39 (Centranthus ruber) and Hedgerow Cranesbill (Geranium pyrenaicum). The plat-form walls sheltered two plants of Wall Rue (Asplenium ruta-muraria), one at either end of the plat-form wall. After the refurbishment of Braintree Station, these will probably be the only plants of this small fern in the 10 kilometre square. Black Spleenwort (Asplenium adiantum-nigrum) which formerly also occurred at both stations has now gone, but is still present in some quantity at Bannister Green Bridge, although we did not walk far enough along the line to see it on this occasion. Along the track conspicuous plants included Wild Basil (Clinopodium vulgare), Hawkweed Oxtongue (Picris hieracioides), Musk Mallow (Malva moschata), Wild Carrot (Daucus carota) and Burnet-saxifrage (Pimpinella saxifraga). Small—flowered Cranesbill (Geranium pusillum) was identified by the uniformly short hairs on its flower stalks which distinguish it from Geranium molle with a mixture of long and short hairs. There was a single clump of Spiked Sedge (Carex spicata) near Graunt Courts and one plant of Great Lettuce (Lactuca virosa) was seen on the way back to Rayne. The disturbed ground and as yet unseeded verges of the new Braintree bypass produced a wide variety of interesting weeds, including Yellow-Juiced Poppy (Papaver lecoqii), Treacle Mustard (Erysimum cheiranthoides) and Small Toadflax (Chaenorhinum minus). Two small ponds beside the track contained