FLORA OF WASHINGTON AND VICINITY. 129 



Carex platyphylla, Carey. 



Last of April or first of May. 



Carex Careyana, Torr. 



Dead Run, three miles above Langley, Va.(Dr. Vasey, May 15, 1881). 



Carex retrocurva, Dew. 



Rock Creek (Dr. Vasey). 



Carex digitalis, Willd. 



Last of May or first of June. 



+ Carex laxiflora, Lam. 

 Last half of May. 



Carex laxiflora, Lam. , var. styloflexa, Boott. 

 Last half of May. 



Carex laxiflora, Lam., var. plantaginea, Boott. 

 Last half of May. 



Carex laxiflora. Lam., var. intermedia, Boott. 

 Last half of May. 



Carex laxiflora, Lam., var. blanda, Sulliv. 

 Last half of May. 



Carex laxiflora. Lam. , var. gracillima, Boott. 

 Middle of May. 



Carex Hitchcockiana, Dew. 

 Last half of May. 



Carex oligocarpa, Schk. 

 First half of Juno. 



Carex umbellata, Schk. 



In crevices of rocks, top of High Island; rare. Affected with a blight. Last 

 half of April. 



Carex Enunonsii, Dew. 



Last of April or first of May. 



Carex nigro-marginata, Schw. 



East of Fort Mahan (Dr. Vasey); above Bladensbuig (Professor Chickering). 



t Carex Peiinsylvanioa, Lam. 

 May. 



t Carex varia, Muhl. 



Dry Hills, Rock Creek, «fec. (Dr. Vasej). 



t Carex pubescens, Muhl. 



High Island. Last week in May. 



t Carex miliacea, Muhl. 

 Middle to end of May. 



Carex debilis, Michx. 



Last week in May to middle of June. 

 Bull. l^at. Mus. No. 22 9 



