plants. The specimens we have examined are in the herbarium of Sir
Wm. Hooker.
47. APLOPAPPUS. Cass.; DC. prodr. 5. p. 345, excl. spec.
Heads many-flowered ; the ray-flowers numerous, ligulate, pistillate,
sometimes wanting ; those of the disk tubular, perfect. Seales of the involucre
lanceolate or linear, imbricated. Receptacle.flat, foveolate, or alveolate
and somewhat fimbrillate. Achenia silky, somewhat terete, oblong or
turbinate. Pappus of copious unequal and more or less rigid -scabrous bristles.—
Mostly perennial herbs or suffruticose plants (chiefly natives of the
Andes and the Pacific coast of America) ; with alternate usually serrate or
spinulose-toothed leaves. Heads solitary or somewhat corymbose. Flowers
yellow.
We have no species which entirely accord with the Chilian Euaplopappi. Some
of the Aplodisci are most nearly allied to them except that they have no rays ; but
the presence or absence of rays appears to be of minor consequence when the cap
tulaPare homochromous. Perhaps Pyrrocoma and Pnonopsis hardly deserve the
rank of genera, but it is more convenient to separate them.
§ 1. Scales of the hemispherical or campanulate involucre linear-lanceolate.
achenia obovoid-ollong or turbinate, silky-villous : pappus of copious and
very unequal but nearly capillary bristles : perennial or suffrutescent:
leaves pinnately lobed or incised ; the lobes or teeth pointed with bristles.
B lepharodon, DC. (excl. no. 9.)
1 A rubieinosus: suffruticose? branching from the base, viscidly pubescent
and cinereous; leaves lanceolate or narrowly oblong, mostly narrowed
at the ba«e sessile, laciniate-incised; the divaricate teeth produced into pellucid
bristles ; heads subglobose, solitary or corymbose, terminating the leafy
branches, often bracteate ; scales of the involucre linear, acute, viscidly pu-
berulent, in about 2 series, nearly equal, loose, at length spreading; achenia
turbinate, densely silky-villous; pappus bright reddish-brown.
Texas Drummond /—Stems erect or decumbent, corymbosely branched,
about 10 inches high. Heads rather smaller than m Chrysopsis Mariana,
on short stout peduncles. Rays 15-18, elongated. Scales of the mvo ucre
tipped with a bristle. Alveoli of the receptacle pilose-fimbnllate. Corolla of
thedisk-flowers dilated at the throat, rather deeply toothed. Appendages of
Ihe style oblong-ovate, broader and much shorter than the stigmatic portion.
Achenia silky-canescent. Bristles of the pappus lm about 3 series of unequal
length.—Allied apparently to A. phyllocepbalus, DC., of Mexico.
2. A . svinulosus (DC.) : herbaceous; xanescent with a soft minute woolly
nubescence, or at length almost glabrous; stems many from the same root,
corymbosely branched above; leaves (small) rigid, pmnately or somewhat
hininnately parted; the segments short, linear-subulate, mucronate with a
short bristle f heads subglobose, terminating the numerous branchlets, involu
c re shorter than the disk; the scales subulate-lanceolate, mucronulate,
imbricated in 3-4 series, appressed, canescent; achenia turbinate, villous,
-nnnnns fnale or tawny) very unequal.—DC. 1. c.—Amellus . spnnulosus,
VPursh 11 2. p. 564, (but the descr. does not perfectly accord); T o r r ..m
lVc New York, 2. v- 213. Starkea? pinnata, Nu tt.! gen. 2. p- 169.
Diplopappus pinnatifidusfHook. / fl. Bor.-Am. 2. p. 22. Dietena spinulosa,
Nutt. ! in trans. Amer. phil. soc. 1. c. p . 301. q,orn„ , 9
Plains of the Missouri to the Rocky Mountains! Aug.-Sept.—Stems 1-2
feet high. Leaves an inch or more in length. Heads small. Rays 20-30.
Corolla of the disk with very short teeth. Style nearly as in the preceding,
but the appendages as long as the stigmatic portion. Pappus short, rather
rigid, very unequal, in about 3 series.
§ 2. Scales of the hemispherical involucre lanceolate, more or less imbricated:
achenia oblong or turbinate, villous: pappus of unequal and strongly scabrous
but almost capillary bristles: stems low, scape-like, from a fusiform caudex,
bearing solitary or few rather large heads : leaves chiefly radical, petioled,
lanceolate, mostly with cartilaginous or spinulose teeth. Arniceela.
* Scales of the involucre lanceolate-oblong, chartaceous, unequal, imbricated in 3 series:
pappus shorter than the coroUa of the disk.
3. A . lanceolatus: stem and petioles at first lanuginous, at length nearly
glabrous; leaves coriaceous; the radical and lowest cauline lanceolate, acute,
irregularly spinulose-toothed, petioled ; the upper small and bract-like, linear-
lanceolate, partly clasping; heads 2-5; achenia silky.—Donia lanceolata,
Hook.! fl. Bor.-Am. 2. p. 25. Homopappus (Actinaphoria) multiflorus,
Nutt.', in brans. Amer. phil. soc. 1. c. p. 333.
Saskatchawan, Drummond! Plains both east and west of the Rocky
Mountains in about lat. 41°, Nuttall /—Plant from 6 to 24 inches high. Appendages
of the style lanceolate, about the length of the stigmatic portion.
Rays 20 to 25, pistillate, and to all appearance fertile.
* * Scales of the involucre linear-lanceolate, herbaceous, nearly equal, loose, in about 2
series: pappus not very copious, as long us the coroUa of the disk.
4. A. uniflorus: somewhat woolly when young, at length glabrous; leaves
rigid; the radical lanceolate, acute, sparingly and coarsely spinulose-toothed,
or some of them entire, petioled ; the cauline linear-lanceolate, partly clasping
; heads commonly solitary; involucre at length nearly glabrous ; achenia
silky-villous.—Donia uniflora, Hook.! fl. Bor.-Am. 2. p. 25,1.124. Homopappus
uniflorus, Nutt. 1. c.
Plains of the Saskatchawan and prairies of the Rocky Mountains, Drummond
/—Stems 5-10 inches high, from a thick caudex. Appendages of the
style oblong-lanceolate. Rays 25-30, fertile.
5. A . inuloides: tomentose-woolly throughout; the pubescence mostly
persistent; leaves lanceolate, acute, entire, or sparingly spinulose-serrulate;
the radical tapering to the base but nearly sessile ; heads usually solitary ;
involucre very woolly; achenia villous.—Homopappus (Actinaphoria) inuloides,
Nutt. | in trans. Amer. phil. soc. 1. c.
Moist grassy plains of the Rocky Mountains, towards the sources of the
Platte, Nuttall /—Plant 3-4 inches to a foot high. Rays 40-50, Nutt.—Appendages
of the style lanceolate-subulate. The rays are pistillate and apparently
fertile. The species is very nearly allied to the preceding, and perhaps
not distinct.
6. A. ? alpigenus : caudex thick, branched ; radical leaves narrowly spa-
tulate or oblanceolate, obtuse, entire, somewhat petioled, about 3-nerved,
glabrous; the cauline few and small, .linear, 1-nerved, slightly pubescent;
head solitary, terminating the short ascending scapiform stents; scales of the
involucre linear, rather acute, pubescent, loosely imbricated in a double
series; the exterior a little shorter; achenia oblong-linear, at length nearly
glabrous.
von. it.—31