aequantibus.—Aster graminifolius. Herb. Banks* MSS.—Pursh, FI. Am. v. 2. p. 545. Rich,
in Frank. 1 stJoum. ed. 2. App.p. 32. (fide Herb, nostr.)
Hab. Hudson’s Bay. Herb. Banks. Dr. Richardson. Slave Lake. Dr. Richardson.—This is indeed very
closely allied to G. nemoralis and G. linifolia ; but there are, besides the costa, two lateral ramified nerves
in the leaves, whose margins and costa too are hairy, and the pappus is almost white.
58. TOWN SENDI A. Nov. Gen.
Capitulum heterogamum. Flosculi radii ligulati fceminei; disci hermaphroditi, regulares.
Involucrifoliola pluriserialia imbricata. Pappus uniserialis; radii brevis, paleaceo-subulatus,
insequalis; disci pilosus, pilis elongatis scabriusculis.^—Herba America borealis humilis acau-
lis. Radix fusiformis, lignosa, longe descendens; superne scepe divisa, reliquiis foliorum
vetustorum obtecla. Folia omnino radicalia, numerosa, erecto-patentia, linearia, subspa,thulata,
integerrima, utrinque adpresso-sericea, basi dilatata, et utrinque ciliata. Flos solitarius, foliis
immersus et obtectus, ratione planta magnus. Involucrum ovatum,foliolis sericeis, lineari-
subulatis, erectis, imbricatis. Flosculi radii ligulati, erecti, pallide rosei, marginibus involuti,
apice dentibus tribus conniventibus. Stigma bifldum, purpureum, glabrum. Ovarium oblongum,
compresso-triquetrum, pubescens. Pappus brevis sed valde incequalis, uniserialis, e pilis seu
paleis subulatis, basi membranaceis. Flosculi disci tubulosi, lutei. Pappus pilosus, pilis
scabriusculis longitudine corolla. Ovarium sericeum. Receptaculum alveolato-punctatum,
nudum.
1. T. sericea. (T ab. CX IX). Aster? exscapus. Rich, in Frank!. ls£. Journ. ed. 2.
App. p. 32.
Hab. Carlton Honse upon the Saskatchawan. Dr. Richardson. Bare, upon the' dry banks of the Sas-
katchawan and among the Rocky Mountains. Drummond.—This highly interesting little plant, no less on
account of its habit than its pappus, deserves to be separated from Aster, of which, indeed, it was by Dr.
Richardson, considered a doubtful species. “ The bud is formed in the autumn,” and what Dr. Richardson
further observed in the living plant, I find to be characteristic of all the specimens in this Collection, that “ the
florets of the ray are mostly involute, rarely expanded, and always narrow, nearly of the same colour with the
pappus and inconspicuous; the flowers, indeed, never fully expanding.” I have named the Genus in compliment
to David Townsend, Esq. of West Chester, Pennsylvania, who having imbibed the most ardent love of
Botany from his friend and instructor Dr. Darlington of the same city, has devoted his leisure hours to the
science with eminent success. The plant now under consideration is peculiarly worthy of bearing his name,
because he has studied and ably discriminated the numerous Pennsylvanian species of the allied Genus .4ster.
Tab. CXIX.—Fig. 1, Flowers; fig. 2, Floret of the ray ; jig. 3, Portion of the pappus from the ray; Jig. 4,
Floret of the disk; Jig. 5, Portion of a hair from the pappus of the disk; Jig. 6, Stigma from the disk;
fig .l, 7, Scales of the involucre; Jig. 8:—all more or less magnified.
' 59. ERIGERON. L.
Flares $ pluriseriales in ambitu ligulati numerosi angusti; reliqui £ . Involucri foliola
imbricata angusta. Pappus conformis, uniserialis. Cor. $ regularis. Achenium erostre.
$f§-Herb® Furopa, Asiatica vel Americana, erecta, ramosa vel simplices, magis minusve hir-
suta; foliis alternis, inferioribus oblongo-obovatis, dentatis; capitulis albis vel purpureis soli-
tariis vel paniculatis. Nees.
1. E. compositus ; subacaulis, foliis radicalibus longe petiolatis tripartitis hirsutis laciniis
cuneiformibus trifidis, scapo unifloro paucifolio foliis linearibus integris.—Pursh, FI, Am.
v. 2. p. 535. Hook, in Linn. Trans, v. 14. p. 374. *. 13.—Cineraria Lewisii. Rich, in Frank!.
1st Journ. ed. 2. App. p. 32.—(3. grandiflorus; floribus.fere duplo majoribus, radiis magis
conspicuis.—y. radii flosculis carneis.
Hab. Banks of the Kooskoosky. M. Lewis.—a., and /3. Barren country between lat. 64° and the Arctic Sea,
and on the highest of the Rocky Mountains, in lat. 54°. Drummond. Islands of the Columbia, between the
Narrows and the great Falls. Douglas.—y. Summits of the Rocky Mountains. Drummond.
2. E. trifidus; subacaulis, foliis hirsutis radicalibus longe petiolatis trifidis laciniis integris
infimis solummodo raro iterum divisis, scapo unifloro paucifolio foliis linearibus integris.
(T ab. C X X .f'
Hab. Barren places among the Rocky Mountains. Drummond.—This has the flowers equal in size with
those of E. compositus, &., and the habit is very similar; but the leaves are almost the whole of them simply
trifid; a few of those at the base of the stem, or divisions of the stem, being compound.
Tab. CXX.—Fig. 1, Floret of the ray; Jig. 2, Floret of the disk; Jig. 3, Lent:—magnified.
3. E. lanatus; subacaulis lanatus, foliis radicalibus spathulatis infimis rarissime trifidis,
scapo subaphyllo superne involucroquedensissime lanatis, radiis elongatis patentibus, ache-
niisglabris. (Tab. C X X I.)
H ab. Summits of the Rocky Mountains between lat. 52° and 56°. Drummond.—This is an extremely
beautiful species, most allied, indeed, to E. uniflorus, but differing in the dense woolly covering, large flowers,
long descending root, and in the scape, rather than a stem, which bears the flower. Corollas of the ray white,
or rarely purple.
Tab. CXXI.—Fig. 1, Floret of the ray; fig. 2, Floret of the disk; fig. 3, Radical leaf; fig. 4. outermost
do.:—magnified.
4. E. radicatus; subacaulis, foliis radicalibus lineari-spathulatis hirsutulis subcarnosis,
scapo unifloro paucifolio, involucro lanato, radiis breviusculis patentibus. (Tab. CXX 11.)
Hab. Mountains near Jasper’s Lake, Rocky Mountains, rare. Drummond.
Tab. CXXII.—Fig. 1, Floret of the ray; fig. 2, Floret of the disk; fig. 3, Portion of a hair from the
pappus; fig. 4, 4, Leaves.
5. E. uniflorus; caule brevi, foliis radicalibus glabriiisculis spathulatis, caulinis paucis
linearibus superne Involucroque dense purpureo-lanatis, radiis erectiusculis involucro paullo
longioribus. Linn. Sp. P l.p. 1211. FI. Lapp.p. 250. t. 9.f . 3. (vix Engl. Bot. t. 2416.) Rich,
in Frankl. 1st Journ. ed. 2. App. p. 30.—E. alpinus. Pursh, FI. Am. v. 2. p. 532.
Hab. Labrador. Kohlmeister. Arctic Sea-shore (Dr. Richardson) and adjacent islands, Capt. Parry, Sabine,
&c. Summits of the Rocky Mountains, Drummond, who found one large specimen in the woody region with
seven stems from the same root.—This is well distinguished from the preceding by its more glabrous foliage,
true stem, the leaves gradually becoming smaller upon it, smaller flowers, and much shorter ray. The involucre
and its woolly clothing are, alike, generally purple. It is quite distinct from the E. uniflorus of Engl.
Bot. which I have reason to believe is only a single-flowered state of E. alpinus-, nor have I ever seen the
true uniflorusin Britain.
VOL. II.