bly be applied to the peduncles, instead of the involucre. There is already
an Engeron hispidum of De Candolle (in Wight, contrib. lot. Ind., b DC.
Prodr.); but we have left the name of Mr. Nuttall’s species unchanged:
nnH ^ ^ C,nUSe that of De Candolle will perhaps be removed from the genus;
speciosum y ’ ^ 866 D° adeAuate dlst;netion between this plant and E.
J?®-, E ' occi?ent“le (Natt- ) : hisPid with a short pubescence ; corymb com-
pound, irregular; lower leaves oblong-lanceolate, obtuse, subserrulate; upper
linear, entire, scales of the involucre lanceolate, acute, scarcely hirsute; rays
tW? nvm» r0US; red; T nei paPPus of about 12 bristles imct. l\u tt. in trans. Amer. phil. soc. (n. 56?*.) p. 311. ! the outer very dis-
. : : ° r , r - - Al0WP,Pre“ ial broadish leaves on the lower
part of the stem. Allied to E. stngosum, but scarcely the same, with red
flowers and broad leaves.” Nuttall. -
40. E . foliosum (Nutt.): rather hirsute and somewhat scabrous; stem
impie, erect, terete, attenuated, the summit corymbose; leaves oblong-
lmear, sessile, acute, crowded; scales of the involucre lanceolate, pubescent,
acute, in about 2 series, nearly equal; rays short, red, about 30; achenia
somewhat hirsute. Nutt, in trans. Amer. phil. soc. (n. ser.) 7. p. 309
the s r n m t T f iw T * ’’ * * * * * M a / _ « A v e V remVrkfble species;
2hHne« fuU°1f. eaveS’. one ??d a half t0 two inches long, and about
do, b?p -Th ’ dllnimsblnS )n with the attenuation of the stem. Pappus
double, the outer small, the inner of many brownish rays. Stigma exserted
nubescenfd n®arly.ecluai1y Aliform in the ray; obliquely truncate and slightly
pubescent in the discal florets. Rays narrow, about the length of the invo-
iucrum [that is exserted to about that length], of a full purole red. This
speaes appears to be considerably allied to Corethrogyne, but has the
achemum of Engeron, somewhat prismatic, with 3 or 4 longitudinal brown
TO// °f w T ’ bUt the °btUle stl?ma aPPears to be an anomaly in the genus.”
N u tt.-W e have not seen this plant, which, in addition, is said to resemble
an Aster m aspect, and to have been described from immature specimens.
Eri eron endageS °f ^ (stigmas) are, we believe, always obtuse in
& cF im EM ’ h y fou" ded on the Virga-aurea Caroliniana,
yflow-flowered plant, which no botanist has succeeded
in identifying It has nothing m common with the Phalacroloma obtusifo-
| P | C ^ h r c h is Engeron stngosum), nor with the Erigeron hyssopifolium
Mzchx. (which is Aster gmmimfolius). This confusion commenced Adth Pursh’
Who erroneously adduced the figure of Dillenius and the E. Carolinianum as svno’
nyms of the E. hyssopifolium of Michaux. as syno
E bngifoliumYDesf. & Pers.) is pretty clearly not of this genus, and in all probability
not a North American plant. Pursh adds the marl v. s. but we find no
specimen in Mr. Lambert s herbarium. In the list of excluded species, ^C an d o lle
elsewtemmrwkh r f i ^ b u t we find no such species described, nor have we
E . retroflexum (Poir.), a very imperfectly characterized species, is said to have
extremely narrow linear glabrous leaves, and a short, imbricated, and very glabrous
involucre. Perhaps it is Chrysopsis pinifolia, EU. y s
28. DIPLOPAPPUS. Ca ss, in bull, philorn. 1817, f in d ie t. 13. p. 308.
Diplostephium, Kunth.—Diplopappus & Diplostephium. Cass (diet 371 n r
^ S p T r t f y 1 ' & 2- ) - DiP1^ P bi- & Drellingeria, in j j g S - ^ r y &so?sS
Heads many-flowered; the ray-flowers 8-12, or rarely more numerous
in a single series; those of the disk tubular, perfect. Scales of the involucre
imbricated, lanceolate or subulate, 1-nerved or carinate, destitute of herbaceous
or squarrose tips. Receptacle flat, somewhat alveolate; the alveoli
toothed. Appendages of the style subulate ór lanceolate, rarely short. Achenia
more or less compressed. Pappus double; the exterior of copious scabrous
often unequal capillary bristles, as long as the corolla; the exterior
very short, setulose, or setaceous-subulate.—Perennial (chiefly American)
herbs or suffruticose plants, somewhat variable in habit; with alternate mostly
entire and sessile leaves. Heads corymbose, or terminating the simple
branches. Rays blue, purple, or white; the corolla of the disk yellow, rarely
changing to purplish.
The name Diplostephium appertains to the section which comprises the original
species, D. lavandulffifolium, Kunth ; which appears to differ considerably and perhaps
generically from the Eudiplostephium of De Candolle, and is perhaps much
nearer the Diplopappus § Amelloidei of the latter author—In a note under Aster § Or-
thomeris, we have already observed that some, if not all of the species of De Candolle’s
Diplopappus § Calimeridei, with the Aster peduncularis, Wall. (Amphiraphis
peduncularis, DC.), the Calimeris flexuosa, Lindl. &c. (all natives of the mountains
of India), appear to form a well-marked genus.
§ 1 . Bristles of the inner pappus similar, not clavellate or thickened at the
apex; the exterior setulose: achenia villous or silky, short, somewhat compressed
: involucre about the length o f the d isk : leaves crowded, linear,
rigid, 1-nerved, mucrohulate, with serrulate-ciliate very scabrous margins :
heads terminating the simple branches : rays violet.—Ian t h e . (Diplostephium
§ Amelloidea, Nees. Diplopappus § Amelloidei, DC.)
1 . D. linariifolius (Hook.): stems strict, puberulent or slightly scabrous
usually several from the same root or suffrutescent base ; leaves rigid, mostly
spreading, linear, mucronulate, strongly 1 -nerved, glabrous, with very scabrous
serrulate-ciliate margins; scales of the turbinate-campanulate involucre
imbricated m several_ series, rigid, carinately 1-nerved, at length somewhat
spreading; the exterior short, lanceolate-subulate; the innermost linear
mostly obtuse; exterior pappus copious, setaceous; achenia narrow silkv’
villous. Hook,. ! ft. Bor.-Am. 2. p. 21 ; Darlingt. ! M Cest. p. 473 f)
linamfolius & D. rigidus, Lindl.! in DC. prodr. 5. p. 277. Diplostephium
linariifolium, Nees, Ast. p. 199. Chrysopsis linariifolia, Nu tt.! gen. 2 v
152. Aster linariifolius, Linn. ! spec. 2. p. 874; Michx.! ill 2. p. l io -
Pursh, fl. 2. p. 545; Ell. ! sk. 2. p. 365. A. rigidus, Linn. 1. c. (fide nl
Gronov !); M w h x .fi. c .; Pursh!'fl. 2. p. 544. (excl. syn. A. J in o ï ills’
Willd.) A. pulchernmus, Lodd. bot. cab. 1 . t. 6. A. Americans frutesl
■cens, &c. Pluk. aim. t. 1 4,/. 7. .
Dry soil, throughout thé United States! also in Canada' and New
foundland, Mr. Carmack ! (in herb. Hook.) Sept.-Oct.—Stems 8-20 inches
high, simple and terminated by a single head; or with few or numerous
simple, leafy, corymbose, clustered, or somewhat racemose branches Leaves
near the root short and scale-like, appressed, obtuse, 1- 3-nerved, rigidly cili-
ate; the other cauline ones about an inch long, very numerous mostlv
spreading or recurved, shining above, pale and with the midrib prominent
beneath, veinless; those of the somewhat hoary branches much smaller
the uppermost subulate. Heads rather large; the numerous scales of thé
involucre somewhat ciliate; the inner often with purplish tips. Rays 10 12
elongated, showy. Appendages of the style attenuate-subulate, hairy —We
know not how the D. rigidus, Lindl. fc . is to be distinguished, even as a