APPENDIX. 



This appendix contains descriptions of additional plants found within the region 

 covered by this work during the several years that have elapsed since the first edition 

 was published, and corrections. 



Page 141, in first line under Phragmites Phragmites for "1-5 dm." read 

 "1-5 m." 



Page 62, after Andropogon Tracyi, insert : 



5a. Andropogon Bakeri Scribn. & Ball. Stems stout, 8-12 dm. tall, much- 

 branched above, the branches in 3's or 4's, the lower internodes much compressed; 

 leaf -sheaths longer than the internodes, glabrous or nearly so, the lower ones com- 

 pressed, equitant; blades up to 4 dm. long, 47 mm. wide, flat, a little rough above; 

 spathes 4-5 cm. long: racemes 1.53 cm. long, the raehis slender, the internodes 

 shorter than the sessile spikelets, densely clothed with silky hairs longer than them- 

 selves; sessile spikelets linear-lanceolate, 5 mm. long, the callus barbed with hairs 

 about 2 mm. long, the first scale with the keels hispidulous, the keel of the second 

 scale also hispidulous, the fourth scale acuminate, 2 -toothed at the apex, bearing a 

 slender straight awn 6-10 mm. long ; pedicellate spikelets entirely wanting, the pedicel 

 longer than the sessile spikelets and densely clothed with long white hairs. Differs 

 from A. Tracyi in the stouter much-branched stem, the wider leaf-blades, and the 

 short awns. 



In pinelands, peninsular Florida. Fall and winter. 



Page 124, after Sporobolus Curtissii, insert: 



lla. Sporobolus teretifolius Harper. Stems tufted, 6-8 dm. tall, erect, wiry : 

 leaves glabrous; blades laterally compressed, oval in cross-section, less than 1 mm. 

 wide: panicle diffusely branched: spikelets yellowish, 3^ mm. long, on longer capil- 

 lary diverging pedicels, the flowering scales acute. Differs from S. Curtissii and 8. 

 Floridanus, in the laterally compressed leaf -blades. 



In moist pine lands in the Altamaha Grit region, southern Georgia. Summer. 



16a. Sporobolus Torreyanus (K. & S.) Nash. Stems 2-7 dm. tall, from a 

 horizontal rootstock, stout, simple, much compressed, smooth and glabrous: leaf- 

 sheaths compressed, overlapping, sometimes scabrous at the summit; blades 1.25-2.5 

 dm. long, 2 mm. wide or less, folded, slightly rough: panicle 1-2.5 dm. long, the 

 branches erect or ascending, the lower 5-7.5 cm. long: spikelets about 1.75 mm. 

 long. Differs from S. asperifolius in the erect simple stems and the elongate leaf- 

 blades. 



Near pine-land ponds and in bogs, New York to Georgia. Fall. 



Page 148, after Eragrostis simplex, insert : 



14a. Eragrostis amabilis (L.) W. & A. Stems tufted, erect or ascending, 1.5-5 

 dm. tall: leaves glabrous; blades erect, up to 1 dm. long, 35 mm. wide: panicle up 

 to 1.5 dm. long, its branches ascending: spikelets ovate to oblong-ovate, 5-7 mm. long, 

 about 3 mm. wide, pale, flushed with purple, the lower flowering scales spreading. 

 Differs from E. simplex in the broader and shorter spikelets which are less crowded. 



In moist soil along railroads and in ditches, southern Georgia and northern Florida. 

 Introduced from the Old World. Spring to fall. 



Page 161, after the last line "Perianth present," Eynchospora should be con- 

 trasted with Schoenus, thus: 



Achene 3-angled, without a tubercle. 16. SCHOENUS. 



Achene lenticular, with a tubercle. 19. RYNCHOSPORA. 



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