128 FLORA OF WASHINGTON AND VICINITY. 



Carex straminea, Schk., var. aperta, Boott. 

 Common (Dr. Vasey). 



Carex vulgaris, Fries. 



Chain Bridge (Dr. Vasey, May 22, 1881.) 

 Carex torta, Boott. 



Broad Branch, (Dr. Vasey); Virginia shore of the Potomac above Rosslyn. Last 

 half of May. 



Carex angustata, Boott. [C stricta, Lam.] Tussock Skdge. 

 Middle of May. 



t Carex crinita. Lam. 

 First half of July. 



Carex gynandra, Schw. 

 .Tune. 



Carex Shortiana, Dew. 



First half of May. 



Carex tetanica, Schk. 



Oxen Rim; High Island. Last half of May. 



Carex tetanica, Schk., var. Woodii, Oluey. 



Very peculiar in habit. Insane Asylum ; Rock Creek, opposite Brightwood. Last 

 of May or first of June. 



t Carex granularis, Muhl. 

 Last week in May. 



Carex glaucoidea, Porter. 

 Rock Creek (Dr. Vasey). 



Carex pallescens, L. 



Spikes mostly 4, with staminate flowers at the apex. Last of May or first of June. 



Carex pallescens, L., A-ar. undulata, Gray. 

 Insane Asylum. First of June. 



Carex grisea, Walil. 



A large and a small form, the latter of which is probably the var. angustifoJia, 

 Boott. May. 



Carex gracillima, Schw. 



Back Lick Run; Corcoran's Woods. First half of May. 



t Carex virescens, Muhl. 



Last of May or first of June. 



Carex virescens, Muhl., var. elliptica, Olney. 

 First half of June. 



Carex triceps, Michx. 



A form occurs with staminate flowers at the apex of the spikes. First half of 

 June. 



