STATE H0RTICU1,TURAL SOCIETY. 477 



ROSACEAE. 



Geum, Album, Gmelin, White Avens. 



Becoming abundant along roadsides and borders of woods. 



Potentilla norvegica, L. 



Common in waste places, fields and gardens. 



Agrimonia eupatoria, L. Agrimony. 



Common along roadsides, abundant in Europe, and trouble- 

 some in Southern Eussia (Koppen), and especially as the fruits 

 fasten themselves to the fleece of sheep. Baron von Mueller 

 reports it as common in Australia. 



Eosa blanda, Ait. Early Wild Eose. 



Sometimes common in grain fields, where it causes annoyance 

 in harvesting. 



ONAGRAEIEAE. 



Oenothera biennis, L. Common Evening Primrose. 

 In fields and waste places with a rather loamy soil. It is well 

 known in Europe, where it has become naturalized. 

 Oenothera rhombipetala, Nutt. Evening Primrose. 

 Especially common on sandy prairies. 



CUCURBITACEAE. 



Sicyos angulatus, L. One Seeded Star Cucumber. 

 Along borders of streams and in moist places. 



FICOIDEAE. 



Mollugo verticillata, L. Carpet Weed. 



Common in dry fields, an immigrant from the South. 



UMBELLIFERAE. 



Gonium maculatum, L. Poison Hemlock. 



Not particularly troublesome as a weed, but from the fact that 

 it and the following are very poisonous, they ought to be men- 

 tioned: 



Cicuta maculata, L. Water Hemlock. 



Grows in marshes and swamps. 



Peucedanum sativum, Benth. & Hooker. Wild Parsnip. 



Common in and about gardens, especially where Parsnip cul- 

 ture has been carried on, rapidly spreading. 



Dancus Carota, L. Wild Carrot. 



