240 THE ESSEX NATURALIST our boundary rivers—though this apparent lack might be made good to some extent by a study of the place-names of Hertford- shire and Suffolk. However, it must be remembered that the Stour separated not only what are now two counties but what were then two kingdoms—those of the East Saxons and the Angles. The majority of the natural history names refer to the flora and these will be dealt with in groups. First, those which may be classified as ground-cover: Bentley (Common) (Hatfield Broad Oak) Bent clearing 1238 Bentley (Great and Little) Bent-grown clearing 1045 Clavering Place where clover grows circa 1050 Goldhanger Grass-land, probably with some associated marsh plant DB Greensted (Ongar) Green-place DB Ongar Grass-land 1045 The majority of these are in the west of the county—the two exceptions are in the east, at Bentley and Goldhanger. Then comes a small group, widely scattered, typical of heath- land: Braxted (Great and Little) Fern-brake DB Bromley (Great and Little) Broom clearing DB Broomfield Broom-covered open country DB Farnham Bracken 'ham(m)' DB Hadleigh Heath clearing circa 1000 Although so many of the early settlements were on or close to rivers, the names of few water-plants appear in place-names: Bumpstead (Helions and Steeple) Place of reeds (or of flax or hemp) DB Cressing Place where cress grows 1136 Russetts (Field name in Chingford) Clump of rushes 1222 Thaxted Place where reeds (or other plants used in thatching) grow DB With this group may be associated that referring to Willow and there are four such, all somewhat scattered from south to north: Saling (Great and Bardfield) Dwellers by the 'sealh' or willow, and note here the connection with the scientific name of Willow—Salix DB Widdington Willow farm DB Widford Withy ford 1202 Wyfields (Farm) (Horndon-on-the-Hill) Willow open-land 1240 There are a number of place-names associated with plants which were probably grown as crops, but they have been included to make the picture as complete as possible. With two excep- tions, all are in the northern half of the county: