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ADDITIONS AND CORRECTIONS, 
After L. integrifolium insert : 2 
Var. heterophyllum. Watson, Am. Naturalist, 9. 268. 
L. montanum, var. (7) alpinum. Watson, King’s Rep. 5. 29. 
Under L. intermedium insert: — Macoun & Gibson, Trans. Bot. Soc. Edinb. 
12.316. Brew. & Wats. l. ce. 47. 
L. Menziesii, var. B. Hook. Fl. Bor.-Am. 1. 68. 
L. Menziesii. Gray, Proc. Am. Acad. 8. 377. 
Under L. montanum insert: — Parry, 1. c. 268. Brew. & Wats. 1. c. 47. 
Insert Lepidium Greenlandicum. Hornem.; Lange, Pl. Groenl. 130. 
L. alpinum. Muell. Fl. Dan. 4. 5, t. 569. 2 
After L. nitidum insert: — Z. Menziesii. Torr. & Gray, Fl. 1. 115, in part. 
After Dileptium diffusum insert : 
? Discovium Ohioense. Raf. Journ. Phys. 1819, 96; Autikon Bot. 17. DC. 
Syst. 2. 700; Prodr. 1. 236. Don, Mill. 1. 181. Torr. & Gray, Fl. 1. 120. 
Dietr. 3. 643. p 
Semetum ramosum. Raf. Autikon Bot. 17. 
2 L. Menziesii. Torrey, Bot. Wilkes, 255. 
Under L. Wrightii insert: — Parry, l.c¢. Brew. & Wats. Bot. Calif. 1. 46. 
Under Lyrocarpa Coulteri insert: — Brew. & Wats. Bot. Calif. 1. 44. 
Insert L. Palmeri. Watson, Proc. Am. Acad. 11. 123. Brew. & Wats. 1. c. 
Under Nasturtium Armoracia insert: — Brew. & Wats. Bot. Calif. 1. 45. 
Under N. curvisiliqua insert: — Brew. & Wats. 1. c. 42. 
Under N. orriciNALe insert:— Torrey, Compend. 251. Eat. & Wr. 826. 
Brew. & Wats. l. ec. 45. 
Erysimum Nasturtium. Eat. Man. 7 ed. 
Under N. palustre & var. hispidum insert :— Brew. & Wats. I. c. 42. 
Under N. sinuatum insert: — Brew. & Wats. 1. ¢. 43. 
Insert N. trachycarpum. Gray in Brandegee, Fl. S. W. Col. 255; Proc. 
Am. Acad. 12. 54. 
Under Parrya nudicaulis insert: — Regel, Descr. Pl. Nov. fasc. 5. 18, with 
syn., including both P. arctica & macrocarpa. 
Under Physaria didymocarpa insert :— Brew. & Wats. 1. c. 47. 
Under Vesicaria didymocarpa insert: — Benth. & Hook. Gen. PI. 1. 73. 
Under P. Newberryi insert: — Parry, Am. Naturalist, 9. 268. 
Under Platyspermum scapigerum insert : — Brew. & Wats. Bot. Calif. 1. 27. 
Under Raphanus Rarnwanistrum & sativus insert:—Brew. & Wats. 1. c. 
49, 
Under Senebiera pipyMa insert: — Brew. & Wats. 1. c. 48. 
Under Sisymbrium canescens insert : —Griseb. Pl. Lorentz. 25. Watson, 
Proc. Am. Acad. 11. 113. Brew. & Wats. Bot. Calif. 1. 40. 
After S. brachycarpon insert : 
S. canescens, var. appendiculatum. Griseb. Pl. Lorentz. 25. 
Under S. reflexum insert:— Watson, Proc. Am. Acad. 11.113. Brew. & 
Wats. |. c. 41. 
After S. deflerum insert : 
Erysimum retrofractum. Torrey, Bot. Wilkes, 230. Gray, same. 
