Flora of Dominica, Part 2 - Smithsonian Institution Libraries

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LAuRACEAFl-LENTmlL4RIAaAE
SMITHSONIAN CONTRIBUTIONS TO BOTANY
(Ernst 1036), Freshwater Lake (Erst 2160, Wasshausen &
Ayensu 320), Lisdara (Cooper 169), Morne Anglais (Hodge
2248), Pont Casse (Stern & Wasshausen 2544), Sylvania
(Hodge 402. Flowering July-August, fruiting March-May.
Grisebach (1860:282) misidentified material of this species
from Dominica as N. leucantha var. rodiaei (Schomburgk)
Grisebach, according to Mez (1889:450), who puts the
basionym under Ocotea rodiuei (Schomburgk) Mez.
Ocotea patens
Ocoteo patens (Swartz) Nees, 1833a:lO.-Howard, 1988,4269.
hwur potens Swartz, 1788:65.
Nectondro potens (Swartz) Grisebach, 1860:281.
Leaves glabrous except for tufts (domatia) in vein axils
below; venation prominent, coarsely reticulate on both surfaces;
panicles branched from base, puberulous; cupules
shallow, red; berry oblong-ellipsoid, 2-2.5 cm long, black
[description from Howard, l.c.1.
Antilles; reported for Dominica by Howard (1.c.) with
exclamation mark but I have not seen the Dominican
specimens.
Persea Miller, nom. cons.
Flowers bisexual; tepals lanceolate (equal in R americana
and inner distinctly longer in P. urbaniana); stamens 9,
quadrilocular (sometimes inner 3 bilocular in P. urbaniana),
filaments elongate, locules paired, staminodia 3 (inside the
stamens); fruit with accrescent pedicel and persistent tepals.
The avocado or z’aboca, Persea americana Miller of Central
America, is cultivated in Dominica in the Carib Reserve,
Lisdara (Hodge 2420) and Petit Macoucheri (Whitefoord
6033). It is a large tree with large, edible fruits. The fruit is
pear-shaped, the tepals are all equal, and all anthers are
4-locular. Adjanohoun et al. (1985:129, pl. 95) reported
medicinal uses on Dominica.
Persea urbaniana
Perseo wbonim Mez, 1889:143.-Kcpp, 1966:90.-Little et al., 1974:210,
pl. 339.
Perseo globerrha Mez, 1889:144.
Laurier muscat.
Tree to 7 m; petals twice the length of the sepals; inner
(third) series of anthers sometimes 2-locular; fruit globose,
small.
Jamaica, Puerto Rico, Montserrat to St. Lucia; in Dominica
without locality (Zmray 133 at K).
LECYTHIDACEAE
The following introduced trees have been collected or
observed in the Roseau Botanic Garden and environs:
Barringtonia asiatica (Linnaeus) Kurz, a native of Asia with
large, white flowers with four petals and many, long-exserted
stamens.
Couroupita guianensis Aublet, the cannonball tree, noted for
its curious reddish flowers and spherical cannonball-like fruits
borne on the trunk (Hodge 903).
Gustavia augusta Linnaeus of northern South America with
axillary white flowers (Hodge 3935).
Napoleonaea imperialis Palisot de Beauvois (incl. Napoleonaeu
m’ersii J. Hooker) of West Africa with large, variegated
leaves and large, apetalous flowers 3-4 cm across with a
70-radiate, tricolored pseudocorolla and 40-fid, white central
corona (Hodge 3906).
LENTIBULARIACEAE
(by R. DeFilipps)
Utricularia gibba Linnaeus (cf. Fernandez-Perez, 1964:69),
another yellow-flowered species but with dissected “leaves,” is
reported from Guadeloupe and Martinique, but has not been
collected on Dominica, presumably because it grows in quiet
water, rare in Dominica.
Grisebach (1860: 162) reported Utricularia amethystina
Salzmann ex’ St. Hilaire 62 Girard for Dominica, based on an
Imray collection. I have not seen the specimen, but it is almost
certain that it cannot be this species. According to Peter Taylor
(pers. comm.) U. amethystina does not occur north of Trinidad.
It could be Utricularia jamesoniana Oliver, known from
Guadeloupe and Martinique, which, like U. alpina, is epiphytic
(growing in moss), but very small and with a long spur, longer
than the 3-lobed lip.
1.
1.
“Leaves” to 20 cm x 3 cm; pedicels 2-3 cm long; flowers
white, 3-5 cm in diameter, spur to 3 cm long ......
.......................... U. alpina
“Leaves” to 8 mm x 1.5 mm; pedicels to 6 mm long;
flowers yellow, to 6 mm in diameter, spur 2 mm long
.......................... U. pusilla
Utricularia alpina
Utriculario olpino Jacquin, 1760: 11.-Femhaez-Pbrez, 1961:28.
Utricularia mantano Jacquin, 1763:7, pl. 6.
OrchyNiwn olpinwn (Jacquin) Barnhart, 191653.
Epiphytic, scapose herb to 40 cm; rhizoids bearing translucent
pseudobulbs to 2 cm in diameter and utricles 1 mm in
diameter; “leaves” elliptic, spatulate or oblanceolate; bracts
basifixed; flowers white, tinged with yellow and lavender;
capsule globoid, 1.3 cm long.
Central America, northwestern South America, Lesser
Antilles; in Dominica on moist banks or epiphytic in
rainforests, 425-1200 m: Dleau Gommier (Ernst 1183),
Freshwater Lake area (Eggers s.n., Hodge 1844, Wasshausen &
Ayensu 323, Webster 13264, Wilbur 7410), Morne Anglais