Stellaria CARYOPHYLLACEAE Holosteum 



S. media (L). Cyrill. Common Chickweed. 



Common throughout. Late March, April. Nat. from Europe. 



S. aquatica (L.) Scop. 



Frequent on muddy banks of the Brandywine Creek, from the 

 state Hne nearly to tidewater. June, mid-July. Introd. from 

 Europe. 



Cerastium L. Mouse-ear Chickweed 



C. arvense L. 



Rare, in rocky soil of the Piedmont: "Rocky places" (NC), E. 

 Tatnall, without date (D); Bald Friar (Ce), Fogg, 1901, 14 May 

 1927 (P, A); woods 1 mi. s. of Rowlandsville (Ce), R. R. Tatnall, 

 5213, 22 May 1945 (T). 



Var. villosum Hollick & Britton. 



Common on serpentine soil of New Castle and Cecil Counties. 

 Late April to June. "^ 



C. vulgatum L. Larger Mouse-ear Chickweed. 



Common throughout, in fields and waste places. May, June. 

 Nat. from Europe. 



C. viscosum L. Mouse-ear Chickweed. 



Frequent in grassy places. Piedmont and Coastal Plain. May, 

 June. Nat. from Europe. 



C. semidecandrum L. 



Rare, in dry sandy soil of the Coastal Plain: roadside at cross- 

 roads 1 mi. n. of Bethel (S), R. R. Tatnall, 3678, 7 May 1938 (T, P); 

 same place and date. Long, 51950 (A). Adv. from Europe. 



C. nutans Raf. Nodding Chickweed. 



Common in woods and meadows of New Castle and Sussex 

 Counties, and probably farther south. Late April, May. 



Holosteum L. Jagged Chickweed. 



H. umbellatum L. 



Locally abundant in dry grassy soil of fields and roadsides; 

 known from New Castle, Kent (Del.), S.ussex and Caroline Counties. 

 Mid-April, early May. Nat. from Europe. 



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