Bicknell : Ferns and flowering plants of Nantucket 49o 



broader and shorter paler green leaves of obviously different cellu- 

 lar structure under a lens, larger and more numerously flowered 

 spikelets, and shorter, broader, and more obtuse scales of firmer 

 texture, differences which are especially obvious in the scales in- 

 vesting the clavate base of the terminal spike ; the perigynia of 

 C stmlis, although not always broader, are of thicker texture, 

 more strongly nerved and thick-margined, paler in color and less 

 abruptly narrowed to a shorter, broader, more graduated, and 

 rougher-edged beak. 



As compared with C. cephalantha, the leaves are longer, softer, 

 a"d of thinner texture, the spikes fewer, the scales paler, shorter, 

 *«d much less attenuate and acute ; the perigynia, in addition to 

 tie deltoid base, are much thinner, more coarsely nerved and 

 much more abruptly narrowed to a narrower, shorter, and less 

 rough-edged beak. 



The plant might be compared to an overgrown Carex interior 

 wpillacea Bailey, from which, however, it is at once distinguished 

 y the prominently narrow-beaked perigynium. 



Although reluctant to add another species to this difficult 

 group of sedges, I do not know how else to report this plant as a 

 member of the Nantucket flora. There it grew in abundance, 

 orming large tufts in a very wet bog below the cliff where it was 

 Elected on June 21. 



Ca rex delicatula nom. nov. 



1893. 



ipillacea Bailey, Bull. Torrey Club 20: 426. 



1908. 



L - scirpoides capillacca Fernald, Rhodora 10 : 47, 4§. 



B °gs and wet thickets, common. Forming close tufts of very 

 J^erous, capillary, flexuous culms, 2-7 dm. long, the elongated 

 ^es mostly less than 0.5 mm. wide. In full flower June 7; 

 Persisting spikelets are sometimes to be found as late as the third 

 * eek «'n September. 



Car ex seorsa E. C. Howe. 



Sparingly i n damp thicket at the west side of Trot's Swamp ; in 



abu ndan 



c arex 

 C 



J 



di sjuncta (Fernald) comb. nov. 



wneseens var. disjuncta Fernald, Proc. Amer. Acad. 37 



438. 



1902. 



