CKtrCIFEB^. ^ 103 



often sprinkled with a few hairs ; the leaves rather smaller and more divided ; 

 the flowers smaller, in looser racemes. Pod scarcely more than a line 

 broad, but slightly wrinkled, and readily separating into two ovoid nuts. 



On the seacoasts of North and South America, South Africa, and western 

 Europe. In Britain, on the southern and western shores of England, from 

 Sussex to Caernarvonshire, and in Ireland. In inland districts only as an 

 occasional straggler. Fl. all summer. 



XXV. "WOAD. ISATIS. 



Erect annuals or biennials, with undivided leaves, the upper ones clasping 

 the stem, and auricled. The flowers small, yellow, and numerous. Pod 

 flat, pendulous, obovate or oblong, with a strong rib on each side, inde- 

 hiscent, and containing a sLugle seed. Eadicle inciunbeut on the back of 

 the cotyledons. 



A small genus, spread over southern Europe and western Asia. 



1. Dyer's VToad. Isatis tinctoria, Linn. 

 (Eng. Bot. t. 97.) 



Stems 18 inches to 2 or 3 feet high, branched in the upper part, glabrous 

 and glaucous, or with a few hairs m the lower part. Radical leaves obovate 

 or oblong, coarsely toothed and stalked, 2 to 4 inches long ; tlie upper ones 

 narrow and lanceolate, with prominent auricles. Pods hanging from slender 

 pedicels, generally about 7 or 8 lines long and 2 to 2-j broad, and tapering 

 to the base, but somewhat differing in size and shape according to the 

 variety. 



Of south-eastern origin, formerly much cultivated in many parts of 

 Europe and Asia, and has thence become established in stony or waste 

 places, as far north as Sweden. Repeatedly found in several locahties in 

 Britain, but scarcely fully naturalized. Fl. summer. 



XXVI. CAKILE. CAKILE. 



Maritime branching annuals, with fleshy leaves and purplish or white 

 flowers. Pod oblong-huear, somewhat compressed, without any longitudinal 

 partition or valves, but, when ripe, separating transversely into 2 articles, 

 the upper one mitre-shaped, deciduous, containing one erect seed ; the 

 lower one persistent, not unlike the head of a pike, divided into two points, 

 and containing a pendulous ovule, which seldom enlarges into a seed. 

 Radicle obliquely incumbent on the back or towards the edge of the coty- 

 ledons. 



A genus consisting of very few species, spread over the seacoasts of the 

 northern hemisphere, both in the new and old world. 



1. Sea Cakile. Cakile maritima, Scop. 

 {Bimias CaUIe, Eng. Bot. t. 231. Sea Rochet.) 

 Stems hard at the base, with loose straggling branches a foot long or 

 more, and glabrous. Leaves few, thick and fleshy, with a few distant, ob- 

 long or hnear lobes. Flowers not unlike those of a Stock, but smaller. 

 Pods on short thick pedicels, distant from each other in long racemes ; 

 when young, linear or lanceolate and entire, but when ripe, forming the 

 two peculiar articles above described. Radicle remarkably large. 



