THE COLONY OE VICTORIA. 
Cruciferce .] 
31 
and in extratropical South America, rare however anywhere except on high mountain 
tracts within the tropics; they are, with exception of Cardamine liirsuta L., totally 
wanting in the whole botanically-known portions of tropical Australia, even in the 
northern desert interior, notwithstanding their slightly augmented number in the 
southern desert; otherwise they are also comparatively scarce as well in extratropical 
Australia as in Tasmania and New Zealand, even in alpine elevations. The identity 
of several of our indigenous Cruciferae, although they seem not to be introduced, with 
European species appears singular. 
Tribe I. PLEURORHIZiE, Candolle, Syst. i. 146. 
Radicle facing the commissural line of the cotyledons. 
NASTURTIUM. 
R. Brown, in Alton. Sort. Kern, ed. ii. vol. iv. p. 109—Water-cress. 
Sepals spreading, equal. Petals entire, sometimes wanting. Stamens free, without teeth. 
Stigmas confluent. Capsule sub-cylindrical or ellipsoid, rarely sjiheroid, bi-celled. Valves nerveless 
or imperfectly nerved at the base. Septum broader than the seeds. Seeds in each cell irregularly 
biseriate, roundish, somewhat flattened, without a border. Cotyledons accumbent, directed with their 
edges to the placenta?. 
Branching herbs, generally found in swampy humid or fountainous localities of many parts of the 
globe, often smooth. Lower branches frequently rooting. Leaves mostly pinnatilobed. Racemes 
many-flowered. Pedicels spreading. Petals white or more frequently yellow. Silique often curved. 
Cand. Syst. ii. 187. 
This genus is closely connected with Sisymbrium amongst Nothorhizse, and more so still with 
Armoracia (the Horse-radish). 
Nasturtium terrestre, R. Br. in Sort. Kew, ed. ii. v. iv. p. 110; N. palustre, Cand. Syst. ii. 191; 
Koch, Sijnops. Flor. German, ed. ii. vol. i. p. 38; N. semipinnatifidum, Sooh. Journ. of Botany, i. 246- 
Yellow Marsh-cress. 
Root annual or biennial, simple or branched; leaves pinnatifid or pinnatisected, sometimes merely 
toothed, auriculate at the base, lower ones almost lyrate; lobes nearly ovate or oblong, confluent, unequally 
repand, sinuate or crenate or serrate; petals about as long as the calyx, yellow; style short; siliques turgid, 
blunt, ellipsoid, about as long as their pedicel; seeds fulvous, densely and minutely dotted-reticulate. 
Around swamps, lakes, and along the banks of rivers, in many localities. The identical plant is 
dispersed not only over almost all extratropical countries of the northern hemisphere, but likewise over parts 
of the Indian Highland, of temperate South America, New Zealand, Tasmania, and the Colony of South 
Australia. 
An erect or recumbent glabrous or less commonly hairy herb, from a few inches to 2 feet high. Stem 
and branches leafy, furrowed. Root not creeping. Radical leaves conspicuously stalked, often h foot long 
and cleft to the stout midnerve ; stem-leaves more or less deeply divided, upwards gradually shorter ; their 
lobes oval or oblong, unequal, forming several or a few pairs 5 terminal lobe the largest, cordate ovate or 
lanceolate, all more or less confluent or separated, not unfrequently a small lobe interjacent. Upper leaves 
with fewer or no lobes, often jagged only or even merely toothed, elongate lanceolate, occasionally lanceolate- 
