the Blue Mountains, Nuttall!—Stem 6-8 inches long, from a low woody
base, leafy to the summit. Leaves an inch or more long, about 2 lines wide.
Heads large, with about 30 disk-flowers and mostly 8 linear-oblong rays,
“ having often the same pubescent stigmas with the discal florets, and not
unfrequently the rudiments of stamens.” Nutt. Pappus ferruginous.—The
heads are not unlike those of Dieteria (Pappochroma) coronopifolia.
§ 2. Rays wanting: achenia very glabrous. (E ugymna, Nutt.)
2. M. discoidea (Nutt.! 1. c .) : young branches tomentose; leaves sub-
spatulate-oblong, obtuse; involucre subtended by 2-3 foliaceous linear-oblong
bracts similar to the upper leaves ; the inner scales membranaceous, scari-
ous, not appendiculate ; young achenia linear-oblong.
Banks of Lewis River and other tributaries of the Oregon, Nuttall! Resembles
the preceding. Leaves about an inch long, 2—3 lines wide. Heads
25-flowered.
44. ERICAMERIA. Nutt, in trans. Amer. phil. soc. (n. ser.) 7. p. 318.
Heads few-flowered; the ray-flowers 3—6, ligulate, pistillate ; those of the
disk 7-9, tubular, perfect. Scales of the turbinate or cylindrical involucre ,
few, imbricated, carinate-concave, chartaceous with scarious margins; the
outermost short and subulate, fleshy, passing into the leaves. Receptacle
small, alveolate. Corolla with a slender tube ; that of the disk infundibuli-
form at the summit, 5-toothed. Branches of the style linear-subulate, the
hirsute acute appendages much longer than the stigmatic portion. Achenia
linear, slender, terete, mostly glabrous. Pappus of copious capillary bristles,
entirely similar but unequal.—Dwarf and often resinous shrubby plants
(natives of Oregon & California), exceedingly branched and leafy, with the
aspect of Heaths. Leaves acerose or linear-subulate, crowded and fascicled,
persistent. Heads small, corymbose at the extremity of the branchlets.
Flowers yellow.
1. E . microphylla (Nutt.! 1. c .): somewhat pubescent, scarcely glutinous;
leaves terete, obtuse, very short, much fascicled; rays 3-4 ; inner scales of
the involucre oblong, obtuse; achenia glabrous.—Diplopappus ericoides,
Less., in Linneea! 6. p. 117. Aplopappus ericoides, Hook. Sf Am . hot.
Beechey, p. 146; DC.! prodr. 5. p. 346.
California, on rocks, Chamisso! Douglas! Nuttall! Sfc.— Shrub 6—12
inches high, at first cinereous-pubescent: the leaves 3-5 lines long, not
unlike those of Adenostorna.
2. E . nana (Nutt.! 1. c .): glabrous, somewhat glutinous; leaves linear-
aeerose, acute, channelled ; rays about 4 ; scales of the involucre lanceolate,
acute; achenia minutely hairy, somewhat compressed.
On shelving rocks in the Blue Mountains of Oregon, Nuttall!—Shrub
scarcely a span high, densely branched, fastigiate, brittle: the rigid leaves
6-12 lines long. Pappus not very copious, in 2 series, somewhat deciduous.
3. E . resinosa (Nutt.! 1. c .) : glabrous, glutinous; branches slender, corymbose
at the summit; leaves subulate-linear, acute, tapering to the base ;
rays about 6; the disk-flowers about 12; the limb of the corolla deeply'
5-cleft; scales of the involucre lanceolate, acute; achenia hirsute when
young.
With the preceding; the flowers larger and not perfectly yellow (ochro-
leucous); the branches more slender and open ; the leaves somewhat longer
and a little broader; the rays often, but not always bilabiate, with 2 strapshaped
narrow segments opposed to the 2-toothed ligule. Nuttall.—Pappus
in a single series, the capillary bristles nearly all equal.
45. STENOTUS. Nutt, in trans. Amer. phil. soci (n. ser.) 7. p. 334.
Heads many-flowered; the ray-flowers 8-12, ligulate, rather distant, pistillate
; those of the disk tubular, perfect. Scales of the hemispherical involucre
few, oblong-ovate or orbicular, 1-nerved, membranaceous (rarely coriaceous)
with scarious margins, closely appressed and regularly imbricated in
2—3 series. Receptacle flat, alveolate-toothed. Rays oval or oblong. Corolla
of the disk dilated towards the summit, deeply 5-toothed. Appendages
of the style broad and flat, with the pubescent appendages various in form.
Achenia oblong-turbinate, .densely silky-villous. Pappus of numerous soft
unequal densely scabrous capillary bristles, commonly bright white.—Dwarf
suffrutescent plants of alpine aspect (natives of the Rocky Mountains, &c.),
densely ceespitose, of a cinereous hue,, or sometimes covered with' a resinous
exudation, the fastigiate stems or scapes numerous from the ligneous branching
caudex, terminated by showy heads (large for the size of the plant).
Leaves linear or lanceolate, 1-3-nerved, rigid, persistent, entire, alternate or
crowded. Flowers bright yellow.
A group of plants well marked in habit, and doubtless generically distinct from
the true Aplopappus.
§ 1 . F lo w e r in g stems or scapes somewhat simple and naked, bearing single
heads : leaves cinereous: rays 10-12 •• pappus and silky hairs of the achenia
bright white.
1. S. acaulis (Nutt.! 1’. c.) : leaves clustered at the summit of the thick
branched caudex, spatnlate-ianceolate, mucronate-acute, somewhat 3-nerved,
minutely hispid-scabrous; scapes nearly leafless ; scales of the nearly glabrous
involucre short, oblong-ovate, acute, chartaceous, with scarious margins,
somewhat in 2 series; rays short, often 2-cleft; appendages of the style
in the disk-flowers subulate-linear, longer and narrower than the stigmatic
portion.—Chrysopsis acaulis, Nutt.! in jour. acad. Philad. 7. p. 33, t. 3 ,/. 1.
Borders of Little Godin River in the Rocky Mountains, towards the sources
of the Oregon, Mr. Wyeth! June.—“A small, tufted alpine, only 3-4
inches high.” Leaves scarcely an inch long ; those of the simple scape 1-2
and much smaller, or none.
2. <S. pygmeeus: very dwarf; leaves spatulate, obtuse, somewhat 3-nerved,
fimbriate-ciliate; the radical as long as the simple leafy scape ; head brac-
teate; scales of the involucre oblong, obtuse, ciliate, rather rigid; rays
oblong-linear.
Rocky Mountains, probably in about Tat. 41°, Dr. James!—Scarcely 2
inches high, slightly cinereous. Ovaries hairy. Style, &c. as in the
preceding.
3. S. armerioides (Nutt.! 1. c .) : glabrous; leaves crowded at the summit
of the thick woody caudex, elongated spatulate-linear, obscurely 3-nerved;