Petropolitanoe. Hue A. Jcnizeensis, Spreng. Syst. Veget. v. 3. p. 69. n. 27. et WiUd. Herb,
ex adnotationibus Stevenianis in Herb. Willd. Bess. MSS.
Hab. 5. Saskatchawan. Dr. Richardson. Drummond. On Limestone rocks on the higher parts of the
Assinaboyne River, and sparingly on Red River. Douglas.—(Dr. Richardson’s A. virgata is undoubtedly a
synonym to this, although Dr. Besser is disposed to refer that plant to the A. desertorum.—H.)
S e c t . II. A b r o t a n u m . Bess. Tentamen de Abrotanis s. de sectione Artemisiarum Linnasi
in Nouveaux Mémoires de la Soc. Imp. des Natur. de Moscow, v. 2. 1832.—Artemisiæ.
H. Cass, et Lessing.
2. A. Lindleyana (Bess.); fruticosa, (panicula spicata frutescens,) superne canescens,
calathidibus spica paniculatis subhemisphæricis erectis flosculis nudis, periclinii incani
squamis apice scariosis extimis foliaceis, foliis sublinearibus subtus incano-tomentosis. Bess.
Monogr. Art. ined. cum. ic.—a. légitima; folia integerrima 1—1^ longa, vix ^ lata.—/3.
brevifolia; fors status serotinus : nam adsunt tantum folia fasciculorum unguicularia.— y.
subdentata; folia versus apicem uno alterne 1— longa, 1-2'" lata.—8. Coronopus; folia
Plantaginis Coronopi.
Hab. North-West coast of America. Douglas, in Herb. Lindl. n. 16, 14, 18, 15.—(With this I am
unacquainted.—H.)
8. A. Ludoviciana (Bess, non Nutt.); suffruticosa erecta, calathidibus virgato-paniculatis
globosis subcernuis, flosculis nudis, periclinii tomentosi squamis ext. sublanceolatis mem-
branaceo-marginatis subpinnatifidis, laciniis linearibus acutis margine revolutis subtus
candidis remotis divergentibus.—Nutt, in Spreng. Syst. Veget. v. 3. p . 490. Bess. Monogr.
Art. ined. cum ic.—(A. discolor. Dougl. in Herb, nostr.)
Hab. Rocky Mountains, Arctic America. Dr. Richardson. Rocky situations, near the Spokan and
Kettle Falls. Douglas.—I may observe that Mr. Nuttall’s A. Ludoviciana is a Missouri plant, whence I
possess specimens precisely agreeing with his description, and totally different from the present, having large,
entire, or rarely pinnatifid leaves, downy on both sides.
4. A. Hookeriana(Bess.); suffruticosa erecta, calathidibus paniculatis globosis nutantibus,
panicula thyrsoidea parum foliosa, periclinii albo-lanati squamis margine scariosis inter-
mediis rotundatis, foliis subtus cauleque candidis, caulinis pinnatifidis, laciniis floralibusque
lineari-lanceolatis acutis. Bess. Monogr. Art. ined. cum ic.
Hab. Rocky Mountains. Drummond.
5. A. vulgaris; suffruticosa erecta, calathidibus spicato-paniculatis ovatis cernuis demum
erectis, panicula foliosa patente, flosculis nudis, periclinii squamis exterioribus incano-
tomentosis, interioribus scariosis nitidis, foliis subtus albo-tomentosis, caulinis pinnatifidis
pinnis laciniatis incisis grosse serratis integrisve summis ramisque sublinearibus integerrimis.
—Linn. Sp. P l.p . 1188.—y. vulgatissima; foliorum laciniis lineari-lanceolatis inferiorum vix
inciso-dentatis, panicula magna erecta.
Hab. Throughout Canada; and as far as the Arctic Circle. Dr. Richardson. Drummond. Sandy
Plains, West of the Rocky Mountains. Douglas, y. North-West coast. Douglas, in Herb. Lindl.
6. A. Indica; suffruticosa erecta, calathidibus racemoso-paniculatis ovatis, panicula
foliosa patente, racemis ante anthesin pendulis, flosculis nudis, periclinii junioris subtomentosi
demum glabri squamis exterioribus foliaceis acutis, interioribus membranaceis obtusis,
foliis subtus cinereo-tomentosis, inferioribus pinnatifidis superioribus trifidis summis simpli-
cibus laciniis lanceolatis inferioribus subdentatis vel incisis.— Willd. Sp. PI. v. 3. p. 1846.
Bess. Monogr. Art. ined. cum ic.-rfy Canadensis; folia caulina 3-partita subtus cinerea,
margine vix revoluta, periclinii squamae manifeste tomentosae.
Hab. /3. Canada. Goldie, in Herb. Lindl.
7. A. longifolia; suffruticosa erecta, calathidibus paniculatis ovatis (?), panicula foliosa e
spicis thyrsoideis axillaribus, flosculis nudis, pericliniis scariosis fuscis glabris, foliis superne
glabris subtus albo-tomentosis lanceolatis breviter cuspidatis, inferioribus antice inaequaliter
serrulatis basi incisis. (specimen juvenile.)—Nuttall(?) in Spreng. Syst. v. 3. p. 488. Bess.
Monogr. Art. ined. cum ic.
Hab. North-West America. Dr. Scouler.—Of this, Dr. Scouler gathered two specimens, one above
described with glabrous involucres; the other with very downy ones. This latter I can scarcely distinguish
fr6m what I take to be the true A. Ludoviciana of NuttalL
8. A. Purshiana (Bess.); suffruticosa adscendens incana, calathidibus paniculatis ovatis,
panicula foliosa stricta, flosculis nudis, foliis subtus albidis, caulinis lanceolatis subcuneatis
mucronatis integerrimis. Bess. Monogr. Art. ined. cum ic.—a. latifolia; folia elliptico-
lanceolatis 1^" longis, ^" latis.— (A. integrifolia. Rich, in Frankl. ls£ Journ. ed. 2. App.p.
30. fide Herb, nostr.)—/3. angustifolia; foliis lanceolatis, 1-^" longis, 3W latis.
Hab. On the plains of the Saskatchawan.' Dr. Richardson. Drummond.—/3. Red River. Douglas, in
Herb. Lindl.—(This ft certainly the A. integrifolia of Dr. Richardson, and I presume also of Pursh; but
probably it is not the Siberian plant figured by Gmel. Sib. v. 2. t. 48. The leaves are sometimes downy on
both sides, sometimes glabrous above, whence I fear it comes too near the following species.—H.)
9. A. Douglasiana (Bess.); suffruticosa (?) stricta canescens, calathidibus spicato-paniculatis
hemisphasricis, panicula subfoliosa, flosculis nudis, periclinii squamis ellipticis, interioribus
apice scariosis, foliis subtus incanis, caulinis lanceolatis acutis integerrimis. Bess. Monogr. Art.
ined. cum ic.
Ab A. integrifolia differt foliis integerrimis, panicula magna, calathidibus minoribus glomerato-spicatis;
ab A. Purshiana vero caule stricto, foliis acuminatis (non mucronatis,) panicuke ramis elongatis, calathidibus
majoribus, periclinii squamis apice scariosis (nec incano-tomentosis,) colore totius planfee minus cano, foliisque
supra viridibus.
Hab. North-West America. Douglas, in Herb. Lindl.
10. A. arctica (Bess.); csespitosa, calathidibus racemoso-spicatis glomeratis globosis,
pedunculis apice lanatis, flosculis apice subpilosulis, periclinii squamis superne fuscis scariosis,
foliis subsericeis inferioribus pinnatisectis, superioribus trifidis, laciniis radicalium tri-quin-
quefidis superiorum indivisis linearibus obtusis. Bess. Monogr. Art. ined. cum. ic.
Hab. From Bear Lake to the shores of the Arctic Sea. Dr. Richardson.—(Two of the specimens in this
collection have the whole plant clothed with long silky hairs. H )—In my first account, I gave the name of
A. borealis to this plant; but have been convinced by Lessing’s work, that it is not the A. borealis of Pallas.
Its appellation is therefore changed as above, and I only regret not having altered it to Richardsoniana, as it
is to be feared the present name cannot stand, Lessing having thus called a variety of A. Chamissoniana.
Hess.
2 S 2