24 CRUCLFER^!. [aIatthjola. 



the back. Seeds 1-seriate, compressed, winged, or margined ; radicle 

 accumbent. — Distrib. Europe, N. Africa, W. Asia, one is S. African ; 

 species 30. — Etym. After Mattioli, an Italian physician. 



1. M. inca'na, Br. ; shrubby, erect, hoary, leaves oblong-lanceolate 

 entire, pod eglandular. Queen Stuck. 



Sea-cliffs eastward of Hastings (now extinct), I. of Wight; (a denizen, Wats.) 

 ft. May-June. — Stem 1-2 ft., branched. Leaves rarely obscurely toothed. 

 Raceme 1-2 in. Flowers 1-2 in. diam., purple to violet. Pods 2-4 in., \ in. 

 broad ; seeds orbicular, winged.— Distrib. W. Europe, Canaries, Levant. 



2. M. sinua'ta, Br. ; herbaceous, diffuse, woolly or downy, leaves linear- 

 obovate or -oblong, lower sinuate-toothed, pod muricate and glandular. 

 Shores of Wales, Cornwall (extinct?), Devon; S.E. and S. W. Ireland; Channel 



Isles; fl. May- Aug.— Stem 1-2 ft., branched above. Root-leaves petioled. 

 Raceme 1-3 in. Flowers 1 in. diam., pale lilac, fragrant at night. Pods 

 3-4 in., f in. broad ; seeds winged. — Distrib. W. Europe, N. Africa, Levant. 

 — Taste alkaline. 



1*. CHEIRAN'THUS, L. Wallflower. 



Herbs or under-shrubs, pubescent with appressed 2-partite hairs. Leaves 

 entire or toothed. Flowers large, racemed, yellow or purple. Sepals erect, 

 lateral saccate at the base. Petah with long claws. Pods elongate, com- 

 pressed or 4-angled ; valves 1-nerved, flat or convex ; stigma capitate or 

 with 2 spreading lobes. Seeds 1-seriate, compressed ; radicle accumbent. 

 — Distrib. N. temp, and cold regions ; species 12. — Etym. doubtful. 



C. Chei'ri, L. ; leaves lanceolate acute entire. 

 Old walls ; (an alien, Wats.) ; fl. May-June.— Perennial. Stem shrubby below, 

 branched, angled. Leaves 2-3 in. Flowers about 1 in. diam., fragrant, 

 orange-yellow (in cultivation red, purple or brown). Pods 1-2| in., 4-angled ; 

 stigma subsessile; seeds shortly winged above. — Distrib. Central and 

 N. Europe. 



2. NASTURTIUM, Br. 



Branched, terrestrial or aquatic glabrous herbs ; hairs if present usually 

 simple. Leaves entire lobed or cut. Flowers small, usually yellow, some- 

 times bracteate. Sepals short, equal, spreading. Petals slightly clawed, 

 or 0. Stamens 1-6. Pods short or long, often curved, terete, pedicels 

 patent and curved ; valves not rigid, convex, obscurely 1-nerved ; style 

 short or long, stigma simple or 2-lobed. Seeds 2-seriate, small, turgid ; 

 radicle accumbent.— Distrib. K. temp, and warmer regions; species 

 about 20. — Etym. Nasi tortium, from the bitterness distorting the face. — 

 United with Cochlearia by C. Armoracia (Horse-radish) and others. 



1. N. officinale, Br. ; aquatic, leaves pinnate, leaflets subcordate 

 sinuate-toothed, petals white twice as long as the sepals, pods linear. 

 Watercress. 

 Watercourses, N. to Shetland; ascends above 1,C00 feet in N". England; 



Ireland ; Channel Islands ; fl. May-Oct. — Perennial, glabrous, green or olive- 



