4. CRUCIFER^. 123 



localities, it would appear that the Iberis is well established 

 in Berksliu-e, Oxfordshire and Buckinghamshii'e ; partially 

 so in the com fields of Hertfordsliire, Bedfordshire, Cam- 

 bridgesliii-e and Essex. But in other parts of England, 

 beyond the two pro\dnces which embrace these counties, it 

 is scarcely more than an occasional straggler. Its proper 

 position seems to be nearer to the ' alien' than to the ' na- 

 tive' side of the intennediate category of colonists.' 



67. Lepidium latifolium, Linn. 



Aiea (I 2) 3 4 * 6 7 * 9 10 (11 * 13 14 15). 



South limit in Somerset, Sussex, Kent ? 



North hmit in Yorkshire and Anglesea ? 



Estimate of provinces 6. Estimate of counties 10. 



Latitude 52 — 55. English type of distribution. 



Agrarian region. Inferagiarian — Midagiarian zones. 



Descends to the coast level, in the Thames. 



Ascends to a trifling elevation. 



Native ? Littoral, &c. Localities for this plant have 

 been recorded from twenty comities or upwards ; but several 

 of these being close by old castles and other suspicious 

 spots, or accompanied by remarks in doubt of their being 

 tiiily native habitats, I have conceived it the better com-se 

 to reject many of them. The coast localities, in a few 

 eastern counties, seem to have the best claim to be re- 

 ceived as natiual and native ; but I let some of the western 

 provinces stand above, without inclosiu-e, imtil further in- 

 vestigation. 



