NOTES ON THE FLORA OF HOLSTEIN. 373 
Rissen. Ci. Phellandriwm, tolerably frequent in ditches 
and marshes on the Elbe below Blankenese. 
Oplismenus Crus-galli occurs pretty abundantly among Buck- 
wheat, in the fields round Schenefeld. 
Ornithopus perpusillus. Abundant on sandy heaths and the sand- 
dunes round Rissen; the specimens being generally very 
large. 
Oxalis stricta. Koch mentions that this plant has been brought 
from North America, and is now naturalized in Germany, 
occurring in orchards and among garden-plants, and pre- 
cisely in such a station I met with it in plenty at Schene- 
feld. 
Phleum pratense, var. nodosum, was also abundant in the mea- 
dows and marshes. 
Polygonum Bistorta. On roadsides ; common. 
Polygonum Convolvulus and dumetorum. In the hedges. 
Polygonum Hydropiper, P. lapathifolium, and P. minus. In the 
Elbe marshes below Blankenese. 
Potentilla argentea I found plentifully on the roadside near 
Schenefeld ; and on the Blankenese Hills, near Suldorf. 
Pulicaria dysenterica and vulgaris. la the marshes and ditches 
on the Elbe, below Blankenese. | 
Ranunculus Flammula, var. reptans. Abundant in ditches and 
marshes everywhere. 
Radiola Millegrana. Very abundant on the sandy heaths every- 
where. 
Rhamnus Frangula. Common in the hedges and thickets round 
Schenefeld. 
Rhynchospora alba. Plentiful in all the bogs and moors round 
Schenefeld. 
Rumex Hydrolapathum. Frequent in the Elbe marshes below 
Blankenese. 
Sagitiaria sagittifolia. Common in the ditches and marshes on 
the Elbe, below Blankenese. 
Saponaria.officinalis 1 met with occasionally in the hedges: but 
none of the specimens seemed purely native, having double 
flowers, etc. 
Scirpus triqueter and lacustris. Common in the Elbe marshes 
below Blankenese. 
Scutellaria galericulata. Abundant in the hedges on the road, 
through the sand-dunes, between Rissen and Wedel. 
