Bicknell : Ferns and flowering plants of Nantucket 497 



nearly orbicular, abruptly narrowed or rounded to the narrow 

 and conspicuous somewhat rough-edged beak ; scales very thin, 

 even the lowest acute, pale stamineous ; achene definitely larger 

 and plumper than that of the preceding, and elliptic-oblong in- 

 stead of ovate. 



The two sedges here compared appear to me to be distinct, 



especially by comparison of the perigynia and achenes, and if 



Professor Fernald's var. echinodes is properly represented by the 



plant here referred to it, I should feel that there was little reason 



to doubt that it should stand as a species. 



Carex silicea Olney. 



Common in sand, mostly along and near the beaches, but 

 sometimes on the higher parts of the island quite away from im- 

 mediate saline influence — spikes well developed June 7; mostly 

 dried by September. 



Carex hormathodes Fernald, Rhodora 8 : 165. 1906. 



Very common in low, open grounds, and apparently less re- 

 stricted to the neighborhood of salt marshes than in many localities 



along the coast. 



dried 



J 



or gone by September. 



M 



Even's list. 



than 

 the 



The so-called var. invisa (Boott) seems to be nothing more 

 a reduced and often late-flowering state of the plant to which 



ded 



r e is no greater reason for according varietal status than for 

 ucing varieties from parallel reduced states of almost all of its 



n< *r relatives in the Ovales. 



Where this species grows in abundance with C. albohite scats, 



occasional plants are so nearly intermediate that, except for the 



ab sence of actual proof, they might well be pronounced hybrids. 



Likewise, specimens were found which appeared quite intermediate 



Carex 



scop 

 albolutescens Schwein. 



Common near the beaches and salt marshes but also in wet 

 Places generally. In fresh-water swamps and about the borders 

 of Ponds a form occurs with greener, softer leaves and culms, and 

 ofte n longer heads of less approximate spikes, which are longer 

 and more acute, with longer and narrower perigynia, narrower 

 achen e and more stramineous scales ; in this form the spikes be- 



