3. G. divaricata: suffruticose; stems much branched above, divaricate-
corymbose ; leaves very narrowly linear; the oblong-turbinate heads nearly
all solitary and pedunculate ; flowers of the ray and disk each about 7; pappus
of 9 or 10 narrowly linear acutish chaffy scales, those of the disk longer
than the achenium.—Brachyris divaricata, N u tt.! in trans. Amer. phil. soc.
(n. ser.) 7. p. 313.
On the Platte near the Rocky Mountains, with the preceding, Nuttall!—
Plant with the habit of the following, and nearly the achenia and pappus of
G. Californica.
§ 2. Pappus of the dish short and nearly coroniform, of the ray obsolete or
none.—H emiachtris, DC.
4. G. Texana: stem shrubby at the base, very much branched, fastigiate-
paniculate; the branches slender, angled ; leaves narrowly linear, 1-nerved;
those of the branchlets very short; heads (small) solitary, turbinate; flowers
of the ray 5-7, of the disk 7—10; pappus of the ray none or obsolete ; of the
disk consisting of several very small ovate chaffy scales.—Hemiachyris
Texana, DC. ! prodr. 5. p. 314. Brachyris n. sp. N u tt.; Torr. ! in ann.
lye. New York. B. microcephala, Hook.! ic. pi. t. 147, not of DC.
Prairies of Arkansas, Nuttall, Dr. James! Dr. Leavenworth! Texas,
Drummond! Berlandier! Dr. Leavenworth! Dr. Riddell! Aug.-Sept.—
Stems 1—3 feet high; the branchlets, heads, &c., somewhat varnished.
Scales of the involucre lanceolate-oblong, with scarious margins. Corolla of
the ray oblong. Style as in the preceding species. Achenia minutely
pubescent.
Subdiv. 3. S o l id a g in e je , DC.—Rays in a single series, oroften none. Pappus
similar in the disk and ray, simple, of capillary or setiform, rarely squamellate or
awn-like bristles.
38. BRACHYCHrETA.
Heads 8-10-flowered ; the ray-flowers ligulate, pistillate, fertile ; those of
the disk tubular, perfect and fertile. Involucre cylindrical; the scales
(about 12) imbricated, appressed; the outermost short, the others oblong-
linear, with somewhat greenish but scarcely herbaceous tips. Receptacle
narrow, naked. Ray-flowers 4-5 ; the tube of the corolla as long as the
oval ligule: corolla of the disk dilated above, 5-cleft; the lobes lanceolate.
Branches of the style (in the disk-flowers) acute, produced above the short i
and flat stigmatie portion, into a deltoid-lanceolate minutely hispid acumina-
tion. Achenia somewhat obconic. Pappus of the disk and ray similar,
consisting of about 20 scabrous squamellate bristles, in a ,single series, shorter
than the achenia.—A perennial herb, with the habit of Solidago ; the stem
simple or sparingly paniculate at the summit. Leaves alternate, membranaceous,
very veiny, ovate, acute, all but the upper somewhat cordate,
on margined petioles, sharply serrate ; the radical roundish. Heads small,
racemose-glomerate, nearly sessile; the clusters, or near the summit the
solitary heads, disposed in an elongated and interrupted somewhat leafless
unilateral raceme or spike. Flowers golden yellow.
B. cordata.—Solidago sphacelata, Raf. ! ann. nat. (1820.) p. 14. no.
106, S. cordata, Short! suppl. cat. Kentucky plants. Brachyris ovati-
fblia, D C .! prodr. 5. p. 313.
Wooded hill-sides of Kentucky, Rafinesque! Dr. Short! 6fc. to the
mountains of North Carolina, as far east as Wilkes County, Mr. Curtis.
and of Georgia, Mr. Buckley! Aug.-Oct.—Stem 2-4 feet high, pubescent,
as well as the lower surface of the leaves, usually with a few lax and spreading
or recurved branches at the summit. Radical leaves deeply cordate,
3—5 inches broad, more or less acuminate, finely veined and reticulated,
somewhat triplinerved ; the cauline gradually reduced in size and less cordate
; the upper merely obtuse at the base; the uppermost nearly sessile
and entire. Heads about 3 lines long. Rays a little longer than the disk.
Achenia almost glabrous.—This plant is more closely allied to Solidago than
to Gutierrezia (Brachyris); only differing from the former, indeed, in its cordate
leaves and very short pappus. The latter does not consist of 5-6 pale®,
as stated by De Candolle; but of about 20 linear squamellae, not longer than
the ovary, which, if prolonged to the length of the corolla, would form
bristles scarcely stronger than those’of Solidago.
39. SOLIDAGO. L in n .; Gcertn.fr. 1.170; Schkuhr, handh. t. 246 ; DC.
Solidago, Euthamia, & Chrysoma, Nutt.
Heads few-many-flowered; the ray-flowers few (1—16), or sometimes
wanting ; those of the disk tubular, perfect. Scales of the oblong involucre
imbricated, appressed, destitute (except in Chrysastrum) of foliaceous or
herbaceous tips. Receptacle narrow, mostly alveolate. Appendages of the
style lanceolate. Achenia many-ribbed, somewhat terete. Pappus simple,
of numerous scabrous capillary (mostly equal) bristles.—Perennial herbs,
rarely suffruticose (the greater portion North American), mostly with strict
or virgate stems, and sessile alternate cauline leaves; the radical never cordate.
Heads in terminal or axillary racemes or clusters, sometimes corymbose
; the pedicels often unilateral. Flowers yellow (the rays white in S.
bicolor), never turning purplish.
§ 1. Herbaceous: scales of the (much imbricated) involucre with squarrose
herbaceous tips : rays 12-16, or entirely wanting: the inner bristles of the
unequal pappus slightly thickened at the apex! : heads in glomerate clusters
or racemes disposed in a compound spike or panicle: leaves ampler
veiny; the lower narrowed into petioles.—Chrysastrum.
* Rays nonet corolla o f the disk deeply 5-cleft: inner bristles of the pappus manifestly
daveUate-thickened at the apex.
1. S. discoidea: stem somewhat villous, branching above ; leaves mostly
pubescent; the lower ovate, coarsely toothed or serrate, abruptly narrowed
into a margined petiole ; the upper oblong or ovate-lanceolate, acute at each
end, somewhat petioled; the uppermost entire; racemes paniculate, often
glomerate ; scales of the canescently pubescent involucre linear-lanceolate,
acute, squarrose ; disk-flowers 10-15.—Aster ? discoideus, E ll.! sk. 2.
p. 358 ,• DC. prodr. 5. p. 247. . w " ,
Georgia, abundant in the high rich lands between the Alabama ancl
Chatahouchie Rivers, Elliott! Middle Florida, Dr. Chapman! Louisiana,