40 
PLANTS INDIGENOUS TO 
[ Cniciferce . 
the unguis. Stamens 6. Filaments subulate. Anthers yellow, nearly 1 line long, affixed at their sinus, in 
age very recurved. Pollen-grains ellipsoid, bursting longitudinally. Stigmas united into a single depressed 
roundish one, almost sessile. Silique erect or somewhat spreading', without a stipes, about 1 inch long, §-l 
line broad. Septem nerveless. Seeds J line long. Funicles very thin, often curved, shorter than the seeds. 
Flowers in the spring. 
A similar species or remarkable variety has been found by the author at Crystal Brook in South 
Australia; it has been described as S. filifolium (Transact. Viet. Inst. i. 115; Erysimum filifolium, Linnsea, 
1852, 368), and differs in having all leaves undivided, the pedicels thicker and very spreading, the siliques 
shorter and provided with a very short stipes, in having a conspicuous style and smaller stigma, larger 
seeds, which attain the width of the septum, and perhaps also in flowers, which are unknown yet. 
The Sisymbrium officinale (Scopoli, Flora Carniolica, ii. 26), here and there occurring in Australia, is 
omitted in the series of descriptions for this work, being evidently an immigrated species. As a doubtful 
plant the Sisymbrium cardaminoides (F. M. in Transact. Phil. Soc. Viet. i. 34) is likewise excluded, its 
diversity from S. Thalianum (Gaudin, Flora Helvet. iv. 438) having not yet been convincingly proved. The 
Australian plant seems to differ, how r ever, from the European one in furcate and ramose not simple and 
furcate hair of the indument, in the leaves being toothed and those of the stem generally stalked, and in 
shorter and broader siliques, terminated by a manifest style. It occurs in sandy localities near the Rivers 
Murray and Glenelg. 
BLENNODIA. 
R. Br . in Sturt's Central Austr. ii. Append, p. 67. 
Sepals erect, often unequal at the base. Petals equal, undivided, unguiculate. Stamens free, 
without teeth. Stigmas united. Siliques long-cylindrical or lanceolate-cylindrical, bi-valved. Stipes 
wanting. Valves convex, one-nerved or almost nerveless. Septum unnerved. Seeds in each cell 
numerous or few, smooth, forming one or two irregular rows, without a border. Testa, when moistened , 
yielding a very copious fibrous mucus. Funicles short, subulate. Cotyledons incumbent; their 
edges facing the septum. 
Annual herbs, restricted to the extratropical deserts of Australia, downy with short branched hair. 
Leaves toothed or laciniated, occasionally entire, never clasping. Pedicels racemose, ebracteate. Petals 
pink or white, less frequently yellow. 
A genus considered by R. Brown nearly related to Matthiola, placed by Walpers (Anna! Botan. 
Syst. ii. 48) next to Malcolmia, chiefly by the very mucilaginous testa to be distinguished from 
Erysimum, in habit also similar to Moricandia and Diplotaxis. Blennodia alpestris, now excluded 
from the genus, forms the transit to Capsella. 
* 
Blennodia lasiocarpa, F. M. in Transact. Phil. Soc. of Viet. i. 100; Erysimum blennodes, 
F. M. in. Linncca , 1852, 367. 
Leaves nearly lanceolate, toothed or pinnatifid; petals twice or three times as long as the calyx , pink 
or white; silique very short, lanceolate-cylindrical, hispidulous, of nearly the same or of almost the double 
length of the spreading pedicel, terminated by a short and slender style and a minute stigma; valves 
indistinctly one-nerved; seeds few in each cell, narrower than the lanceolate septum. 
On arid sandy plains at the River Murray and its lower tributaries. Beyond Victoria, towards Lake 
Alexandrine (Dr. Hillebrand) and on Cooper’s Creek (A. C. Gregory). 
An erect or ascendent herb, from a few inches to 1 J foot high. Root descendent, filiform, often simple, 
sterns oftener branched than simple, terete. Radical leaves rather numerous, soon decaying, tapering into a 
long unappendiculated petiole, generally from 1—3 inches long, g-rossly toothed or even pinnatifid, with 
