456 



Scientific Proceedings, Royal Dublin Society. 

 . Yellow Chamomile. 

 . Corn Sowthistle. 



A° Anthemis tindoria, L., 



A° „ austriaca, Jacq 



Sonchus arvensis, L., 



h." Panicum dichotomum, L.. 

 Hokus lanatus, L., 

 Serrafakus hordeaceus, 

 Godr.), 

 (Bromus mollis, L.) 

 Bromus sterilis, L., 

 Runiex ohtusifolius, L., . 

 „ acetosa L., . 

 A° Omithopus satimis, Bret. 

 (0. perpiisillus, L.) 

 * Oarum earvi, L., . 

 Sherardia arvensis, L., . 

 Lapsana communis, L., . 

 Picris spintilosa, Bertol. 



(P. stricta, Jord.) 

 Crepis mrens, L., . 

 A° „ biennis, L., 

 Sonchus arvensis, L., 



Cocksfoot. 



. Forked Panieum. (N. A.) 

 Yorkshire Fog. 

 Gren. & 



. Soft Brome Grass. 



. Barren Brome Grass. 

 . Broad-leaved Dock. 

 . Common Sorrel. 

 Bird's-foot. 



. Caraway. 



. Field Madder. (W. E.) 



. Nipplewort. (W. E.) 



(S. E.) 



Smooth Hawk's-beard. 

 Eough Hawk's-beard. (W. E.) 

 Corn Sowthistle. 



Crested Dogstail, 



{Cynosurus cristatus L.) 

 Rumex .acetosella, L., . 

 Cerastium vulgatiim, L., 



(0. triviale. Link.) 

 Spergula arvensis, L., . 

 Ranunculus hulbosus, L., 

 Bellis perennis, L., . . 

 Matricaria inodora, L., . 



{Pyrethrum inodorum.) 

 Chrysanthemum leucanthemum, L., 

 Hypochaeris radicata, L., 

 Leontodon autumnalis, L., 

 Sonchus asper. Hill, 



Sheep's Sorrel. 

 Mouse-ear Chickweed. 



Spurry. 



Bulbous Crowfoot. 



Daisy. 



Scentless Feverfew. 



Ox-eye Daisy. 

 Cat's-ear. (N. Z.) 

 Autumnal Hawk's-bit. 

 Eough Sowthistle. 



All these weeds grow throughout Ireland and, to that extent, indicate the 

 Irish origin of the crested dogstail tested. 



