foliolis plurifariam imbricatis oblongis acutiusculis apice patulis. Nees.—Mt. Hort. Kew.
ed. 1. v. 3. p. 210. Pursh, FI. Am. v. 2. p. 556. Nees, Ast. p. 43.
Hab. Nova Scotia. (Ait.) Newfoundland, ilfiss Brenton. Dr. Morrison. Mr. Cormack.
10. A. ascendens; (Lindl.) foliis oblongo-linearibus subspathulatis elongatis integerri-
mis glabris margine ciliato-scabris, caulibus ascendentibus simpliciter racemosis v. corym-
bosis, involucri glabri foliolis numerosis acutis patulis. Lindl. MSS.
H ab. Banks of the Saskatchawan. Drummond.—“ Ab A. Amello diversus glabritie longitudine foliorum
involucrisque foliolis numerosis angustioribus acutioribus; habitu similis.” Bindley; who further remarks
that it comes nearest to a Caucasian form of A. Amellus.
11. A. spathulatus; (Lindl.) foliis spathulatis obtusis integerrimis, ramorum basi
dilatatis amplexicaulibus, caule simpliciter racemoso, pedunculis subaphyllis folio breviori-
bus, involucri foliolis linearibus acutis erectis tomentosis. Lindl. MSS.
Hab. Bear Lake and Fort Franklin, on the Mackenzie River. Dr. Richardson.
12. A. modestus; (Lindl.) foliis lanceolatis acuminatis grosse serratis glabris, caule
simplici folioso, corymbo paucifloro foliis supremis breviore, involucri foliolis linearibus
acuminatis. Lindl. MSS.
H ab. Mountain woods, at the mouth of the Smoking River, lat. 56°. Drummond.—“ A. brumalem nanum
refert, sed affinitate N. Anglice proxime sequitur.” Lindl.
13. A. Nova Anglia; foliis lanceolatis attenuatis auriculato-amplectentibus integerrimis
hispido-scabris, caule stricto corymboso-composito, ramis arcuatis, involucri foliolis laxis
angustis. Nees.—Linn.—Pursh, FI. Am.~v. 2. p. 549. Nees, Ast. p. 46. Elliott, Carol, v.
2 .p . 351.
H ab. Canada. Pursh.—I possess no northern specimen of this plant. It is common throughout the
United States, and is one of the most beautiful of the Genus.
Sect. III. Genuini.
A. Heterophylli. Nees.
14. A. cordifolius; foliis cordatis serratis petiolatis supra scabris subtus pilosis, caule
racemoso-paniculato, ramis paucifoliis laxis, involucro arete imbricato. Nees. Linn.
Pursh, FI. Am. v. 2. p. 552. Nees, Ast. p. 52. Elliott, Carol, v. 2. p. 364.
Hab. Throughout Canada; abundant.
15. A. paniculatus; foliis cordatis serratis petiolatis supra scabris subtus glabris, caule
ramisque racemoso-thyrsoideis foliosis strictis involucro laxe imbricato. Nees.—Ait. Hort.
Kew. ed. 1. v. 3. p. 207. Nees, Ast. p. 53.—varJ.? floribus majoribus, foliis subcarnosis,
infimis solummodo subcordatis.
Hab. Canada. Pursh. Saskatchawan. Drummond.—5. Slave Lake. D r. Richardson.—“ Thereis,” as Dr.
Boott justly observes, “ great confusion about the heart-leaved Asters. Mr. Nuttallsays that A. paniculatus is
not distinct from A. undulatus, and that A. heterophyllus is not distinct from A. cordifolius.” Professor
Lindley remarks, upon one of my specimens from Dr. Short, of A. paniculatus, that “ it approaches A.
undulatus.” The probability is that they are all forms of one and the same species: though I must observe
that I have myself seen noacknowedged undulatus and heterophyllus from British North America.
16. A. sagittifolius; * foliis radicalibus petiolatis cordato-subsagittatis (vel et profunde
cordatis) oblongis glabris inaequaliter serratis margine scabris, caulinis ovato-oblongis in
petiolum alatum contracts serratis glabris, caule racemoso-composito, involucro arete imbricato.
Nees.— Willd. Sp. Pl. v> 3. p. 2035. Pursh, FI. Am. v. 2. p. 551. Nees, Ast. p.
56. Elliott, Carol, v. 2. p. 362.
Hab. Lake Huron. Dr. Todd. Montreal Mr. Cleghom. Red River. Douglas.
B. Homophylli.
17. A. Comuti; foliis oblongis profunde serratis in petiolum attenuatis supra pube minu-
tissima adspersis subtus glabris margine scabris, caule ramoso-paniculato, involucro laxo
imbricato. Nees.—«. caule multifloro, floribus minoribus, radio angustiore, ramis paniculas
longioribus erectis. Nees.— Wendl.—Nees, Ast. p. 58.—A. Tradescanti. Hoffm. A.
patulus. Lam.—A. tardiflorus. Herb. Linn, (fide Lindl.)
Hab. Canada. Mr. Cleghom.
18. A. acuminatus; foliis ovato-lanceolatis serratis in petiolum adnatum decurrentibus
supra scabris subtus Iambus, caule racemoso, ramis brevibus thyrsoideis simplicibusve,
involucri laxe imbricati foliolis lanceolatis. Nees.—Mich. Am. v. 2. p. 109. Pursh, FI. Am.
v. 2. p. 555. Hook. Bot. Mag. t. 2707. Elliott, Carol, v. 2. p. 355.
Hab. Canada. Mr. Cleghom. Mrs. Sheppard. Lady Dalhousie. Mrs. Percival.
19. A. pracox; foliis ovato-lanceolatis patenti-serratis in petiolum adnatum attenuatis
glabris supra in ambitu scabris basin versus ciliatis, radicalibus ovatis petiolatis, caule racemoso,
ramis paucifloris basi nudis, involucro laxo subasquali.— Nees. Willd. En. Hort. Berol.
Suppl. p. 58. Nees, Ast. p. 62.
H ab. Fort Franklin, on the Mackenzie River. Dr. Richardson.
20. A. ciliolatus (Lindl.) .; foliis omnibus ovatis medio argute serratis in petiolum abrupte
angustatis ciliatis in ambitu scabris, caule simplici, capitulis axillaribus sessilibus v. brevi-
pedicellatis subsolitariis, involucri foliolis erectis apice membranaceis. Lindl. MSS.
Hab. Slave Lake. Dr. R ichardson“ Valde affinis A. prcecoci; differt foliis abrupte nec sensim in
petiolum angustatis caulinisque radicalibus conformibus conspicue per totum ambitum ciliatis, capituhs sub-
sessilibus dimidio minoribus, involucri foliolis non apice herbaceis, denique statura humili.” Lindl. The
very few specimens in the Collection are 6—8 inches high.
* Allied to this is an interesting new species found by Dr. Short, on cliffs of the Kentucky River, which I am anxious
should bear the name of its estimable discoverer, an excellent and liberal Botanist. Professor Lindley has favoured me
with the following character and remarks:—
“ A. Shortii; foliis subtus pilosiusculis ambitu scabris, caulinis alte cordato-lanceolatis acuminatis pone basin grosse
serratis integrisve ramulorum cordato-ovatis omnibus petiolatis, petiolis apteris, caule racemoso vel racemoso-composito,
involucro imbricato.—Rete foliorum maximum. A. diversifolio proximus, inter earn speciem et A. sagittifolium collo-
candus, foliis omnibus cordatis acuminatis petiolatis petiolisque ne minime quidem alatis apteris distinguendus.” Lindl.
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