John Torrey.

A flora of North America: containing abridged descriptions of all the known indigenous and naturalized plants growing north of Mexico; arranged according to the natural system online

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Online LibraryJohn TorreyA flora of North America: containing abridged descriptions of all the known indigenous and naturalized plants growing north of Mexico; arranged according to the natural system → online text (page 160 of 171)
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nately divided ; the upper 3-cleft ; segments filiform ; uppermost leaves en-
tire ; heads racemose, secund, nodding, hemispherical ; scales of the involu-
cre ovate-elliptical, with scarious margins ; corolla glabrous. Bess. Abrot., if
in DC. prodr. 6. p. 105.

/?. vegetiar (Bess. 1. c.) : leaves simply ternately divided ; scales of the in-
volucre all nearly glabrous.— A. foliosa, Nutt. ! in trans. Amer. pkil. socle.
p. 397.

" St. Francisco, California.— Shrub 3 feet high, decumbent." Besser, I c
who, under var. £., remarks that the receptacle bears a dense wool, longer than
the involucre ; and that the acutely ribbed achenia are terminated bv a mem-
branaceous and somewhat lobed pappus ; the epigynous disk therefore large,
as in Tanacetum. Mr. Nuttall's plant (not in flower) is from Monterey.
The leaves have smaller ones fascicled in the axils ; which is said by Lea-
sing to be the case in A. Californica.

§ 6. Receptacle villous or hairy: heads heterogamous ; Ike flowers all fertile:
achenia not ribbed : pappus none.— Absinthium, (Tourn., Gantn.) Bess.

33. A. Absinthium (Linn.) : surTruticose, erect, silky -canescerrt ; leaves
2-3 pinnately parted; the lobes lanceolate, often incised, obtuse; beads
hemispherical, racemose-paniculate, nodding ; exterior scales of the involu-
cre linear or lanceolate, silky ; the inner broaQ, rounded, scarious. — EngL
hot. t. 1230 ; DarlingUft. Cesl. p. 491 ; DC. prodr. 6. p. 125 ; Oakes, eat.
pi. Vermont, in Thompson, gazetteer. Absinthium | vulgare, Lam.; Qertn.
Jr. t. 164.

Road-sides, naturalized in the Northern States ! Also in Newfoundland,
DC. — Bitter and odorous^— Wormwood.

34. A. fiigida (Willd.): surTruticose, sflky-canescent ; canline
pinnately divided ; the segments linear, 3-5-cleft ; heads small, raa
paniculate, globose, nodding, exterior scales of the involucre canescent; the
inner woolly, oblong ; corolla glabrous. DC. f I. c. — Willd. spec. 3. p. 1838 ;
Ledeb. ft. Alt. 4. p. 63, 4-tc. AU. U 462; Bess.! in Hook. ft. Bor.-Am* 1.
p. 321.

6. Omelinana (Bess. ! 1. c): branched fromthe base; lower pinna? of tht
leaves simple and remote from the others, resembling stipules ; segments
narrowly linear. — A. frigida, Pursh! ft. 2. p. 521. A. sericea, NuU. ! ge*-
%p. 143. A. virgata, Richards. ! appx. FrankU journ. cd*4L p. 30. Ab-
sinthium incanum, &c., Omel. ft. Stbtr. 2. p. 128, t. 62.
. Dry bills and rocka, Saskatchewan ! and Missouri ! to the Rocky Moon-


zed by G00gle

Artemisia. COMPOSITE. 425

tains, (Wind River Chain, at the altitude of 7000 feet, Lieut. Fremont.') and
the Snake Country, Mr. Tolntit, (Hook. Sf Am.) July-Aug. — Stems dif-
fuse, 8-12 inches high.

A. Ckinentis for rather A. lagocephala, FHxh.) a plant of Siberia and Kamtsch-
katca, is probably incorrectly given oy Purah as a native of the North West Coast
of America.

Div. 4. Hippiba, .Less.— Receptacle naked. Heads monoecious; the
pistillate flowers in the margin, the staminate in the centre. Style of the
sterile flowers simple, truncate. Pappus none.

157. SOLI VA. Ruiz Sf Pav. prodr. p. 113, t. 24 ; R. Br. in Linn. tram.
12. p. 101; DC. prodr. 6. p. 142.

Heads many -flowered ; the fertile flowers in several series, apetalous or
nearly so; the staminate few in the centre, with a 3-6-toothed corolla.
Scales of the involucre 5-10, in a single series. Receptacle flat, naked.
Achenia obcompreseed, with winged or callous margins, armed with the per-
sistent rigid style, destitute of pappus.— Small depressed herbs (chiefly South
American); with petioled pinnately divided leaves, and small sessile or
rarely pedunculate heads.

1. S. nasturtiifoUa (DC.) : very low and depressed; leaves on short pe-
tioles, pinnately parted; the lobes 3-4 on each side, obtuse, entire; heads
sessile ; achenia cuneiform, villous at the apex, the callous margin tubercu-
late-rugose throughout. DC. prodr. 6. p. 142. Gymnostyles nasturtlifolia,
Juss. in ann. mus. 4. p. 262, (. 61,/. 2. O. stolonifera? NuU.! gen. %p.
185 ;EU..'8k. 2. p. 473.

Damp sandy soils, in South Carolina, near the coast : perhaps introduced.
This species is a native of Buenos Ay res, where it was collected by Coramer-
8on. — It ? Ell. (Feb.-May.) Angles of the achenium somewhat produced
into spreading teeth.

2. S. daucifolia (Nutt.) : hirsute-pubescent, diffuse ; leaves bipinnately di-
vided; the divisions crowded, mostly 3-parted ; the lobes linear, acute; heads
sessile; achenia obovate, minutely hairy throughout, slightly margined, even,
minutely 2-toothed at the summit; the teeth incurved.— Nutt. .' in trans.
Amer. phtt. $oc. (n. ter.) 7. p. 403.

Dry grassy downs within the limits, and in the immediate vicinity of
St. Barbara, California, NuttaUl — About 2 inches high. Annual, accord-
ing to Nuttall.

Subtribe 7. GstaphalieA, Less., DC— Heads homogamous or hetero-
gamous, discoid ; the flowers all tubular ; the pistillate mostly filiform. An-
then caudate at the base ! Style in the perfect flowers with the branches
not appendiculate ; in the staminate mostly undivided. Pappus composed
of capillary or setaceous bristles, or sometimes none. — Leaves mostly alter-

vol. ii.— -54


zed by G00gle

426 COMPOSITE Gnaphalium,


* Receptacle not chqfy.

158. Gniph alium. Heads heterogamous ; the central flowers perfect, the aargmel

filiform. Pappus all capillary.

159. Aktennaria. Heads dioecious. Pappus of the sterile flowers derate or

thickened at the apex.

• • Receptacle chaffy, except in the centre.

160. Filago. Heads heterogamous ; the exterior flowers pistillate, filiform, sub-

tended by the chaff of the receptacle (which is similar to the scales of
the involucre), destitute of pappus; the central famished with

158. GNAPH ALIUM. Linn. (excl. spec.); Dan, in trans. Wern. see.
5. p. 263 ; Endl. gen. p. 447.

Heads many-flowered, heterogamous ; the flowers all tubular ; the exte-
rior pistillate, very slender, mostly in several series ; the central perfect.
Scales of the involucre imbricated, appreesed, scarious or somewhat hyaline.
Receptacle flat, naked. Style 2-cleft. Achenia somewhat terete, or mors
or less obcompressed. Pappus a single series of setiform or capillary i
brous bristles.— Herbs, or rarely suflhiticose plants, mostly woolly or 1
tose ; with sessile or decurrent leaves, and glomerate, corymbose, or spicate
heads. Scales of the involucre variously colored.

§ 1. Pistillate flowers in several series, frequently more numerous than ike per-
feet : achenia somewhat terete. — Eueif aphalium, DC.

• Leaves decurrent: scales of the involucre not jeUow.

1. O. decurrens (Ives): stem stout, branched at the summit, clothed with
a viscid pubescence; leaves linear-lanceolate, partly clasping, decurrent,
mucronate-acute, granular-viscid and slightly scabrous above, the lower
surface like the branches densely whiush-tomentose ; heads subsessile,
in dense corymbose clusters, on short leafy and very woolly branches;
the scales of the yellowish-white scarious involucre oval, rather acute;
achenia minutely scabrous.— Ives I in Sill. jour. 1. p. 380, Ul ; Torr.!
eompend. p. 288 ; Beck ! boU p. 178 ; Hook. ft. Bor.-Am. 1. p. 328 ; DC. /
prodr. 6. p. 226.

Hills and fields, Canada and Northern States, from Massachusetts! and
Vermont ! to New Jersey !— Aug.-Sept.— U Stem about 2 feet high.

2. G. Californicum (DC) : stem herbaceous, erect, arachnoid-tomeotose,
somewhat glandular below ; leaves linear-lanceolate, acuminate, somewhat
decurrent, glanduLar-puberulent and viscid bothysides (the lower surface often
clothed with a deciduous wool) ; heads in dense clusters; scales of the silvery-
white scarious involucre oval or oblong, mostly obtuse.— DC. I L c p. 224 ,*
Nutt. ! in trans. Amer. phil. soc. (». ser.) 7. p. 403. G. decurrens, Less.
in Ltnruea, 6. p. 525; Hook. Sf Am. hot. Beechcy, p. 151, ifsuppL p. 369;
not of Ives.

p. ? scales of the involucre pale purple.— G. Sprengelii p. erubescent,
Nutt. I. c.


zed by G00gle

Gna*balium. COMPOSITE. 427

California, Chamisso, Douglas! Nuttall! &c. April-May.— ® NuU.
Perhaps too near the preceding.

4. G. Sprengelii (Hook. & Arn.) : herbaceous; leaves clothed with white
wool on both sides ; the lower spatulate, the upper linear ; those of the branches
somewhat decurrent ; corymbs axillary and terminal, glomerate, peduncu-
late, of few heads ; scales of the silvery and slightly brownish involucre ob-
long, scarcely acute, shining.— Hook, fy Arn. hot. Becchey* p. 150. G. Chi-
lense, Spreng. syst. 3. p. 480 ; Less, in Linnaa, 6. p. 525. G. decurrens 0.
Hook. Ifi. Bar. -Am. 1. p. 328. G. luteo-album $. occidental, NuU. ! in
trans. Amer. phil. see. C. c.

/?. smaller ; heads in a simple capitate cluster.— G. luteo-album, Hook. !
fi. Bor.-Am. I. c.

California ! and Oregon ! apparently common. (I) —Near G. Vira-vira of
Chili. We know not how to distinguish the smaller states of this species
from G. luteo-album, except that the heads are larger, and the achenia per-
fectly smooth under a lens, instead of minutely tuberculate. The involucre is
often slightly yellowish.

* * Leaves not dtcuirtrU: scales of tie involucre never yeUow : heads corymlosc-cUisUred.

5. O. polycephalum (Michx.) : erect; leaves linear-oblanceolate, tapering
at the base, with undulate margins, raucronate-acute, nearly glabrous or
pubescent-scabrous above, woolly-tomentose beneath, as well as the stem ;
Leads clustered at the extremity of the paniculate-corymbose branches, ovate-
conical before expansion, then obovate ; scales of the scarious ochroleucous
involucre ovate and oblong, rather obtuse ; perfect flowers few.— Michx. ! fi.
2. p. 127 ; 2. p. 584 ; Ell. sk. 2. p. 325 ; Hook. ! fi. Bor.-Am. 1. p.
328 ; Darlingt. ! fi. Cest. p. 494 ; DC. ! prodr. 6. p. 227. G. obtusifolium,
Linn. spec. ed. 2. p. 1198 (pi. Oronov. !) ; Willd. ! spec. 3. p. 1880. G.
conoideum, Lam. diet. 2. p. 775.

p. stem villous-pubescent with viscid hairs ; leaves varying from lanceo-
late to narrowly oblong.

Old fields and woods, Canada! to Louisiana! and Texas! common.
Aug—Sept.— (1) Plant fragrant, 1-2 feet high.

6. O. uliginosum (Linn.) : low, woolly, diffusely branched ; leaves lan-
ceolate-linear, tapering at the base, tomentose on both sides, especially the
uppermost; heads in terminal and sessile capitate clusters, subtended by
leaves; scales of the involucre oblong, rather obtuse, scarious, often brown-
ish ; achenia smooth. — Linn. spec. 2. p. 856 ; FI. Dan. t. 859 ; Engl. hot. U
1194 ; Michx. I fi. 2.- p. 127 ; PursK I. c. ; Hook. ! fi. Bor.-Am. I. p. 329 ;
Darlingt. ! I. c. ; DC. ! prodr. 6. p. 230.

/?. achenia minutely hispid-scabrous.— G. pilulare, Wahl. fi. Lapp. p.
205, 1. 13 ? (Less, in Linnaa, 6. p. 525.)

Common in low grounds throughout the Northern, Middle, and Western
States! and Newfoundland! Canada! Saskatchewan ! Oregon! and Cali-
fornia. July-Sept.— (I) Plant 4-6 inches high.— The forms with smooth
and scabrous achenia appear to be equally abundant, and are undistinguish-
able, except by this character. The latter also occurs in Siberia, fide Ledeb.
fi. Alt. 4. p. 57.— Marsh Cudweed.

7. O.palustre (Nutt.) : low, very woolly; stem erect, branching; leaves
spatulate-oblong or nearly linear, acute, tomentose both sides ; heads crowded
in terminal capitate very woolly clusters, which are leafy at the base; scales
of the involucre whitish or brownish, scarious, linear, obtuse ; achenia very
minutely scabrous.— NuU. I in trans. Amer. phil. soc. I.e. p. 403.

/?. achenia perfectly smooth and glabrous.


zed by G00gle

42$ COMPOSITE. Gwaphauum.

Rocky Mountains, Oregon, California (and Chili), NuttaU! fi. Sweet
Water of the Upper Platte, Lieut. Fremont!—® Plant varying from an
inch to a span high; allied to G. uliginosum.

8. O. gossypimtm (Nutt.): white and floccosely woolly; stem nearly
simple? erect; radical leaves spatulate-lanceolate, acute; the cauline
crowded, linear, acuminate, sessile, narrower towards the base ; beads con*
glomerate, sessile, terminal ; scales of the orate involucre yellowish, oval or
oval-obiong, obtuse. NuU. in trans. Amer.phiL soc. I. c. p. 404.

Shores of the Pacific near the mouth of the Oregon ; rare, NuttalL—(l)
Plant 12-18 inches high, heavy scented, with the appearance of Helichry-
sum graveolens, somewhat glandular beneath the copious pubescence. Nutt.

9. O. tnicrocephalum (Nutt): suffruticose? white and densely woolly ;
stem erect, simple ; leaves lanceolate, apiculate, sessile, narrower towards
the base, nearly all similar ; heads ovate, conglomerate in a short spike ;
scales of the involucre scarious, white and silvery, acute. NutL in trans.
Amer. pkU. soc. I. c. p. 404.

St. Diego, California: rare.— About a foot high. Leaves 1-1 i inch
long, 2-3 lines wide, white on both sides, with a blackish apiculate point.
Involucre very floccose at the base : perfect flowers about 5.— Allied appar-
ently to G. lanuginosum ; but strongly resembling some species from the
Cape of Good Hope. NuttaU.

• • • Leaves not deourrent: scales of the involucre never yellow: heads rmemsm

10. G. purpureum (Linn.) : stems mostly simple or branched from the
base, erect or ascending, tomentose ; leaves oblong-spatulate or oblanceolate,
mostly obtuse, mucronate, tapering to the base, somewhat arenose-wooUy,
but green above, densely tomentose and canescent beneath ; heads in sessue
clusters in the axils of the upper leaves, and spicate at the summit of the
stem ; scales of the involucre lanceolate-oblong, scarious, tawny or whitish,
the inner often marked with purple ; achenia minutely scabrous-— Linn.!
spec. 2. p. 854 (ex syn. Oronov. ! Sf Dill. EUh. U 109) ; Michx. ! fi. 2. p.
127 ; EU. sk. 2. p. 325; Darlingt. ! JL Cest. p. 492; DCJprodr. 6. p.
232. G. spathulatum, Lam. diet. p. 758. G. Americanum, Witld. spec. 3.
p. 1887 (excl. syn. ^Stoartz. Ar. ) ; Pursk, ft. 2. p. 525. G. Pennsylvania
cum, Wilid. enum. p. 867; DC! 1. c. G. hyemale, Walt. Car. p. 203.—
Varies, with the clusters more spicate, and the pubescence closely appressed
and silvery. G. spicatum (Lam. U c?) DC! 1. c. in part ; NutL tn trans
Amer. phil. soc. I. c.

p. ? falcatam: leaves nearly equally woolly on both sides, narrowly ob-
laoceoiate ; the upper nearly linear. - G. falcatum, Lam. I. c. ? DC. L c
G. Americanum £., Hook. ! compan. to boU mag. 1. p. 96.

Sandy or gravelly soil, from the coast of New Hampshire ! to Louisiana !
and California, ex NuttaU. 0. Louisiana! and Texas! July-Sept., or in
the Southern States, March to June. — Root apparently annual, at least in the
northern plant; but described as perennial by Muhlenberg, Elliott, Dar-
lington, &c. ; which appears to be the case in some southern forms of this
variable species. Stem 6-20 inches high, slender. All the species of due
subdivision are ill defined.

1 1. G. ustulatum (Nutt.) : perennial, herbaceous, erect, canescently tomen-
tose; stem simple, terete, floccose-pubescent; leaves obloog-spatulate, ob-
tuse, mucronulate; the upper ones narrower, sessile (not decurrent); beads
oblong, aggregated in the axils of the upper leaves into a continuous short
and dense oblong spike; scales of the involucre lanceolate and linear, acute,
brownish towards the points, Nutt. in trans. Amer. pkU. soc. I. c. p. 405.


zed by G00gle

Gwaphalium. COMPOSITE. 42* •

Plains of the Platte towards the Rocky Mountains, and near St. Barbara,
California, Nultall. — Said to be nearly allied to G. spicatum, and therefore
perhaps not distinct from G. purpureum.

12. G. sylvaticum (Linn.) : stem simple, herbaceous, erect, leafy, tomen-
tose; leaves linear- lanceolate or linear, woolly beneath or on both sides;
heads axillary, sessile [forming a leafy spike]. DC. I. c. — Wahl. fl. Lapp.
p. 203 ; {FL Dan. t. 254 Sr 1229 ;) Schkuhr, handb. t. 243.

Greenland! and Labrador! (Herb. Schwcinitz !) U — Pursh is surely
mistaken in giving this species as a native of New York and Canada ; in
stony woods.

§ 2. Pistillate flowers in a single series : aehenia obovoid, obcompresscd.—-
Homalotheca, Endl. (Omalotheca, Cass., DC.)

13. G. supvnum (Villars) : caupitose ; flowering stems simple, slender,
woolly above ; leaves linear, woolly ; heads oblong, solitary, or few and spi-
cate-racemose ; scales of the involucre lanceolate-oblong, acute, brown ;
aehenia minutely hairy. — VUl. Delpk. 3. p. 192; Engl. bot. t. 1193;
Hook. fl. Bor.-Am. 1. p. 329. G. pusiilum, Httnkt ; Schkuhr, handb. L
267. Omalotheca supina, DC! proar. 6. p 245.

Labrador, Dr. Morrison. Greenland, Herb. DC. Dry ravine of the
Amonoosuck, White Mountains of New Hampshire, NuUau! (where it has
not since been found.)— U Plant 2-4 inches high.

159. ANTE NN ARIA. Gartn. (excl. spec.) ; R. Br. in Linn, trans. I. c.

Heads many-flowered, dioecious; the corolla tubular, 5-toothed, in the
pistillate flowers filiform. Scales of the involucre imbricated, scarious,
colored. Receptacle convex or nearly flat, alveolate. Style in the fertile
flowers 2-cleft ; in the staminate simple and undivided, or nearly so. Aehe-
nia nearly terete. Pappus a single series of bristles, in the pistillate flowers
capillary, in the staminate clavate or barbellate at the apex. — Perennial
tomentose-canescent herbs; with alternate entire leaves, and corymbose (or
sometimes solitary) heads. Involucre white, rose-color, or brownish, never
yellow. Corolla yellowish.

§ 1. Fertile heads mostly with a few imperfect staminate flowers in the centre :
pappus in the sterile plant somewhat obscurely clavate: stems erect, not
aespitose or stolonifcrous.—-MaTgaripe*, DC.

\. A. margaritacea (R. Br. 1. c.) : stem woolly-tomentose, corymbose at
the summit ; leaves linear-lanceolate, tapering to an acute point, 1-3-nerved,
with revolute margins; the upper surface at first arenose- woolly ; the lower
tomentose; scales of the involucre nearly white, in the fertile plant obtuse,
in the sterile rounded at the summit.— Hook. ! fl. Bor.-Am. 1. p. 329 ; DC. !
prodr. 6. p. 270. Gnaphalium margaritaceum, Linn. spec. 2. p. 850 ;
Michx. ! fl. 2. p. 127 ; Engl bot. U 2018 ; Pursh, fl. 2. p. 524 ; DarlingU
fl. Cest. p. 494. G. Amencanum, Clusius, hist. 1. p. 327, /. 3.

Dry woods and fields, Canada! Hudson's Bay, and Newfoundland! to
the mountains of the Southern States! and west to the Rocky Mountains!
Unalaschka! and Oregon! (Also naturalized? in Europe.) Aog.-Obt»— •
Stem 1-2 feet high. The sterile plant, which is scarcely known in Evrope,
is here nearly as abundant as the fertile.— Everlasting.


zed by G00gle

430 COMPOSITE. Antsrnaria.

§ 3. Heads entirely diaeious : pappus of ike sterile flowers mostly strongly
clavate : stems' cmspitose^ often surculose, or stoloniferous.^-C&tipes^ DC*

2. A. luzuloides : silky-villous throughout ; sterile stems or stolons none ;
leaves linear, obscurely 3-nerved, tapering to the base ; corymb compound,
loose; sterile heads small; the exterior scales of the glabrous ioyolacre
short and rounded ; the inner ones spatulate, with dilated and very obtuse
white tips.

Oregon or Rocky Mountains. (Drummond or Douglas.) — Stem 10 inches
high, slender, simple, clothed like the leaves with a close appressed silky
pubescence. Leaves 2-3 inches long, 1-2 lines wide. Heads numerous
(40-50) in an open compound corymb, not more than half the size of those of
A. Carpathica: the scales of the involucre not sphacelate or eroded. Pappus
not denticulate or scabrous ; the tips very much dilated and spatulate.— Al-
though most related to Hooker's striking var. pulcherrima of the following
species, yet it has very much smaller and glabrous heads, and narrower
leaves ; and widely diners from the original A. Carpathica. We have only
seen the staminate plant.

3. A. Carpathica (R. Br. 1. c.) : sterile stems not stoloniferous ; leaves
lanceolate, or the radical oblanceolate, 3-nerved, villous- tomentose ; corymb
capitate; involucre very woolly and turbinate at the base, brownish,
the inner with elongated and shining sphacelate-scarious (often white)
tips, which are obtuse in the sterile, but acute in the fertile heads.
— Bluff SfFing. fl. Germ. 2. p. 348; Hook J ft. Bor.-Am. 1. v. 329;
DC ! prodr. 6. p. 269. Gnaphalium Carpathicum, Wahl. fl. Carp,
p. 258, t. 3 ; Koch* fi> Germ. Sf Helv. p. 364. (Varies with the leaves
nearly glabrous above, or woolly both sides. Hook. I. c.)

/?. pulcherrima (Hook. ! Kc): tall (a foot or more high), and silky-tomen-
tose throughout.

Island^ of Anticosti, Pursh! Goldie. On the higher Rocky Mountains,
about lat. 52°, Drummond. , r and Mt. Rainer, Mr. Tolmie! p. Swamps of
the plains among the Rocky Mountains, Drummond ! — Heads 3-8, or in 0.
8-15, in a close corymb. Pappus in the sterile flowers denticulate ; the
clavate tips either spatulate and obtuse, or lanceolate and acute.

4. A. alpina (Gsrtn.) : sterile stems short and ascending, or none ; leaves
villous- tomentose, at least on the lower surface ; the radical spatulate, the
cau line linear; heads 3-5 in a terminal cluster, nearly sessile; involucre
woolly at the base; the livid inner scales moslly erose-denticulate, obtuse in
the sterile, but acute or acuminate in the fertile heads.— U. Br. I. c. ; Less,
in Linn<ea % 6. p. 221; Hook. ! I. c. ; DC. ! I. c. A. Labradorica, Null.! in
trans. Amer. phil. soc. L c. p. 406. Gnaphalium alpinum, Linn. ; WahL
ft. Lapp. p. 203.

(3. monocephala: heads solitary or rarely geminate. — A. monocephala,
DC. ! I. c.

Greenland and Labrador ! Hudson's Bay ! and along the Arctic regions to
Kotzebue's Sound ! Unalaschka ! &c.— Smaller than the preceding. Pap-
pus in the sterile plant strongly clavate.

5* A. dioica (Gaertn.) : sterile stems stoloniferous ; leaves silvery-tomen-
tose-canescent on the lower or on both sides (commonly glabrous above) ; the
"radical spatulate, one-uerved or 3-nerved at the base ; the cauline linear-

. ' lanceolate, appressed ; heads several, in a capitate corymb ; scales of the in-
volucre with erose-denticulate mostly obtuse (white, ochroleucous, rose-color,
or purple) tips ; achenia perfectly smooth.— Gtertn. ft. 2. p. 410, t. 167 ;

* Rook. ! I. c. ; DC ! I. c. Gnaphalium dioicum, Linn.; Engl. boL t. 267;
Wa%. fl. Lapp. p. 202.


zed by G00gle

Antehharia. COMPOSITE. 431

0. parvifolia : heads glomerate-capitate ; leaves silvery tomentose-canes-
cent on both sides ; scales of the sterile involucre ochroleucous, of the fertile
purple. — A. parvifolia, Nutt. ! in trans* Amer. pkil. soc. (n. ser.) 7. p. 406.

Arctic America ! and from Newfoundland! and Labrador to the Rocky
Mountains! 0. Black Hills of the Platte, Nuttall! Wind River Chain of
the Rocky Mountains, Lieut. Fremont ! (a. &fp.)

6. A. plantaginifolia (Hook. ! 1. c.) : sterile stems stoloniferous or fla-
celliform, the flowering simple and scape-like; leaves silky -villous on one or
both sides when young, but when old glabrous above and canescent beneath ;
the radical petioled, oval or obovate-spatulate (usually large), 3-nerved ; the
cauline lanceolate, appressed; heads in a small crowded corymb; scales of
the involucre with white (rarely purplish) erase or crenulate tips; those of
the sterile plant obtuse, of the fertile narrow and mostly acute ; achenia mi-
nutely glandular-papillose.— A. plantaginea, DC. ! I.e. Gnaphalium plan-
ta^fnifolium, Linn..' spec. 2. p. 850 ; Willd. spec. 3. p. 1804. (G. planta- L/

Sinis folio, Pluk. aim. t. 348, /. 9.) G. plantagineum, Murr. syst. p. 748 ;'
y ursh, fi. 2. p. b2b ; Ell. sk. 2. p. 327. G. dioicum, var. plantagimfolium,
Michx. ! fl. 2. p. 128. G. dioicum & var. plantagmifolium, Darlingt. !
fi. Cest. p. 494.

p. monocephala: stems shorter, bearing a single larger head. Michx. I. c.
— Gaaphalium monocephalon, Carpenter i mss.

Woods and sterile knolls, &c. from Hudson's Bay ! to Florida ! Louis-
iana! and west to the Rocky Mountains! 0. Louisiana, Prof. Carpenter! * 9
Near Philadelphia, Mr. Lea ! &c. April-May : in the Southern States,
Febv-March. — Plant 4-10 inches high. Radical leaves often 2-3 inches
long, and one or two wide. .Pappus of the sterile ffewers sparsely barbell ate,
more or less evidently thickened towards the supex.-iPlwitain-Uaved
Cud-weed. •

7. A. racemosa (Hook. ! 1. c.) : sterile stems stoloniferous ; leaves tomen-
tose beneath; the upper surface and*he scape-like stem nearly glabrous; the
radical oval or obovate-spatulate, petioled, somewhat 3-nerved ; the cauline

Online LibraryJohn TorreyA flora of North America: containing abridged descriptions of all the known indigenous and naturalized plants growing north of Mexico; arranged according to the natural system → online text (page 160 of 171)