Macbride — Revision of Mertensia 5 
Hairs in corolla-tube confined to a ring; inflores- 
cence congest 
Leaves —_ oblanceolate or elliptic-oblong; 
roots not fusiform. 
Caleb lanceolate, 2-3.5 mm. long, half 
ts long as the corolla-tube; plants 1.5-3 
a <4 94 ieee apiey 255 ee ey M. coriacea. 
cay linear, 5 mm. long, —_ as long 
the corolla-tube; plants 1-1.5 dm a. 
. M. caelestina. 
pei = ovate or oval; plant from a faditotee: 
ORs tie 6k. okey. cae 20. M. MacDougalii. 
d. Leaves owns n the upper surface 
Calyx-lobes "merely ciliate on the margins; roots 
nig cae state genet Oe ee 18. M. ovata. 
not fusiform 
oss ¢ vain more or less casas — 
m a fusiform tap-roots:. : . 6256 8068s 
b. Leaves ecbeinaa t on both surfaces. 
Bhi oblong-lanceolate to ovate-lanceolate. 
cence rican SNPTORNOR - 6 os eal oT 
& 
Pu 
Leaves inaana Rs is Pe ss 19b. 
a. High-plain and foothill species, not cespitosely tufted nor 
ve numerous gy leaves, though these often pre- 
calyx-tube u y about eq 
the lobes, Cis h the ties often only 1-2 mm. long in anthe- 
sis, coriaceous : fruit; midrib 
of cauline leaves strongly csahingp 
b. Halindcben ovate, shorter than calatuby ede 
appearing inflated in fruit; Bion pu t, at least 
above 
Leaves pubescent IVE GREY Cans § Keisha chs en foe 
aves pubescent on both surfaces............... 
b. wir hicigosig ovate-lanceolate to lin catsinnnenlate, as — 
as, or longer than the tube, * if shorter, the leaves 
glabrous; calyx not infla Pheleee 
8 
Leaves pubescent wig fo ae upper surface — 
Subsection OBLONGIFOLIAE 
a. Speed J 1 LL a , MPR ree ; plants large, 2- 
dm. high. 
Coulle 10-12 mm. long; crests in throat glabrous; tube 
. M. fusiformis. 
ce 
ogo hy 
var. lineariloba. 
var. myosotifolia. 
WEE D TONNE CONS 65 oo nn ae bus Se kae he ves e 24. M. Cusickii. 
Corolla about 15 mm. long; crests long-villous; tube not 
+e ewe bee 0 ee 6% 8 Oe 6 0 e He 2 Oe 66 een ee 8 oe 
25. M. eplicata. 
. M. longiflora. 
