, 
which is the NV. pubescens of Sprengel, is identical with this 
species ; but their descriptions do not accord. 
* Since the above was in type, it has been kindly suggested to me by Mr. Bentham, 
that this species is probably identical with the Callibrachoa procumbens, Ll. and Lex, 
the Salpiglossis prostrata, Hook. Arn. I am glad to find what I hinted in regard to this 
plant (see note p. 107), thus soon confirmed by so learned an authority ; all the in- 
formation I could glean on the subject, was derived from the short generic character, 
published in Walp. Rep. vol. iii. p. 958, its specific details being omitted in the enu- 
meration in p. 178 of that work. On stating my impression to Sir Wm. Hooker, he 
kindly took much trouble to search for his Californian specimens, but in vain, as, un- 
fortunately, they had been misplaced in his Herbarium. 
[It is nearly two years since the above note appeared in print, and it is now only 
(Feb. 1848,) that I have been able to see, for the first time, a specimen of the genus 
Callibrachoa, from Loredo, Mexico, upon the borders of Texas; this has served to 
confirm the anticipation before expressed, as, upon examination, I find this, the only 
described species of the genus, is in no way distinct from Petunia parviflora, which is 
fully described in a previous page (p. 111). To this last-mentioned species, must now, 
therefore, be added, as synonyms, Salpiglossis prostrata, Hook, and Arn., and Calli- 
brachoa procumbens, Lav. et Lex. DC. Prod. vol. ix. 462, 
T avail myself of this opportunity of observing, that I have since had an opportunity 
of examining living specimens of Petunia and Nierembergia, and feel convinced that 
these genera are so very intimately allied to Salpiglossis, that they must all be referred 
to the same Natural Order, for, independently of their somewhat bilabiate corolla, with 
unequal and almost didynamous stamens, of which full details are exhibited in plates 
