THE COLONY OE VICTORIA. 
39 
Crucifer ce,\ 
Sisymbrium nasturtioid.es, F. M. in Transact. Viet . Inst. i. 115 ; Erysimum Nasturtium, 
F. JL in IAnnau> 1852, p. 368. 
Annual, erect or diffuse; leaves pinnatUobed, rarely simply linear; lobes few, linear, teetliless; pedicels 
slender, spreading 1 , ebracteate, at last about as long* as the silique; petals yellow, small, spatliulate, not 
much longer than the small spreading yellow sepals; stamens about as long as the corolla; anthers 
cordate-ovate, silique rather short, linear or oblong-linear, compressed; valves one-nerved, nearly mem¬ 
branous; seeds ovate, brown, smooth, forming almost an irregular double row in each cell, much narrower 
than the septum. 
On plains at the Murray River towards the junction of the Darling; in South Australia along the 
Hill, Hutt, and Rocky Rivers. 
A glabrous weak herb with the habit of a Nasturtium. Stems several from each root, £-1 foot long. 
Root descendent, cylindrical, flexuose, almost simple or sending out lateral fibrillm. Stem-leaves, as well as 
radical leaves, deeply pinnatilobed or three-sected or some undivided, tapering into a linear exappendiculate 
conspicuous petiole, with the addition of which 1-3 inches long, or in diminutive specimens still smaller. 
Lateral lobes opposite or alternate, from 1| line to more than i inch long, perfectly entire; the terminal lobe 
also linear, longer than the rest, sometimes fully 1 inch long; all lobes about 1 line broad. Pedicels 
capillary, numerous, at first coiymbose, a few lines long* and crowded, soon racemose and 3-8 lines long. 
Sepals nearly ovate, about 1 line long. Stamens 6. Filaments §-l line long, subulate, somewhat thickened 
at the base. Anthers line long, yellow. Pollen-grains ellipsoid, smooth, bursting longitudinally. 
Style short or very short. Stigmas united into a single orbicular one, impressed in the centre. Silique 
generally from inch long, i-f line broad. Valves very subtle veined. Septum nerveless. Seeds in 
each cell several or numerous, about J line long. 
Flowers during the spring months. 
This species is intermediate between the sections Irio and Arabidopsis, and approaches in habit to 
S. Thalianum. In its minute yellow flowers and size and shape of fruits, it comes nearer to S. canescens, 
Nuttall. The disposition of the seeds is that of S. glaucum. 
Amongst the plants collected during Sir Thom. Mitchell’s expedition on the Balonne, a Sisymbrium 
exists closely allied to the preceding, differing in being clothed with short undivided hair, in having 
broader and toothed lobes of the leaves, and perhaps petals of different color. 
Sisymbrium trisectum, F. M. in Transact. Viet. Inst. i. 114. 
Glabrous, stems suffruticose; leaves numerous, trisected; segments and some leaves simply linear- 
filiform or bifid; pedicels slender, slightly spreading, ebracteate, at last of J or nearly J the length of the 
fruit; petals white, generally orbicular and abruptly unguiculate, as long as or not much longer than the 
greenish spreading sepals, stamens about as long as the corolla; anthers hastate-linear; silique slightly 
Gompressed; valves thinly one-nerved ; seeds oblong-ovate, brown, smooth, forming an irregular simple or 
half-double row, narrower than the septum. 
On sandy clay-soil and on the dry limestone-plains of the Murray River. In New South Wales, on the 
Darling; in South Australia, near the Flinders Ranges, the Murray River, and in the interior north-west of 
Spencer’s Gulf.— Conf. Report on Plants of Babbage 1 s Expedition, p. 7. 
A handsome plant, 1 to several feet high. Branches furrowed. Leaves J-J inch long, divided into a 
narrow unappendiculated stalk and rather fleshy segments, by innovation frequently fasciculate, not rarely 
glabrous; segments generally line broad, occasionally 1 inch long, frequently considerably shorter. 
Racemes scented, on a leafless streaked peduncle of 1-3 inches length; many-flowered, when fruit-bearing* 
sometimes fully 1 foot long, not corymbose even when in flower. Pedicels whilst flower-bearing 2-3 lines, 
whilst fruit-bearing 3-5 lines long, scarcely spreading. Sepals oblong, veined, about line long, with 
white tender margin. Lamina of petals 1-1J line long, sometimes more ovate and somewhat tapering into 
