SUB- CLASS II. DICOTYLEDONES. 181 



Portulaca oleracea L. Purslane. A common introduced weed. 

 Calmar, etc. 



Family 6 . Cmryophyllacece . 



Agrostemma githago L. (Lychnis githago Scop.) Introduced 

 weed. Reported by Fitzpatrick. 



Silene stellata (L.) Ait. Starry Campion. Along borders 

 of thickets, etc. Common. Calmar. 



Silene alba Muhl. Western White Campion. In moist 

 grounds, along borders of thickets. Not rare. Calmar, etc. 



Silene antirrhina L. Sleepy Catchfly. In dry places. Re- 

 ported by Fitzpatrick. 



Lychnis alba Mill. (L. vespertina Sibth.) White Campion. 

 Introduced weed. Decorah (Arthur), Hesper. 



Saponaria officinalis L. Soapwort. Introduced. Locally 

 common in waste places, etc. Ft. Atkinson. 



Vaccaria vaccaria (L) Britt. (Saponaria vaccaria L.) Cow- 

 herb. Introduced. Reported by Fitzpatrick. 



Alsine media L. (Stellaria media Smith.) Common Chick- 

 weed. Common weed in waste places, etc. Introduced. Hes- 

 per, etc. 



Alsine longifolia (Muhl.) Britt. (Stellaria longifolia Muhl.) 

 Long-leaved Stitchwort. Common in wet meadows, etc. De- 

 corah (Goddard). 



Cerastium longipedunculatum Muhl. (C. nutans Raf.) Nod- 

 ding duckweed. Common in moist woods, etc. Decorah (Sav- 

 age), Hesper, Ft. Atkinson. 



Cerastium arvense L. Field Chickweed. Reported by Fitz- 

 patrick. 



Cerastium arvense oblongif olium (Torr.) Holl. & Britt. In 

 rocky places. This variety was founded on Winneshiek county 

 material.* Decorah (Holway). 



Moehringia lateriflora (L.) Fenzl. (Arenaria lateriflora L.) 

 In moist, shaded places. Decorah (Savage). 



•See Bull. Torrey Bot. Club, Vol. XIV, p. 48, 1887. 



