1066 APPENDIX. 



No. 24, for " Scirpus microcarpus Presl ", read " Scirpus rubrotinctus 

 Fernald." S. microcarpus occurs only on the Pacific slope. 



P. 180, at end of Scirpus, add: 



30. Scirpus atrocinctus Fernald. Blackish Wool-grass. Similar to S. 

 cy per inns L., S. Eriophorum Michx., but the culm slender, about 1.5 mm. 

 thick at the top, the bases of the involucral leaves black or nearly so; 

 inflorescence loose and ample with the spikelets pedicelled, or these in a 

 subcapitate cluster; scales greenish black; bristles light brown or olive- 

 brown. In wet places, Newf. to Manitoba, Saskatchewan, Conn., Penn. 

 and Iowa. 



For "Scirpus cyperinus Eriophorum" read "Scirpus Eriophorum 

 Michx." The plant proves to be specifically distinct from S. cy permits and 

 from the foregoing. 



P. 1 86, after Rynchospora gracile"nta, insert: 



10a. Rynchospora Smallii Britton. Small's Beaked-rush. Culms 

 rather stout, 1.4 m. high or less, tufted. Leaves flat, 2-5 mm. wide; 

 spikelets numerous in several rather loose clusters, 3-4 mm. long, fusi- 

 form, their scales brown; bristles upwardly barbed, as long as the achene 

 and tubercle; achene narrowly obovate, brown, smooth, shining, 1.5 mm. 

 long, the smooth tubercle about one-half as long. Bogs and damp 

 hillsides, Pa. and N. C. July-Aug. 



P. 188, after Scleria pauciflora, insert: 



Scleria ciliata Michx. Hairy Nut-rush. Resembles Scleria pauciflora, 

 but is usually stouter, 3-6 dm. high, pubescent; bracts of the flower-clus- 

 ters ciliate; achenes subglobose to globose-ovoid, 3 mm. long, acute, 

 roughened by short ridges or projections; hypogynium a narrow obtusely 

 3-angled border supporting 3 tubercles, these often 2-lobed. In pine 

 lands, Va. to Fla., Mo. and Tex. Also in the W. I. June-Sept. 



P. 189, before Uncinia, insert: 



2. Kobresia elachycarpa Fernald. Tufted; culms compressed, wiry, 

 5.5 dm. high or less, rough toward the top. Leaves 1-2 mm. wide, flat, 

 much shorter than the culms; spike 1-2.5 cm - l° n g; spikelets 2-7, 

 staminate, androgynous, or pistillate; scale ovate; glume ovate, connate 

 at base, emarginate; stigmas 2, elongated; stamens 2; achene oblong, 

 truncate, nerveless, about 1.5 mm. long. Me. June-July. 



P. 223, after Carex interior capillacea, insert: 



176a. Carex seorsa E. C. Howe. Howe's Sedge. Loosely tufted ; culms 

 weak, 6.5 dm. high or less. Leaves pale green, soft, 2-4 mm. wide, 

 shorter than the culms; spikes 2 to 6, subglobose to oblong, 6-20- 

 flowered, remote, or the upper approximate, 3 . 5-7 mm. long, the lowest 

 one often subtended by a filiform tract, the uppermost with many stam- 

 inate flowers at its base; scales membranous, ovate, acute, much shorter 

 than the perigynia; perigynia ovate-elliptic, widest near the middle, 

 strongly nerved., tapering to both ends, substipitate, with a very short 

 and smooth beak. In wet woods and swamps, Mass. to S. N. Y. and 

 Del. May-June. 



P. 226, before Carex scoparia, insert: 



192a. Carex Crawfdrdii Fernald. Crawford Notch Sedge. Culms 

 slender, tufted or solitary, 1-3 dm. tall, rough above. Leaves 2.5 mm. 

 wide or less, often exceeding the culms; spikes oblong or ovoid, bluntish, 

 greenish brown, clustered in an oblong head, the lower one often sub- 

 tended by a filiform bract which sometimes surpasses the head; peri- 

 gynia narrowly lanceolate, firm, about 4 mm. long, 1.5 mm. wide or 

 less. Newf. to Assiniboia, Mass., N. Y., and Mich. June-Sept. 





