SUB-CLASS II. DICOTYLEDONES. 181 
Portulaca oleracea L. Purslane. A common introduced weed. 
Calmar, ete. 
Family 6. Caryophyllacee. 
Agrostemma githago L. (Lychnis githago Scop.) Introduced 
weed. Reported by Fitzpatrick. 
Silene stellata (L.) Ait. Starry Campion. Along borders 
of thickets, ete. Common. Calmar. 
Silene alba Muhl. Western White Campion. In moist 
grounds, along borders of thickets. Not rare. Calmar, ete. 
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 (Li) 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, ete. De- 
corah (Goddard). 
Cerastium longipedunculatum Muhl. (C. nutans Raf.) Nod- 
ding Chickweed. Common in moist woods, etc. Decorah (Sav- 
age), Hesper, Ft. Atkinson. 
‘Cerastium arvense L. Field Chickweed. Reported by Fitz- 
patrick. 
Cerastium arvense oblongifolium (Torr.) Holl. & Britt. In 
rocky places. This variety was founded on Winneshiek county 
material.* Decorah (Holway). 
Moehringia lateriflora (.) Fenzl. (Arenaria lateriflora L.) 
In moist, shaded places. Decorah (Savage). 
*See Bull. Torrey Bot. Olub, Vol. XIV, p. 48, 1887. 
