gissing: flora of wakefield. 



235 



Order— EUPHOEBIACE^. 



Merourialis. Linn. Mercury. 

 M. perennis, L. Perennial, or Dog's Mercury. P. January — May. Common. 



Euphorbia. Lmn. Spurge. 

 U. helioscopia, L. Sun Spurge. A. June — September, Common. 

 U. Peplis, L. Petty Spurge. A. July — December. Common. 

 E. exigua, L. Dwarf Spurge. A. July — November. Common. 



Buxus. Linn. Box. 



B. sempermrens. L. Common Box, S, May — June. A cultivated skrub. 



Order— CALLITRICHACE^, 



Callitrighe. Limi. Water-starwort. 

 O. verna, L. Vernal Water-starwort. April — August. Common. 



C. autumnalzs, L. Autumnal Water-starwort. A. June — October. Sliarle- 



stone, Askern, in an aquarium — -it will after a few weeks be almost im- 

 possible to distinguish, one from tlie otber. 



Order— CEEATOPHYLLACE^. 



Ceratophyllum. Linn. Hornwort. 

 C. demersum, L. Common Hornwort. P. July. 'New Miller Dam. 



Order— UETICACE^. 



Urtica. Lmn. ISTettle. 

 U. urens, L. Small Nettle. A. June — September. Erequent. 

 U. dioica, L. Great Nettle. June — September. Common. 



Parietaria.. Linn. Pellitory of the Wall. 

 P. officinalis^ L. Common Pellitory. T. June — September. ParstonOy 

 Smeaton, Mirfield, &c. 



HuMULUs. Linn. Hop. 

 H. Lupulus, L. Common Hop. P. July — September. Pontefract, BirkiUy 

 (Mr. Roberts), Mirfield, (Mr. Hobkirk). Hops are said to have been intro- 

 duced into England from the Netherlands about 1524, when the 

 citizens of London petitioned Parliament against their use, alleging that 

 " it would spoyle the taste of drinke and endanger the people." In this 

 same petition " Newcastle coals" were appealed against as another 

 " nuisance," — hops being the other. 



(To be contiymed. ) 



