Flora of Dominica, Part 2 - Smithsonian Institution Libraries

NUMBER 77 MALVACFAE-MARCGRAVLACEAE 143
crateriform, k entire; petals yellow, cream or reddish, with a
dark base, black-punctate; fruit 3-4.5 cm in diameter.
Pantropical; in Dominica a dominant of coastal strand
vegetation: Cabrit Swamp (Hodge 544, Nicolson 1886, Wilbur
8257), L’Anse Noire (Ernst 1827), Pointe Ronde (Hodge
2693).
Urena Linnaeus
Easily recognized by the hooked spines on the fruits (like
Triutnfetta of the Tiliaceae).
1. Sinuses of leaf blades shallow, angular at base ......
.......................... U. lobata
1.
Sinuses of leaf blades deep, rounded at base .......
......................... U. sinuata
Urena lobata
Urem Ioboto Linnaeus, 1753:692.-Borssum
loboto].
Waalkes, 1966:140 [as var.
Shrub with shallowly lobed leaves; epicalyx cupular, stiff
and appressed to mericarps.
Pantropic weed; known in Dominica only from dry
northwest comer of the island: Pointe Ronde (Hodge 2765),
Portsmouth (Whitefoord 5295).
Urena sinuata
Urem sinuato Linnaeus, 1753:692.
Urem swortzii A.P. Candolle, 1824, 1 :442.
Ureno loboto f. sinuoso Miquel, 1854:283.
Urem loboto var. swortzii (A.P. Candolle) Grisebach, 1859:81.
Urem Ioboto var. sinuato (Linnaeus) Miquel ex Kuntze, 1891. 1:74.-
Hochreutiner, 1901 :141.
Ureno Iobota subsp. sinuato (Linnaeus) Borssum Waalkes, 1966:142.
Mahoe cousin, materebe (Carib, without food).
Shrub with deeply lobed leaves; epicalyx spreading or
reflexed in fruit.
Pantropic weed; occasional in Dominica in lowland and
midland disturbed areas: Bellevue (Eggers 599), Carib Reserve
(Stehle 6100), Hatton Garden (Hodge 2955, 3041), La
Chaudiere (Hodge 3692), Milton (Hodge 2927), Sylvania
(Cooper 71, Hodge 1105), Wallhouse (Eggers s.n., Nov 1887),
sine loc. (Imray m., Taylor I).
Used medicinally by Caribs (Hodge and Taylor, 1957581).
Wercklea Pittier & Standley
Wercklea tulipiflora
Werckleo tulipflora (I.Hooker) Flyxell. 1981:476.-Fryxell in Howard, 1989,
5:260.
Hibkcus tulipiflorw J. Hooker, 1845, “tulipefrorus.”
Gomb montagne, gombo marmn.
Tree to 13 m; leaves large, cordate, coarsely toothed; flowers
yellow, pendent; capsule erect.
Lesser Antilles (Montserrat to St. Lucia); in places common
on Dominica, 450-800 m: Freshwater Lake vicinity (Beard
235, Hodge 1127, 1879, Nicolson 1957, 4146, Smith 10234,
Wusshausen & Ayensu 311, Whitefoord 3863), summit of
Mome Negres Marrons (Hodge 1079), Sylvania (Hodge 549),
sine loc. (Cooper 40, Imray 251, the type).
MARCCRAVIACEAE
(by John Utley)
Inflorescence f umbellate; leaves dimorphic, distichous,
acute on fertile branches; central flowers aborted, each
with a pitcher-shaped nectary (“bract”) long-decurrent on
pedicel; fertile flowers with calyptrate corolla . .....
......................... Marcgravia
Inflorescence racemose, elongated; leaves monomorphic,
spiralled, obtuse to retuse; flowers all fertile, each with a
ladle-shaped nectary attached to pedicel; corolla lobes free
(at least apically).
2. Raceme axis to 20 cm long; pedicels to 0.5 cm, scarcely
longer than flowers: nectary inserted at flower base;
stamens 5 ................... Ruyschia
2. Raceme axis to 10 cm long; pedicels to 4 cm, much
longer than flowers; nectary inserted below mid-pedicel;
stamens 20 ................. Schwartzia
Marcgravia Linnaeus
1. Inflorescences erect; flowers erect on pedicels; stamens
-60. ..................... M. trinitatis
1. Inflorescences pendulous; flowers angled on pedicels;
stamens to 20.
2. Flowers at oblique angle on 2 cm pedicel, buds acute;
leaves leathery, 6-10 cm long: nectary apices of central
abortive flowers extending -5 mm beyond pedicel
apices ................... M. lineolata
2. Flowers at almost right angle on 3 cm pedicel, buds
rounded; leaves not leathery, 10-13 cm long; nectary
apices of central abortive flowers equaling or slightly
below than pedicel apices . ....... M. umbellata
Marcgravia lineolata
hforcgrovio lineolato Krug & urban in urban, 18%:517.
Leaves leathery, with inconspicuous venation; leaf glands
slightly inset (3-5 mm); lower third of midrib with 4-5
domatia on each side; petioles 4-5 mrn long; flowers at 45”
angle on -2 cm pedicels; stamens 8.
Martinique and St. Lucia; apparently rare in interior forests
of Dominica: 5 miles [8 km] east of Pont Casse (Nicolson 41 78,
Wilbur 7830), Syndicate (Ernst 2065, Whitefoord 3491, 4268,