24 



4. CRUCIF^ER^E. 



Matthiola bicornis. 



An escape in cultivated land 

 near Gladstone, where it is 

 known as riiikie. — All the year. 



Eastern Mediterranean region. 



2. DlPLOTAXIS, DC. 



(Greek diplos. double, taxis, 



row ; seeds arranged in 2 



rows in each cell.) 



Sepals equal at base ; pod 

 linear, compressed, valves 1- 

 nerved, beak short, conical ; seeds 

 numerou.s, ovoid-conipressed. in 

 2 rows ; cotyledons incumbent 

 and folded over the radicle. 



Stem leafy in lower 



hnlf J), icnuifolia 



Stem leafy only at base D. inuriifls 2 



1. Diplotaxis tenuifolia, 



T)C. WnU Fiocl.rf. Glabrou.s per- 

 ennial; stem woody at base, 

 erect, leafy ; lower leaves pin- 

 natifid witli linear lobes, the upper ones narrow, entire 

 or toothed ; sepals .spreading ; petals yellow ; fruiting pedi- 

 cels spreading, usually about half as long as the pod. but 

 sometimes nearly as long. Brussica t'^tiiiifnrni , Boissier. 



Port Lincoln; Murray Bridge (J. H. Maiden). — Most of 

 the year. — Europe ; western Asia, usually growing there 

 on old walls and ruins. 



2. D. mursLlis, DC. Snnd 



liothcf. Almost glabrous annual 

 or biennial ; stems slender, as- 

 cending, almost leafless; leaves 

 mostly in a radical rosette, pin- 

 natifid or sinuate-toothed, smell- 

 ing unpleasantly when crushed ; 

 sepals erect ; petals yellow ; 

 fruiting pedicels about one-third 

 as long as the pods, whicli are 

 smaller than in the preceding. 

 Brassica innralis, Boissier. 



Roadsides and cultivated land. 

 — All the year. — Europe. 



3. N.\STTJRTiUii, R. Br. 



(From the Latin iia/nis fori us, 



twisted nose; alluding to the 



biting taste of cress.) 



I. Nasturtium officin- 

 ale, R. Br. Wafer Cress. Per- Diplotaxis 



