APPENDIX 1325 



oblong or oblong-cylindric, sessile or nearly so, 5-20 mm. long, approximate, the 



uppermost staminate at base: scales with green 3-nerved center and hyaline often 



brownish tinged margins, triangular-lanceolate, strongly rough-cuspidate; perigynia 



swollen, nearly orbicular in cross-section, squarrose, tapering at apex, coarsely ribbed, 



green, 2.5-3 mm. long: achenes triangular, tipped with the bent persistent style. — 



Differs from C. Caroliniana in the longer green perigynia and the rough cuspidate 



scales. 



In dry woods and thickets, Rhode Island and New York to Kansas, northwestern 

 Florida and Texas. Spring and summer. 



P. 213, after Carex tetanica, insert: 



61a. Carex Biltmoreana Mackenzie. Eootstocks stout, interwoven. Stems and 

 scapes strongly purplish tinged at base, 3-7 dm. high, slender, the lower leaves not 

 blade-bearing: larger leaf -blades 5 mm. wide: bract sheaths 5-30 mm. long; staminate 

 spike strongly rough peduncled: pistillate spikes 1-3, erect, distant, usually strongly 

 peduncled, 1.5-3.5 cm. long, loosely or somewhat closely flowered above: scales ovate, 

 obtuse to cuspidate, usually purplish-brown tinged: perigynia obovoid, many-nerved, 

 2.5-3.5 mm. long, abruptly rounded at apex and minutely beaked or beakless, the 

 orifice entire. — Differs from C. tetanica in its stout interwoven rootstocks, in the 

 stems being strongly purplish-tinged at the base and in the lower leaves not being 

 blade-bearing. 



In stony soil, mountains of North Carolina. Spring and early summer. 



Page 214, after Carex Meadii, insert: 



62a. Carex Albiirsina Sheldon. Leaf -blades 7-15 mm. wide, soft: scapes 



narrowly winged and roughened above, 1-5 dm. long: staminate spike sessile or nearly 



so: pistillate spikes 2-4, the lower peduncled and distant, the upper approximate and 



sessile or nearly so : scales broadly oblong, half length of perigynia, very truncate, 



white with green midrib: perigynia obovoid, 3-4 mm. long, many-nerved, the beak 



abruptly bent. — Differs from C. laxiflora in its broad leaf -blades and truncate scales. 



In rich rocky woods, Quebec, Vermont and Minnesota to Virginia, Tennessee and 

 Missouri. 



Page 214, under Carex laxiflora, omit varieties, and insert : 



63a. Carex bl^nda Dewey. Leaf -blades 5-9 mm. wide, soft : sheaths very 



loose, their margins much wrinkled ; scapes thick but weak, strongly triangular, 



roughish above, 1-6 dm. high: sterile shoots forming conspicuous culms: staminate 



spike sessile or short-peduncled : pistillate spikes 2-4, oblong or linear-oblong, 7-25 



mm. long, 3.5-5 mm. wide, closely 8-25 flowered, erect, closely contiguous or the lower 



widely separate: scales ovate, the lower with awn about length of body: perigynia 



obovoid 3.5 mm. long or less with abruptly bent entire minute beaks. — Differs from 



C. laxiflora in the thick scapes, loose sheaths with wrinkled margins, and usually 



sessile staminate spike. 



In woods and thickets, Maine and Ontario to Minnesota, south to Florida and Oklahoma. 

 Spring and summer. 



Page 214, after Carex striatida, insert: 



65a. Carex dnceps Muhl. Leaf-blades 5-15 mm. wide, soft : scapes weak, 1.5-4 

 dm. high: sterile shoots reduced to tufts of leaves: basal leaves rarely more than 3 

 dm. long, their sides not strongly parallel: staminate spike sessile or short-peduncled: 

 pistillate spikes 3-4, narrowly linear, 15-30 mm. long, 2-3 mm. wide, loosely flowered, 

 erect, the lower distant and long-peduncled : scales ovate, acuminate or short-awiied : 

 perigynia narrowly obovoid, 3-4.25 mm. long, erect-ascending, with straight or some- 

 what oblique conspicuous beak. [C laxiflora pattdifolia Carey.] — Differs from C. 

 striatida in the erect-ascending, somewhat smaller, perigynia and in the shorter basal 

 leaves with sides not strongly parallel. 



In woods, Maine to Michigan, south, mostly in the mountains, to Alabama and Ten- 

 nessee. Spring and summer. 



Page 214, after Carex laxiculmis, insert: 



69a. Carex magnifolia Mackenzie. Leaves glaucous: blades 5-8 mm. wide, 

 1.5-3.5 dm. long, numerous and very conspicuous: scapes smooth, slender, 1-2 dm. 

 high, much shorter than the leaves: lower bracts foliaceous: staminate spike sessile or 

 nearly so, about 1 cm. long: pistillate spikes usually 3, erect, the lowest long- 

 peduncled, nearly basal, the upper two and the staminate contiguous, loosely 5-14 



