THE ALIEN PLANTS OF ESSEX.
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Rumex Patientia L. (Europe).—Virley.
R. salicifolius Weinm. (N. America).—Malting refuse, Hythe
Quay, Colchester, G. A. B. ; Grays, R. Melville, collector.
R. pulcher L. (Europe, Orient).—Hythe Quay, Colchester ;
Fordham.
R. limosus Thuili.—Grays, R. Melville, collector.
R. obovatus Dauser.—Hythe Quay, Colchester.
Emex spinosa Campd. (Europe).—Malting refuse, Hythe
Quay, Colchester.
EUPHORBIACEAE.
Euphorbia Esula L. (Europe).—Dagenham, L. B. Hall,
collector,
E. virgata Waldst, and Kit. (Europe).—Tilbury, R. Melville,
collector ; Colchester, G. C. B.
Ricinus communis L. (Tropics).—Dagenham, R. Melville,
collector.
Mercurialis annua L. (Europe, N. Africa).—Gardens, etc.,
Colchester ; waste ground, Lawford.
URTICACEAE.
Cannabis sativa L. (Asia).—Bourne Pond, etc., Colchester ;
Dagenham, R. Melville, collector.
Urtica pilulifera L. (Mediterranean region, Orient).—Malting
refuse, Hythe Quay, Colchester.
HYDROCHARITACEAE.
Elodea canadensis Michx. (N. America).—Common in streams.
and ponds throughout Essex.
IRIDACEAE.
Crocus albiflorus Kit. (Europe).—Warley, Miss E. Willmott,
collector.
LILIACEAE.
Asparagus officinalis L. var. altilis L.—Bird-sown by East
Donyland Wood and Alphamstone
Ornithogalum nutans L. (Europe).—Frating, Miss B. Dyer,
collector.
PALMACEAE.
Phoenix dactylifera L. (N. Africa).—Seedlings at Bourne Pond
and Victoria Road, Colchester, G. C. B. ; Dagenham, R. Melville,
collector.