336 CONTRIBUTIONS TO 
which has been acceded to by all succeeding botanists, that 
Aenistus possesses an imbricate æstivation. I cannot affirm 
this statement, forin the Brazilian species upon which Schott 
founded this genus, the lobes of the corolla unquestionably 
adhere by their tomentous margins, which are mutually and 
slightly turned in, a mode of æstivation observed in many 
arborescent species of Solanum, and very different from that 
of true Lycium, where the lobes of the corolla offer an imbri- 
cate or quincuncial æstivation. It therefore seems advisable 
to unite with Aenistus, several species hitherto combined with 
Lycium, forming part of the section called Anisodontia by 
G. Don, and Lyciothamnos by Endlicher ; these mostly con- 
sist of spineless trees or shrubs, with large leaves, having 
flowers in umbellate fascicles, and I propose to confine within 
the limit of Lycium proper, those shrubs, mostly with small fas- 
ciculate leaves, whose branchlets terminate in spines, or have 
a tendency to do so, that have only 1 or 2 flowers in each axil, 
and with elements corresponding to the old generic character 
exhibited by Gärtner (de fructu 2.242), with the addition of 
the before mentioned estivation.* 
* The remaining species of Lycium in the section above alluded to, ap- 
pear to me again distinct, approaching very closely to Dunalia, but as 
their filaments want the lateral appendages peculiar to that genus, I pro- 
pose uniting them under the name of CuueNEsTHEs, derived from yawo 
dehisco, £s05c vestis; on account of its tubular calyx splitting by the 
growth of the fruit. This genus will comprise 5 species described by Prof. 
Kunth from the plants brought home from central America by Humboldt 
and Bonpland, together with another hitherto undescribed that exists in 
the herbarium of Sir Wm, Hooker; they are all trees or large shrubs, with 
abundant foliage, growing at great elevations in the vallies of the Andes, 
having generally long crimson, or orange coloured flowers of much 
beauty, the corolla presenting a 5-lobed border, with 5 small teeth in the 
intermediate narrow plicatures, as in Dunalia, and an unequally 5- 
toothed calyx, that somewhat enlarges with the fruit, and splits as above 
mentioned. 
CHÆNESTHES.— Calyx tubulosus, inæqualiter obtuse 5-dentatus, sub 2-lo- 
bus, demum parum auctus, lateraliter fissus, persistens. Corolla hypogyna 
infundibuliformiztubulosa, subincurvata, lobis 5-acutis, margine floc- 
