leaves oblong-linear, the floral ones broader, obtuse; fertile flowers 20 or
more; the obovoid inflated fructiferous chaff forming globose very woolly
heads, lateral and terminal.—Micropus globiferus, Bertero, in DC. prodr. 5.
p. 460 ?
St. Barbara, California, Nuttall! April.—“ Plant not an inch high,
spreading out 5 or 6 inches the woolly bracteate heads numerous, nearly
one-fourth of an inch in diameter; the woolliness of the leaves somewhat
deciduous: the inflated fruit-bearing chaff between 1 and 2 lines long.-—Also
a native of Chili, if it is really the Micropus globiferus of Bertero, which is
uncertain, although that species doubtless belongs to this genus.
2. P. brevissimus (Nutt.! 1. c .): stem minute, simple, producing mostly
a single very woolly head ; fertile flowers 8-10; the fructiferous chaff obovoid-
oblong; leaves oblong-lanceolate, acute.
“ Plains of the Oregon River, in inundated tracts.—Extremely dwarf
(perhaps not always so); about 4 lines high; the solitary capitulum, though
rather large, sessile on about the third set of leaves, and so downy as to look
like a pellet of cotton.” Nuttall.—Very nearly allied to the preceding. Mr.
Nuttall suspects it may possibly prove to be the Micropus minimus of De
Candolle.
3. P. Oreganus (Nutt.! 1. c .) : canescently tomentose throughout, diffusely
branched and procumbent; leaves linear; fertile flowers 20 or more ;
fructiferous scales obovoid, tomentose.
“ Inundated places, near the Oregon and the outlet of the Wahlamet.—
Nearly allied to P. globiferus ; but with much narrower leaves ; with none
of the long arachnoid hairs of that species; the scales of the receptacle also
smaller.” Nuttall.
4. P. tenellus (Nutt.! 1. c .): tomentose-canescent; the base of the ascending
clustered stems and the lower leaves becoming glabrous; lower leaves
spatulate-linear; the upper and floral ones oblong-spatulate ; heads small,
mostly terminal; fertile flowers 20 or more; fructiferous scales obovoid-ob-
long, gibbous, tomentose.
St. Barbara, California, Nuttall! April.—Plant 1-2 inches high, with
the stems slender. Heads about 2 lines in diameter. Achenia acute at
each end.
65. STYLOCLINE. Nutt, in Irans. Amer. phil. soc. (n. ser.) 7. p . 338.
Heads subglobose, many-flowered ; the fertile flowers pistillate, in several
series included in a carinate fold of the chaff of the receptacle, with a very
slender and filiform truncate corolla; the 3-4 central staminate, with a tubular
minutely 5-toothed corolla, destitute of ovaries, naked. Receptacle slender
and elongated, cylindrical; the chaff imbricated, broadly ovate, concave,
scarious, with a green herbaceous carinate-saccate keel in which the fertile
flowers are enclosed, woolly towards the base; the scales of the involucre
about 5, similar, but destitute of the saccate keel. Achenia very smooth,
somewhat laterally compressed, acute at the base, slightly lunate. Pappus
of the fertile flowers none; of the sterile composed of 3-5 barbellate-scabrous
bristles as long as the corolla.—An annual tomentose woolly low herb, diffusely
branched and decumbent, with small linear entire sessile leaves.
Heads (about 3 lines in diameter, yellowish-white) in sessile clusters of 3-5
together at the extremity of the branches and in the upper axils.
S. gnaphaloides (Nutt.! 1. c.)
Near Monterey, California, Nuttall!—Plant about 6 inches high.—Chaff,
including the minute achenia, at length deciduous from the slender spirally
punctate receptacle.—The fertile flowers have the same corolla as the preceding
genera; and what Mr. Nuttall describes as a few long chafly hairs
produced at the apex of the receptacle, is the pappus of the sterile flowers.
Subtribe 4. I nuleje, Cass.—Heads mostly radiate and heterogamous, never
dioecious. Receptacle not chaffy. Anthers caudate at the base.—Leaves
alternate. Heads not glomerate. Ray-flowers of the same color as the disk.
66. INULA. Linn.; Gtertn.fr. t. 170 ; DC. prodr. 5. p. 463.
Heads many-flowered; the ray-flowers in a single series, pistillate, but
sometimes infertile, ligulate, or rarely somewhat tubular; those of the disk
tubular, perfect. Involucre imbricate in several series. Receptacle flat or
somewhat convex, naked. Anthers bisetose at the base. Achenium terete
or 4-sided. Pappus a single series of capillary slightly scabrous bristles.—
Mostly perennial herbs (natives of Europe and Asia), with the cauline leaves
often clasping. Heads solitary or corymbose at the summit of the peduncles.
Flowers yellow.
§ Exterior scales of the involucre broadly ovate, foliaceous ; the inner obovatespatulate,
obtuse: achenia 4-sided, glabrous; rays ligulate, numerous, narrowly
linear.—C orvisartia, Merat, Cass.
1. I. Helenium (Linn.): leaves (large) velvety-tomentose beneath, denticulate;
the radical ones ovate, tapering into a petiole; the cauline partly
clasping; heads solitary at the summit of the stout somewhat corymbose
peduncles.—Linn.! spec. 2. p. 881 ; FI. Dan. t. 728 ; Lam. ill. t. 680 ;
Darlingt.fi. Cest. p. 476 ; DC.! l.a. Aster Helenium, Scopoli. Corvisartia
Helenium, “ Merat, fi. Par. ;” Cass, in diet. 1. c. 10. p. 572. Helenium
seu Exula Campana, &c., Clayt.
Road-sides and about houses, introduced from Europe, and naturalized in
many places.—The thick and branching perennial root is mucilaginous and
slightly bitter, and is employed as a popular remedy.—The old officinal
name is Enula Campana, whence Elecampane.
Subtribe 5. E clipteje, Less.—Heads radiate, heterogamous, never dioecious.
Receptacle chaffy. Anthers not caudate at the base. Pappus none,
or awn-like.—Leaves opposite. (Plants with nearly the habit and structure
of Heliantheae, except the style, which corresponds with Asteroideae.)
67. BORRICHIA. Adans. fam. 2. p. 130 ; DC. prodr. 5. p. 488.
Heads many-flowered; the ray-flowers ligulate, pistillate, in a single
series; those of the disk perfect and tubular. Involucre hemispherical, imbricated
; the exterior scales foliaceous. Receptacle flat, covered with lanceolate
rigid persistent chaffy scales, as long as, or sometimes shorter than
the flowers of the disk. Corolla of the ray short and broad; of the disk
scarcely dilated at the throat, 5-toothed. Anthers blackish, tipped with an