944 THE JOURNAL OF BOTANY 
(1860) with regard to this plant is corrected by 8. Watson in his 
Index, and the conclusions of the latter are accepted by Chapman 
in his latest (third) edition (1897). Chapman’s mistake seems to 
have originated with Rugel’s plants, collected in 1848 and distri- 
buted by ee sarki. a this set, No. 278 bears on its printed 
ticket the name E. Baldwini, but the numerous specimens so 
labelled in the National Herbarium all belong to F. prostratum Nutt. 
The true Baldwini aoe in Rugel’s collection—Nos. rie 280, 
281—under the name E. /filiforme Shuttl., which Asa Gray (PI. 
Wright. p. 78) rightly "reduced to Baldwini. Shuttleworth’s 279 is 
comparison ve red specimens of E. prostratum Nutt. an 
F.. filiforme ple from ane types in the National Herbarium. W 
uae given figur nvolucral bracts, bractlets, and heads, 
of the 
owing the distinctive sbasassats of the two species 
KE. wreerimoiium Walt. Fl. Carol. 112 (1788). cle hangs! 
& Rose (Rev. N. Amer. Umbell. p. 102) say that it ‘‘ seems im- 
possible to determine’’ this plant. cee oe. in Waller’ 8 
Herbarium, however, oe but fragm , is clearly identical 
with E. virgatum Lam. as as indeed pcre indicated by Sprengel 
(Syst. i. 870) i in 1825. Walter’ s name must therefore be ey ge 
point out, there is no such te nt :-—* = Pr was first used by 
Sprengel in Roem. & Schultes Syst. [vi. 887], and referred by him 
to Walter, but he copied tabriggeds the description of Walter’s 
E. integrifolium.” An earlier citation of the will be found in 
Michaux, Fl. Bor To i. 163 (1808), white it is doubtfully 
referred to his E. ovalifolium (=E. virgatum Lam.). The plant 
is generally referred with doubt to E. prostratum Nutt., as in 
Britton & Brown’s Illustrated Flora, and in the Index Kewensi 
where E. americanum is erroneously cited as ** Walt. Fl. Carol. 102.’ " 
Specimens distributed under the name americanum by Elihu Hall 
(no. 242)= F. prostratum. 
E. rertotarum Hook. Fl. Bor. Amer. i. p. 259 (1833). —— 
specimens, five in number, from ‘overflowed plains of the Mul 
nomah, 1825,”’ are in the National Herbarium, and are of | ee 
Of thie Ty as Hooker (Fl. Bor. Amer. i. 259) says of the plant :— 
; 
leaves) ; the involucral bra are sendin eitiate: spinose, rigid, 
and spinous aes the antiae are mene at the globose head. 
Asa Gray (Proc. Am. Acad. viii. 885 (1872)) makes a variety, 
juncifolium, on a plant gathered in Oregon a “hina Hall, no. 200. 
We have compared the two, and cannot enero Hall's plant from 
ee: 8 type. Messrs. Coulter and Rose (in Revis. Umbell. 98) 
te Hall’s plant as E. articulatum Hock, Lond. Journ. Bot. vi. 
339, 1847. The accompanying figures (Plate 411, A, B), taken in 
