CATALOGUE. 239 
moist slopes. In tlie mountains from Idaho to Colorado and Utali. Fre- 
quent in the Washoe, Trinity and East and West Humboldt Mountains, 
Nevada; 6-9,000 feet altitude ; April-July. (840.) 
Var. Somewhat taller, 10-12' high, with the flowers more loosely pani- 
cled ; but for the obtuse leaves, approaching the smaller forms of M. Sihirica. 
East Humboldt Mountains, Nevada ; 7,000 feet ah iliuh- July. (841.) 
Mertensia Sibirica, Don. Gray, I. c, 340. rsually hdl, l-r)° liigh, 
glaucescent, glabrous or subpubescent ; cauhne leaves ovale or ovatc-laiiccit- 
late or oflen oblong-lanceolate, acute or acuminate ; calyx H-parfed, I he lobes 
oblong or oblong-hncar, o])tusc, ciliate, 2-4-tiines slioiier than llieliibeof 
the corolla, which is s})ariiigly pilose or almosl glabrous williiii ; limb of llie 
corolla 5-cleft, more than halfhuiger iluiu llie lube; lllaineuls dilaled, shorter 
than the anthers. — Mostly confined to the Itaidxs of niounlain-st r<'ams, and 
quite variable ; the taller specianens ]iav(.' often the leaves (/or nioi-e in 
length and 2-3' broad, more or less petioled ; in the lower ones lli( \ aiT 
more usually oblong-lanceolate and mostly sessile; ])aiiieles loose; jiubeseenee 
as in the last; corolla 4-G" in length. Kocky ^rouulaius of Colorado and 
Wyoming, and probably northward. In the East and West IIund)oldt Moun- 
tains, Nevada, and in the Wahsatch and Uintas; G-9,000 feet altitude; 
June-August. (842.) 
Mertensia paniculata, Don. Identical in foliage and liabit with the' 
last, but distinguished by its general roughness (varying in degree,) and by 
its lanceolate acute calyx-segments. — The e\li( ine forms of the two sjifcics 
are sufficiently distinct, but numerous intermediate states can be r('fci red as 
well to one as the other. All the specimens of the eollcclion w ith cloi)!.';!!*'!! 
and acute calyx-lobes are placed here, whatever tin; degree oi" jnibcsecnee. 
Shore of Lake Superior, Rocky Mountains of Colorado and Wyominir, and 
northward; Behring Strait. Battle and 4'oyahc Moiiiii;iin>. Xr\;i(l;i, and 
in the Wahsatch and Uintas; 5-7,000 fivl altihide : Aiii:ii.vi. (slM.j 
Var. NIVALIS. A reduced alpine foi ni, :5-<l' hiiih ; hirsulely puboecnt 
throughout, especially so upon the oblonLi-Lniecolai*' ealyx-hd.o : l< ;i\c> 
oblong, acute, the lowest petioled, the uppermo>t ovale an.l (•l;l^pinL^ I'inla 
Mountains ; 10-12,000 feet altitude : An-nvi. ( s ) }.) 
Mertexsia BREVISTYLA. Low (4-lU',) pulH'sceiil with short appres^ed 
rigid hairs, the lower surface of the leaves cxeeple.l : leaves oM.mii: (.r oblong- 
lanceolate or oblanceolate, very (d.lnse: flowers in a l<.o>e panicle: calyx 
