ERATUM. 



Page 21. No. 32. for V^gelia read Vogelia. 



p. 22. after line 8, " Georgia," p. 43, read " Near the margin of 

 sandy ponds, Sec." lines 12 and 13. 



p. 48. No. 74. for Bruchmaxxia, read Beckmaxxia, 8 lines 

 from the bottom of the same page, ^ov mucrone read mucro. 



p. 55. No. 81. for Orthopogon hirteUum, read O. * parvifoUwn, 

 leaves lanceolate, nearly flat; spike compound; spikelets 5 

 to 8-flowered; awns viscid. 



p. 67. No. 26. for I*oa obtusa, read P. * penmi'h'anica. 



p. 69. No. 97- after Bviza canademis, read '' Obs. Leaves long 

 and scabrous on the margin, stipules truncate, membrana- 

 ceous; panicle pyramidal, branches pendulous; spikelets 

 ovate, about 7-5o\vered; calix much smaller than the glume 

 of the corolla; corolla green and obsoletely striate, exte- 

 rior valve oboval, subacute, interior scarcely smaller, very 

 obtuse. Hab. On tlie margins of sphagnous swamps, in 

 New Jersey, near Pliiladelphia, Sec. Nearly allied to Poa 

 obtusa^ Muhl. Gram. Descript. Perhaps not the plant of 

 Michaux. What I had first described for it, appears to be 

 a mere variety of Poa nc^Tata, which seems also to be a 

 Briza. 



p. 82. No. 114. for « Cfl//:c 2-valveJ, 2-flowered," read, Calix 

 2-valvcd. 2 or3-fl<)wered. 



]'. 92. No. 129. for *•' Stamina exserled," read, Stijle exserted. 



]). 114. No. 171. Biitschia longifora is Lithospennum an^-iistifo- 

 liiim of Herb. Muhl. 



}3. 158. No. 234. for *' intermediate, set?e none," read '•' interme- 

 diate setae none." 



p. 177. for Glyceria, (a name already employed for another 

 genus) read, Choxdrocarpus, so called from the cartila- 

 ginous induration of the fruit. 



p. 197. C^itt-iplexj, 5 lines from the bottom, for "this and tiie 

 preceding genus," read " tins and the following genus." 



p. 208. Strepsia; for " capsule 1-celled," See. read, Capsule 

 3-celled, 3-valved, dissepiments marginal. 



p. 289. for " 313. Stellaria," read, 413, and add 100 to the 

 following numbers. 



Vol. II. — p. 73 (deome) 13 lines from the top, for *' .5-leav- 

 ed,'* read 4-leaved, — and 10 lines from the bottom of the 

 same page, for " 5 -toothed" read, 4-toothed. 



