TROPtE'OLUM MORITZIA'NUM. 
MORITZ’S INDIAN CRESS. 
EXOGENffl. 
OR 
DICOTYLEDONE®. 
Natural division 
to which 
this Plant belongs. 
NATURAL ORDER. TROP^OLACE^ 
THAL.AMIFLOR.E 
OF 
DECANDOLLE. 
C Artificial divisions 
< to which 
(. this Plant belongs. 
OCTANDRIA, 
MONOGTNI.4, 
OF LIXNEUS. 
No. 221. 
GENUS. Trop^olum. Linn£us. Calyx o-partitus, lobo superiore cal- 
carato. Petala 5, inesqualia, 3 inferiora minora aut evanida. Stamina 8, 
ab ipsa basi libera. Carpella 3, suberosa, reniformia, indebiscentia, bine sul¬ 
cata rotundata. Semina magna, exalbuminosa, loculum suum implentia et 
hujus cavitati conformia. Embryo magnus; cotyledonibus 2, rectis, crassis, 
junioribus distinctis, dein arete conferruminatis et etiam cum spermodermate 
adbsereiitibus, ima basi subdistinctis- radicula intra cotyledonum processus 
latente, tubercula 4 mox radieellas proferentia gerente. Herba; Americanee, 
sapore nasturtiano donatae, glabriuseulie, tenerae, diffusae, aut volubiles. Folia 
alterna, non stipulacea. petiolata, peltinervia. Pedunculi axillares, 1-flori. 
SPECIES. Trop^olum Moritzianum {Link, Klotzsch, Otto) ubique 
glaberrimum; foliis peltatis sinuatis, reniforme-orbiculatis, basi truncatis, ner- 
vis margine mucronato-dentatisj petalis calycem vix superantibus, argute incisis, 
duobus superioribus subsessilibus, basi euneatis, tribus inferioribus longe 
unguiculatis, subrotundis, palmato incisis, unguibus longe eiliatis; calcare 
reeto, petalis longiore. 
Character of the Genus, Troptiolum. Calyx five-partite, 
the upper lobe spurred. Petals five, unequal, the three lower 
smaller or undeveloped. Stamens eight, entirely free. Carpella 
three, corky, kidney-shaped, indehiscent, or furrowed and rounded. 
Seeds large, exalbuminous, each completely filling the loculament 
in which it is placed. Embryo large, with two straight thick cotyle¬ 
dons, at first free, afterwards firmly agglutinated to each other, and to 
the testa, subdistinct at the base, the radicle lying between the processes 
of the cotyledons, bearing four tubercles, from which rootlets presently 
arise. 
Description of the Species, Troptiolum Moritzianum. 
Plant every where glabrous. Root tuberous. Stem long, slender, 
much branched. Leaves inches across) petiolate, alternate, reni- 
form-siiborbiculate, bright green above, glaucous below, nerves radi¬ 
ated, reticulated, conspicuous, seven-nine lobed, truncated at the 
54. 
Reference to the Dis.sections. 
1, Lower petal. 2, Upper petal. 
