APPENDIX. IO67 



P. 227, after Carex leporina, insert: 



194a. Carex Orone"nsis Fernald. Orono Sedge. Loosely caespitose, 

 1 m. high or less, the slender culms erect, rough above. Leaves 2.5-4 

 mm. wide, shorter than the culms; spikes 3-9, oval to obovoid, 5-10 mm. 

 long, ascending, dark brown, acutish, clustered in an oblong-cylindric 

 spike; scales scarious-margined, ovate, acutish, about equalling the 

 perigynia; perigynia narrowly lanceolate, 3.5-4.5 mm. long, narrowly 

 winged above. Woods, thickets, and fields, Orono, Me. June-July. 



P. 227, after Carex adusta, insert: 



196a. Carex aenea Fernald. Wiry Sedge. Culms wiry, smooth, 

 12 dm. high or less, tufted, much longer than the leaves, the top nod- 

 ding. Leaves flat, 2-4 mm. wide; spikes obovoid, light brown, the 

 upper close together, the lower separated; perigynia ascending, len- 

 ticular, ovate, 4-5 mm. long, about one-half as wide as long, brown, 

 the inner face nerveless or few-nerved toward the base. Newf. to 

 Alberta, Mass., N. Y. and Mich. June-Aug. 



P. 228, after Carex tenera invisa, insert: 



200a. Carex suber€cta (Olney) Britton. Prairie Sedge. Culms 

 tufted, slender but stiff, erect, 6-9 dm. high, longer than the leaves, 

 rough above. Leaves flat, 2-3.5 mm . wide; spikes 2-6, clustered at 

 the top of the culm, ovoid or oblong, acutish, 7-10 mm. long, ferru- 

 ginous; scales ovate-lanceolate, acuminate or short-awned, appressed, 

 shorter than the perigynia; perigynia ovate, about 5 mm. long and 

 one-half as wide as long, appressed or closely ascending, broadly winged, 

 rather abruptly narrowed into the sharp beak (C. tenera var. suberecta 

 Olney; C. foenea var. ferruginea A. Gray, not C. ferruginea Scop.). Ohio 

 to Mich., 111. and Iowa. 



P. 229, after Arisaema triphyllum, insert: 



1 a. Arisaema Stewardsonii Britton. Stewardson Brown's Indian 

 Turnip. Dark green, 3-6 dm. high. Leaf-segments 3, lanceolate, acu- 

 minate, thin, narrowed at the base, shining on both sides, 4-20 cm. long; 

 spathe about as long as its peduncle, strongly fluted, green with white 

 stripes, the dilated part acuminate; spadix slender, blunt; fruits 8-10 mm. 

 in diameter. In wet woods, growing among Sphagnum, Penn. to Vt. 

 Differs from related species by its fluted spathe and shining leaves. 

 Type from Tannersville, Penn., collected by Stewardson Brown, E. P. 

 Bicknell and N. L. Britton, July 4th, 1901. 



P. 236, after Xyris Caroliniana, insert: 



4a. Xyris Congdoni Small, n. sp. Congdon's Yellow-eyed Grass. 

 Scapes relatively stout, 4-6.5 dm. tall. Leaves linear from a broad 

 base which is sometimes over 1 cm. wide, the longer ones nearly as 

 long as the scapes; head oval or nearly so, 11— 16 mm. long; bracts 

 erose at the top, the larger ones 6-8 mm. long; lateral sepals 6-7 mm. 

 long, the broad keel crested above the middle. Differs from A'. Caro- 

 liniana in the greater size of the plant, the broader greatly elongated 

 leaves, the more numerous bracts of the head, and the longer lateral 

 sepals. Low grounds, Mass to N. J., near the coast. Type from South 

 Kingston, R. I. Aug.-Sept. 



P. 237, after Eriocaulon septangulare, insert: 



ia. Eriocaulon Parked Robinson. Parker's Pipe-wort. Tufted, 

 nearly glabrous, 6-1 1 cm. high. Leaves linear-lanceolate, 3-4 mm. wide 

 at the base, 3-6 cm. long, 7-9-fenestrate-nerved; scapes erect, sub- 

 rigid; heads 3-4 mm. in diameter, campanulate at the base in fruit 

 (ellipsoid in E. septangulare) ; flowers erect (the outer ones spreading in 



