T. Holm — Studies in the CyperacecB. 487 



vel aristata saepe obtusa pellucida lineata, angustioribus dnplo 

 brevioribus." 



This species lias been collected in Alaska, British Columbia, 

 Vancouver Island, Washington, Oregon and California ; it 

 grows in marshy ground, on borders of ponds, etc., and ascends 

 to an elevation of 3,500 feet in the Olympic mountains. 



Carex Sehottii Dew. 



The latest disposition that has been made of this species is 

 to regard it as identical with Q. Barbaras Dew., a suggestion 

 proposed by Professor Bailey.* But from the statement by 

 this author that C. Barbaras, is closely allied to C. aquatilis 

 Wahlenb., it is evident that Professor Bailey has not had access 

 to authentic material ; moreover, the specimens cited from 

 Vancouver Island and Washington do not agree at all with 

 the diagnosis of C. Barbara} or of C. Sehottii. On the other 

 hand, the plant described as 0. obnujpta by Professor Baileyf is 

 the real C. Sehottii Dew. 



The diagnosis as written by Dewey;}: reads as follows : 



"Spicis staminiferis terminalibus 3-5 erectis nigro-rubris 

 approximatis prope geminatis cylindraceis, superiore longa 

 3-unciali medio inflata, inferioribus brevioribus sessilibus con- 

 tiguis vel intima remotiore et interdum geminata ; pistilliferis 

 3 raro 4 perlongo-cylindraceis gracillimis 6-8 uncialibus per- 

 laxinoris insequaliter pedunculatis, inferioribus longe peduncu- 

 latis folioso-bracteatis basi vaginatis vix fructiferis vel abortivis, 

 cum squamis oblongis arctis obovatis vix acutis ; perigynio 

 carente vel nimis immaturo ; culmis superne scabris subpros- 

 tratis cum foliis bracteisque viridi glaucis. Banks and rivers, 

 Santa Barbara, California ; Parry." 



Since then the species has been collected by • Bolander (No. 

 1570) in salt marshes near Fort Point, Golden Gate, Califor- 

 nia, and in. these specimens the perigynia are mature; the 

 late Mr. C. B. Clarke identified Bolander's specimens and it 

 was through his kindness that the writer received mature speci- 

 mens so as to ascertain the identity of Professor Bailey's O. 

 obnujpta with the present species of Dewey. In Carex Sehot- 

 tii the perigynia are shining, dark reddish brown, orbicular, 

 shortly stipitate, glabrous, or with a small spine near the short, 

 entire beak ; the perigynium is much shorter than the oblong- 

 lanceolate, pointed scale. 



The species is a near ally of C. magnified, possessing the 

 same very dark-colored spikes, the coriaceous perigynia, which 

 are more or less orbicular and much shorter than the squama. 



* Memoirs Torrey Bot. Chib, vol. i, p. 44, 1889. 



f Proceed. Calif. Acacl., vol. iii, p. 104, 1893. 



\ Emory's Report U. S. and Mex. Bound. Survey, p. 231, 1858. 



