(Floribus spicatis, radice tuberosa.)
Is L. scariosa; magis minusve pubescenti-scabra, foliis lanceolatis inferioribus longe petio-
latis superioribus linearibus multo minoribus, floribus racemosis remotis, pedicellis brac-
teatis, involucris globoso-hemisphsericis, squamis obovatis obtusissimis membranaceis coloratis
subciliatis, flosculis numerosis, pappo scabro.— Willd. Sp. PI. v. 3. p. 1635. Pursh, FI. Am.
v. 2. p . 509. Elliott, Carol, v. 2. p. 280. Sims, Bot. Mag. t. 1709. Bigel. FI. Bost. ed. 2.
p . 293.—Liatris squarrulosa. Mich. Am. v. 2. p . 92.—Serratula scariosa. Linn. Sp. PI.
p. 1174.
Hab. Plains of the Saskatchawan and of the Red River. Drummond. Douglas.
2. L . squarrosa; glabriuscula vel pubescenti-scabra, foliis linearibus obscure trinerviis
inferioribus longe attenuatis superioribus minoribus, racemo flexuoso paucifloro folioso,
floribus breve pedicellatis nunc sessilibus, involucris ovato-cylindraceis, squamis magnis
patenti-squarrosis exterioribus majoribus rigidis foliaceis trinerviis interioribus membranaceis
mucronato-acuminatis vix coloratis, flosculis plurimis, pappo pluraoso.— Willd. Sp. PI.
v. 3. p. 1634. Mich. Am. v. 2. p. 92. Pursh, FI. Am. v. 2. p. 509. Elliott, Carol, v. 2. p.
282.—Serratula squarrosa, Linn.—(3. luxurians. L. intermedia. Lindl. in Bot. Reg. t. 942.
Hab. Canada. Mr. Goldie. Douglas.—Variable in pubescence, as are the other species of this beautiful
and favourite Genus. I fear the L. intermedia of the Bot. Reg. can only be considered a luxuriant state of
the present. Mr. Goldie’s original specimens in my Herbarium do not at all differ from the true squarrosa ;
and the cultivated individual only exhibits longer flower-stalks.
3. L . punctata; caule erectiusculo piloso, foliis linearibus marginatis glabris ciliatis
utrinque impresso-punctatis, spicis elongatis densis non raro foliosis, involucris subcylindra-
ceis, squamis imbricatis non squarrosis exterioribus rigidioribus omnibus impresso-punctatis
pungenti-acuminatis marginibus ciliato-lanatis, pappo valde plumoso. (Tab. CV.) ~
Cadis pedalis ad sesquipedalem, erectus vel adscendens, striatus, glaber vel rarissime pilosus. Folia
numerosa, 4—5-pollicaria, linearia, infima basi dilatata, amplexicaulia, superiora sensim minora, omnia linearia,
rigida, acuta, uninervia, plana, marginata, margine albido, remote ciliata, pagina utrinque glaberrima, impresso-
puuctata. Spica (seu racemus spicatus) elongata, parte inferiori ssepe foliosa, densiflora. Involucrum lato-
cylindraceum, squamis imbricatis impresso-punctatis margine ciliato lanatis mucronato-acuminatis, mucrone
subrecurvo, exterioribus rigidis, viridibus, interioribus magis membranaceis ssepe coloratis. Flosculi sub-
quinque, pulcherrime rosei. Achenium lineari-clavatum, subtriquetrum, striatum, pilosum. Pappus plumosus.
Hab. Plains of the Saskatchawan, Drummond; and on the Red Deer and Eagle hills, in dry soils,
common. Douglas.—Neither among the numerous individuals in my Herbarium, nor the species described
in books, do I find any that agree with this, though its nearest affinity is perhaps to L. resinosa of
Nut tall. Here, too, without doubt, the impressed dots, so remarkable on the leaves and involucre, are
occasioned by resinous glands. The spike is generally half as long as the plant.
Tab. CV. Liatris punctata. Fig. 1, Leaf; fig. 2, .Flower; fig. 3, Floret; fig. 4, Fruit:—magnified.
21. PYRROCOMA. Nov. Gen.
Pappus uniserialis, flore longior, fulvus, scaber. Cor. limbo a tubo non distincto. Involucrum
multiseriale, laxum; foliolis interioribus membranaceis integerrimis; ext. foliaceis
spinuloso-dentatis.— Herba Boreali-Americana ; foliis alternis, coriaceis, subspinoso-dentatis,
punctato-pellucidis ; capitulum terminate, solitarium; involucris imbricatis.—Nomen d
fulvus, et KOfCTi, hair; ob pappi colorem derivatum.
1. P. carthamoides. (Tab. CVI.)
Radix — ? Caulis simplex, pedalis, erectus, teres, striatus, pubescens. Folia alterna, remota, lanceolate,
seu oblongo-lanceolata, acuta, pallide viridia, coriacea, obscure pubescentia, medium versus prsecipue dentato-
seu spinoso-serrata, punctato-pellucida, venosa; inferior a longe petiolata; superiora sessilia. Flos terminalis
magnum, solitarium. Involucrum e foliolis pluribus laxe imbricatis, sed vix squarrosis; interioribus erectis
lineari-oblongis acutis, membranaceis, integerrimis; exterioribus sensim majoribus patentibus, oblongis, subspinoso
dentatis, pubescentibus, demum foliis semulantibus. Flosculi numerosi, parvi, inconspicui. Recep-
taculum nudum, (seu Rachis ebracteolata. Less.') v Corolla tubulosa, basi sensim angustior, limbo 5-dentato,
dentibus erectis. Anther<z subinclusse, basi nudse (ecaudate), apice appendicula membranacea aucta. Stylus
vix corolla longior. Stigmatis laciniee lineares, exserte, basi teretes nudse, demum compresses, extus dense
pilosse, intus glabrae, sulcate. Ovarium oblongum, teres, substriatum. Pappus e pilis plurimis, uniserial ibus,
fulvis, scabris, corollam excedentibus.
Hab. North-West coast of America. Douglas.—A. solitary specimen of this plant is all that I have
had the opportunity of seeing. In habit, it resembles the genus Carthamus; but from; the structure of the
floscules, and especially of the stigmata, I can have no hesitation in referring it to Eupatorinece, near
Liatris. The pappus, even in the state of early flower, is remarkably long and tawny, inclining to red.
The leaves, when held up between the eye and the light, exhibit numerous pellucid dots, which appear to
be the areolse of the obscure reticulations.
Tab. CVI. Pyrrocoma carthamoides. Fig. 1, Inner scale or leaflet of the involucre; fig .2 , Intermediate
do.; fig. 3, Outer do.; fig. 4, Flower; fig. 5, Corolla, with its stamens, style, and stigmas; fig. 6, Extremity
of the style and stigmas; fig. 7, Anthers; fig. 8, Portion of a hair of the pappus:—magnified.
Subtrib. II. T ussilagine/e. Capitula heterogama, scepe subdioica. Less.
22., NARDOSMIA. Gass.
Capitula subdioica, mascula radio 1-seriali foemineo cincta, fceminea homogama. Cor.
$ lingulata. Pappus pilosus, marium multo minus copiosior quam foeminearum.—Herbss
jEuropeas (et America Arcticce) perennes, tantum basi ima foliates, simplices; foliis petiolatis,
rotundis, angulatis; capitulis thyrsoideis, multifloris; foliolis involucri asqualibus; rachide
nuda. Less.
1. N.frigida; foliis cordatis inasqualiter dentatis subtus tomentosis,—N. angulosa. Cass.
—Less, in Linncea, v. 6. p. 107.—Tussilago frigida. Linn.—FI. Dan. t. 61. Pursh, FI.
Am. v. 2. p. 531.—/3. foliis magis sinuato dentatis.—Tussilago corymbosa. Br. in Parry’s ls£
Voy. App. p. cclxxix. Rich, in Frankl. 1 stjourn. ed. 2. App.p. 33. (in partem.)
Hab. Canada. Pursh. From Lake Winipeg, in lat. 52°, to Fort Franklin, in lat. 66°. Dr. Richardson.
—Very few of the specimens gathered by Dr. Richardson have leaves exactly answering to the above
character, and of these, some are nearly ten inches long, independent of the petiole.
2. N. sagittata; foliis cordato-vel reniformi-sagittatis sinuato-dentatis subtus tomentosis.
—Tussilago sagittata. Pursh, FI. Am. v. 2. p. 332. Rich, in Frankl. ls£. Journ. App. p. 33.
Hab. Hudson’s Bay, (Hutchinson in Herb. Banks.) to the swamps in the Rocky Mountains, (Drummond,)
and from Lake Superior, in lat. 48°, to Fort Franklin, in lat. 66°, north. Dr. Richardson. Drummond.
—A mere variety, I fear, of the preceding.
3. N. corymbosa; foliis cordatis profunde sinuato-lobatis angulatis dentatis subtus tomentosis.—
Tussilago corymbosa. Br. in P arry’s ls£ Voy. App. p . cclxxix.
Hab. From Fort Norman, on the Mackenzie River, to the extreme Arctic regions. Capt. Sir E. Parry.
2 Q 2