ROBERTS : YORKSHIRE ALIEN AND CASUAL PLANTS. 



said to have been first observed at Herne Bay in 1832 ; it 



has occurred since in many places in England and Scotland. 



South European. (See Nat., vol. i., p. 262.) 

 Gypsophila porrig-ens Boiss. Old quarry at Sandal. A curious 



Caryophyll, with ovate, hairy, opposite leaves like a Lychnis, 



and a dichotomous panicle of small flowers, with long, wavy, 



hair-like pedicels. 

 ^^ Malva parviflora L. Clover field at Methley. 



Geranium ph^um L. Wressle Castle. (Walton, jMr. Cooper.) 

 Medicago falcata L. Waste ground at Sandal. 

 Medicago sativa L. Frequent. 

 ^' Medicago lappacea Desr., var. denticulata W. Lofthouse, 



1884; Wressle, 1884; canal side, Woodlesford, 1885. 

 ^ Medicago lappacea var. apiculata W. Near Cawood, 1884. 

 Melilotus officinalis Desr. Common now on waste ground and 



railway banks. 



^ Melilotus indica All. = parviflora Desf. Lofthouse, 1882; 

 Cawood, 18S4; Castleford; Woodlesford; Sandal; Methley; 

 Doncaster. Appears to be well established and spreading. 

 Melilotus alba Desr. Lofthouse, 1883, 10 feet high. Sandal, 

 J. Wilcock. 



Trifolium incarnatum L. Sheep pasture at Kippax, growing 



with the white clover. 

 ^ Trifolium resupinatum L. On the border of a manure heap at 



Cawood ; waste ground at Sandal ; clover field at Methley. 



Very sparingly at each place. 

 Trifolium arvense L. Sandal. 



Trifolium ochroleucum L. var. intermedium. Sandal. 

 Anthyllis vulneraria L. On railway bank at Methley — off 

 limestone. 



Astragalus hypoglottis L. Aberford; Kippax; Glass Houghton. 

 "^'^ Lathyrus aphaca L. Field at Cawood, one or two plants. 

 Comarum palustre L. In the middle of a small marsh at 

 Stanley. 



^ Potentilla norvegica L. Canal banks at Stanley ; canal walls 

 at Woodlesford ; stony banks of the river Calder, near Castle- 

 ford. The two last-named stations are new ones, showing the 

 plant to be spreading. Now admitted into Hooker's Flora. 

 Eosa canina L., var. verticillacantha Merat. ^Vressle. 

 ^^Bupleurum rotundifolium L. (Sandal, Mr. Cooper.) 

 Helosciadium nodiflorum Koch. Fairburn, near the Aire. 

 Slum angustifolium L. Fairburn, in a wide ditch near the Aire. 

 Slum latifolium L. AVressle, near the Derwent. 



Dec. 1885. 



