ADDITIONS AND CORRECTIONS. 



Page 43. 17. NASTURTIUM. 



3 a . N. obtusum, Nutt. Annual or biennial, glabrous or nearly so : stems much 

 branched, decumbent or procumbent, a span long or less : leaves pinnately parted or 

 divided ; the segments mostly oblong, sinuately toothed : flowers minute : pods 

 ovate- to linear-oblong, 2 or 3 lines long, very obtuse or acutish, beaked by the 

 short style : pedicels about a line long. Torr. & Gray, Fl. i. 74. 



On the headwaters of Kern River (Rothrock) ; Northern Nevada ( Watson) ; frequent eastward 

 from Colorado and New Mexico to the Mississippi. 



Page 300. 3. BRICKELLIA. 



2. B. grandiflora, Nutt., var. minor, Gray, Proc. Acad. Philad. March, 1863, 

 67. A form decidedly smaller in all its parts ; collected on a peak near Lake 

 Tahoe, Lemmon. 



Page 313. 16. APLOPAPPUS. 



8*. A. Palmeri. Gray. Shrub 4 feet high, paniculately much branched, some- 

 what resinous ; branches often virgate, very leafy : leaves filiform, about an inch 

 long, with shorter ones fascicled in the axils, obscurely punctate : heads paniculate, 

 4 lines long : involucre turbinate ; the scales oblong-linear, very obtuse, chartaceous, 

 minutely granulose-glandular, the narrow scarious edges especially at the tip ciliate- 

 fringed : rays 3 or 4, not longer than the 11 to 15 disk-flowers : akenes short-linear, 

 villous-pubescent. Proc. Am. Acad. xi. 74. 



Tecate Mountains, in Lower California, 20 miles or more below the State boundary (Palmer) ; 

 San Bernardino Co., Parry. One of the Ericameria section, related to A. pinifolius, A. ericoides, 

 and the New Mexican A. laricifolius. 



14. A. gracilis, Gray. Rigid-herbaceous (the root in ours seemingly perennial), 

 pubescent : stems a span to a foot high, loosely and simply branching, slender : 

 leaves linear or the lowest somewhat spatulate, pinnately 5 - 7-cleft or incised, the 

 lobes short and tipped with a rigid bristle ; upper leaves gradually reduced to linear 

 and entire small and appressed bracts (3 to 2 lines long), which pass into the 

 appressed closely imbricated scales of the obovate involucre : heads small, terminat- 

 ing the virgate branches : rays 12 to 18, short: akenes silky-hairy: pappus dirty 

 white, of rather scanty arid extremely unequal bristles ; the innermost rigid and wider 

 downward, about the length of the disk-corolla, the others successively shorter and 

 finer : style-appendages linear, as long as the stigmatic portion. PI. Fendl. 76. 



Southeastern part of the State ; San Diego and San Bernardino counties (Cooper, Cleveland, 

 Palmer) ; thence east to New Mexico. Head a quarter of an inch high : scales of the involucre 

 linear, rigid, mostly bristle-tipped, in the plant of Arizona and California minutely granulate- 

 glandular. Belongs to the Blephnrodon section, along with A. arcnarius and A. spinulosus, 

 referred to on p. 314. 



Page 31 4. 17. BIGELOVIA. 



1*. B. spathulata, Gray. A low and corymbosely much-branched shrub, gla- 

 brous, hardly at all glutinous : branchlets leafy to the summit : leaves (half an inch 



