Flora of Dominica, Part 2 - Smithsonian Institution Libraries

44 ASTERACEAE SMITHSONIAN CONTRIBUTIONS TO BOTANY
Cacalia porophyllwn Linnaeus, 1753:834.
Kleinia rldoralis Jacquin, 1760:28.
Porophyllwn ellipticwn Cassini in Cuvier, 1826, 4356 [based on Cacalia
porophyllwn Linnaeus. 1753].--Danin, 193Od:80.--Stehl6,1963: 183.
Annual herbs; leaves alternate, entire, elliptic to oblong, thin,
to 6 cm x 2.5 cm on thin petioles; heads solitary, on long
peduncles that are swollen towards apex; involucral bracts 5, in
a single series, linear, -2 cm long; receptacle naked, small;
florets green, purple-tinged at tip, all tubular, bisexual, with a
thin, elongate tube and a short limb; achenes dark, linear, to 1
cm long, with conspicuous light tan pappus of capillary
bristles.
Weed from southern US to Argentina; rarely collected on
Dominica: Baiac (Whitefoord 5465) Eggers collection reported
by Urban (1899, 1:467) and Imray and Domin
collections reported by Domin (193Ock80)].
Pseudelephantopus Rohr, nom. et orth. cons.
Pseudelephantopus spicatus
Pseua'elephantopus spicatus (Aublet) C.F. Baker, 1902:45.-Nicolson.
1981a:492.
Elephantopus spicatus Jussieu ex Aublet, 1775:808.40nts & McDaniels in
North her. Fl., ser. 2, 1978, 10:199.
Dirtrephus spicatus (Aublet) Cassini in Cuvier, 1819, 13:367.--Domin,
193Od:62.
Erect perennial herb to 1 m; leaves alternate, lower
oblanceolate, upper smaller and linear; glomerules 1-4-headed
with 2-4 florets per head; achenes 10-ribbed, pappus with
longer bristly hairs double-bent.
Neoaopical weed now pantropical; common on Dominica in
disturbed places: Clarke Hall (Chambers 2633, Fort Shirley of
West Cabrit (Whitefoord 3978), Grand Bay road (Ernst 1593,
Mt. Joy (Hodge 1277), South Chiltern (Hodge 1532). Trafalgar
Falls road (Hodge 2014, Whitefoord 4581).
Rolandra Rottb~ll
RoIandra frutkosa
Rolandrafruficasa (Linnaeus) Kuntze, 1891,1:360.--Domin, 193M62.
Echinopsfruficasus Linnaeus, 1753:815.
Rolandra argentea Rottboll. 1775258.
TCte negresse.
Virgate, stiff perennial herb; leaves alternate, entire, ellipticlanceolate,
dark green above, white-tomentose beneath; inflorescence
compounded of 1-flowered heads that are glomerate
in sessile clusters subtended by a leaf; involucre of 2 bracts,
outer larger than inner and aristate; florets all tubular,
3-4-toothed; achenes angled, truncate, crowned with a lacerate
pappus, shed in the 2 clasping involucral bracts.
Northern South America to Honduras and Puerto Rico;
occasional in Dominica in moist, disturbed areas: Carib
Reserve (Hodge 3278), Clarke Hall (Chambers 2750), La
Chaudi6re (Hodge 3628), Layou River Valley (Ernst 1508),
Lisdara (Hodge 2422), Morne Plaisance (Whitefoord 4508),
near Newhall [?I (Eggers 516), Providence Valley (Hodge
2039), Riversdale (Proctor 25792), South Chiltern (Hodge
1483).
Root infusion used by Caribs for medicine (Hodge and
Taylor, 1957:616), Adjanohoun et al. (198589, pl. 56) reported
use of leaf infusion.
Senecw Linnaeus
Senecw lucidus
Senecw lucidus (Swartz) A.P. Candolle, 1838, 6411.--Domin,
Stehl6, 1%3:188.
Cineraria lucida Swsrtz, 1806:1360.
193M83.-
Large herbaceous shrub to 3 m, often reclining on other
vegetation, stems strongly ridged, leaves alternate, fleshy,
elliptic to lanceolate, denticulate; inflorescence much
branched, terminal; involucre 1-seriate; receptacle flat, naked,
florets yellow to orange, marginal florets ligulate, female and
disk florets bisexual and tubular; achenes elongate, pappus of
many silky bristles.
Guadeloupe to Martinique; at higher elevations of Dominica,
reported as common around Freshwater Lake: Freshwater Lake
area (Chambers 2552, Eggers 680, Ernst 1103, Hodge 1871,
King 6379, Smith 10244, Whitefoord 4179, 5152), Mome
Anglais (Fennah 23), Valley of Desolation (Hodge 1943).
A Trinidad record is probably a Sieber labeling error, as
noted by Stehle (1%3:189).
Sonchus Linnaeus
(by K. Chambers)
Sonchus oleraceus
Sonchus oleraceus Linnaeus, 1753:794.-Bodos, 1973:155.
Sow-thistle.
Stout, hollow-stemmed annual herbs to 1 m, sap milky;
leaves alternate, lower lyrate-pinnatifid with a broad terminal
lobe, acutely dentate, upper auriculateclasping; involucral
bracts in several series, outer smallest; receptacle flat, naked;
florets pale yellow, all ligulate and 5-toothed, achenes
flattened, rugulose and grooved, with pappus of capillary hairs.
Cosmopolitan weed, especially in temperate regions; new
record for Dominica: En Haut Jean (Whitefoord5423), north of
Grand Savanne (Wilbur 8118), Tee Morne (King 6325).
Struchium Browne
Struchium spargan ophorum
Struchiwn sparganophorum (Limaeus) Kuntze, 1891,1:366.
Ethdia sparganophora Linnaeus, 1763:1171.