EY ee ee, ey ee Le Ee a we ee Fear Pee eee 
1900] ROCKY MOUNTAIN HERBARIUM zol 
same as to the larger specimen (on the sheet before me). Both were dis- 
tributed as A. amplexicaudis Nutt., to which they bear but little resemblance. 
Mrs. Kennedy's specimens are included by Dr. Rydberg in his 4. amplexifolia 
(Nutt.) of his Flora of Montana. 
Arnica ocreata.— From slender horizontal rootstocks: stems 
slender, 3-42" high, erect, very leafy, nearly glabrous, more or 
less finely granular-glandular, occasionally some straggling 
woolly hairs: leaves 6-10 pairs, ascending or erect, from broadly 
‘o narrowly lanceolate, entire, sub-acute, gradually smaller 
"pward and becoming bract-like, all but the uppermost much 
*xceeding the short internodes (even overlapping two or three 
of the internodes), the lowest petioled, the uppermost sessile: 
petioles slender, dilated at the base and connate, the pair form- 
"8 *1 Octea or sheath which in the lowest leaves is 2-3™ long, 
ne sheath and petioles gradually shorter upward to about the 
middle of the stem where both become wholly absent: heads 
as 2 several; if three, corymbose, the two from the axils of 
sai bracts ; if more than three, mostly somewhat racemose 
Se of alternate bracts ; terminal head largest, a 
hier 1g ts the oblong, obtusish bracts, about: 15 
pedicels nee se 1™ long; lateral heads somewhat reduce 
shins ate : rather slender, very lightly woolly-pubescent : 
Tow, taperin y glabrous, lightly striate, somewhat flattened, nar- 
ae 8 to the base, nearly equaling the soft pappus. 
hot "ag at 3 as specimens in the collections go, A. foliosa. It is 
tions of that om ois See: which is probably a rarer plant, though port 
description and as ma : Sais That, as may we seen by ee ete 
ie ay ! € e gathered from Hooker's Flora and from ae 
Chamissonis) is a = : (w ere 1t was compared with A, montane . : 
y different plant, and nearly allied to A. Chamtssonis. 
What equally leafy “ote Strict habit of that, is tomentose pubescent, meee 
, ughout, the leaves callous-denticulate, evidently nerve 
<reata m = heads congested-corymbose and the akenes hirsute. A. 
recognized at once by the characteristic disposition of as 
"PWard and th ot olate leaves. Owing to their spe Ae ei 
Pearing early) the : ratively long petioles of the lower (some oO : pte 
the Middle, while the ict leaves have the appearance of being crowde : 
ase and summit of the stem are semi-nude. 
