Tropzolum pentaphyllum of Lamarck. | 13 
their habit, opposite leaves, and terminal inflorescence, I am not disposed to 
admit that there exists any relationship between them*. — 
The Tropceolee, consisting of Tropceolum, Magallana, and the genus now under 
consideration, form a small group pecüliar to South America, and, as far as we 
yet know, to the portion of that continent included between the 10th and 48th 
degrees of S.latitude. "The three genera are chiefly distinguished by their fruit, 
for as far as regards the structure of the flower they are pretty much alike. 
I shall now proceed to give the essential character and a detailed descrip- 
tion of the genus. 
CHYMOCARPUS. 
TRorort sp. Auctt. 
Syst. Linn. Octanpria Monoeynia. 
Ord. Nat. TropmoLem, Juss. 
CHAR. ESSENT. Calycis estivatio valvata. Petala 2. Pericarpium baccatum ! 
Descr. Calyx monophyllus, 5-fidus, subbilabiatus; labio superiore trilobo, 
basi calcarato: lobis ovatis, subzequalibus, sestivatione valvatis! Petala 2, 
minima, in labio superiore, spathulata, integerrima. Stamina 8, hypogyna, 
incequalia : filamenta subulata, basi dilatata: antheræ obtuse, tetragonze, 
biloculares: oculis parallelis, connatis, turgidis: valvulis distinctis, invo- 
lutis, septum constituentibus (subinde anthere quasi 4-loculares !) demüm 
longitudinaliter solutis. Ovarium triloculare: ovulis solitariis, appensis. 
Stylus triqueter, glaber. Stigma tridentatum : dentibus subulatis, recur- 
vis. Fructus: bacca sapida, tricocca: coccis monospermis, abortu sæpè 
solitariis, subglobosis, lzevibus. 
Herba (Bonariensis) scandens, radice tuberosd, perenni. Caules filiformes, glabri, 
purpurascentes. Folia alterna, petiolata, quinato-partita : segmentis elliptico- 
oblongis, obsolete mucronulatis, integerrimis, membranaceis, subtùs glaucis, 
venis atropurpureis, pollicaribus, basi angustatd substipitatis ; intermediis 
longioribus. Petioli filiformes, glabri, bipollicares, virides, plerumque flexu- 
* Since these observations were written, I have seen a learned memoir by Professor Reeper of Basle, 
intitled, ** De floribus et affinitatibus Balsaminearum,” in which that acute botanist has also noticed the 
striking analogies between the Hippocastanee and Tropeolee, The latter family he follows Jussieu and 
others in placing near to the Geraniacee. 
