ADDITIONS AND CORRECTIONS. 



Page 43. 17. NASTURTIUM. 



3". N. obtusum, Xutt. Annual or biennial, glabrous or nearly so : stems much 

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

 divided ; tbe 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 (Solkrock) ; Northern Nevada ( IVatson) ; frequent eastward 

 from Colorado and New Mexico to the Mississippi. 



Page 300. 3. BRICKELLIA. 



2. B. grandiflora, Xutt., var. minor, Gray, Proc. Acad. Philad. March, 18G3, 

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

 Tahoe, Lemmoa. 



Pago 313. 16. APLOPAPPUS. 



8*. A. Palmsri, 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 nr more below the State boundary (Palmer) ; 

 S.ui Bernardino I !o., Parry. One of the Ericami ria section^ related to A. pinifolius, A. erii 

 and tie- New Mexican .1. laridfolius. 



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, piunately 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 and 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 lung as the stigmatie portion. — PI. Femll. 76. 



Southeastern part of the Stale; San Diego and San Bernardino counties (Coop . 

 Palmer); thence easi 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 MepJiarodon section, along with ./. n ind ./. spinuloses, 

 referred to on p. 314. 



Page 314. 17. BIGELOVIA. 



I". B. spathulata, Gray, A low and corymbosely much-branched shrub, gla- 

 brous, hardlj a! all glutinous : branchlets leafj to the summit: leaves (hall an inch 



