SOUPH AMERICAN BOTANY. 343 
and furnished with five very short teeth: the stamens and pis- 
tilluin are all alike in structure, and I perceive no difference in 
. the fruit or seed. Chenesthes, therefore, as a genus, must verge 
into that of Iochroma, a name that ill accords with a scarlet 
corolla, but one that must remain on the score of priority. I 
suggest, however, the propriety of dividing the genus into two 
sections, one Jochroma proper, with a purple or greenish corolla, 
the other Chenesthes, with red and orange flowers. To both these 
sections I will here add several new species, proposing, hereafter, 
to illustrate by appropriate figures, the structure of each section 
respectively. The three plants first alluded to, I propose to sepa- 
rate from Zockroma, under the name of Cleochroma, for the reasons 
stated under that head (p. 348.) Dr. Walpers (Repert. vol vi. 
p. 629) refers Jochroma to the tribe Cestrinee, and in a note 
(ibid, 620) says it hardly differs, as a genus, from Cestrum. This 
statement I cannot in any degree confirm ; on the contrary, after 
a careful analysis, on which the following generic character is 
founded, it will be seen that Jochroma most unquestionably 
belongs to the tribe Solanea. 
Tocnroma, Bth. (Bot. Reg. vol. xxx. tab. 20.) Calyx ovato- 
tubulosus, subinflatus, submembranaceus, 5-dentatus, dentibus 
inequalibus, interdum fere obsoletis, demum parum auctus, per- 
sistens, et in fructus grossificatione sæpe lateraliter hinc fissus. 
Corolla tubulosa, calyce 4-6-plo longior, medio subincurva et 
subdilatata, limbo brevissimo, vix expanso, æstivatione plicato, 
margine pene integro, floccoso, dentibus 5, minimis, rotundatis, et 
alteris 5 quasi obsoletis in sinubus intermediis notata. Stamina 5, 
subinclusa ; filamenta teretia, paulo supra basin tubi inserta, imo 
crassiuscula, tomentosa, superne gracilia, glabra ; anther oblongæ, 
2-loculares, imo paulo discrete, in sinu basifixæ, loculis parallelis 
coadunatis rima externa longitudinaliter dehiscentibus. Ovarium 
obovatum, imo disco annulari fere obsoleto cinctum, 2-loculare, 
ovulis plurimis, dissepimento incrassato, utrinque affixis. Stylus fili- 
formis, apice paulo incrassatus, sæpissime exsertus. Stigma clavato- 
capitatum, emarginato-2-lobum. Bacea calyce membranaceo vesi- 
ciforme, interdum hinc fisso, inclusa, 2-locularis. Semina numerosa; 
2R2 
