Flora of Dominica, Part 2 - Smithsonian Institution Libraries

206 SCROPHULARIACEAE~~IROUBACEAE SMITHSONIAN CONTRIBUTIONS TO BOTANY
Leaves sessile, ovate to rotund, entire to occasionally
toothed; pedicels elongate; calyx deeply lobed, corolla with
bluish tube and lobes white with blue spots; stamens 2,
staminodes clavate.
Widely distributed in the Neotropics, according to Howard
(l.c.): in wet and disturbed places of Dominica: Cabrit swamp
(Ernst I1 74, Hodge 819, Whitefoord 4051), Clarke Hall in river
bed (Webster 13407), Freshwater Lake (Whitefoord 3865),
Goodwill waterfront (Ernst 1849), Pont Casse roadside
(DeFilipps 186), Sylvania (Hodge 818,1329).
During a visit (9 August 1990), Ms. D.Q. Lewis (Ames,
Iowa) dissected Sri Lankan material called L. rotundifolia and
concluded that its characters, especially that the staminodes
lack the distal segment, were identical with the New World
material called L. m’crocalyx.
Mecardonia Ruiz & Pavdn
Mecardonia procumbens
Mecardonia procwnbens (Miller) Small, 1903:1065, 1338.-D’Arcy,
1979:240.
Erinus procwnbens Miller, 1768.
Lindernia dianthera Swartz, 1788:92, nom. illeg.
Bacopa procwnbenr (Miller) Greenman, 1907:261.-Edwin, 1971:481.
Mecardonia dianthera PennelI, 1946:87.
Leaves ovate, serrate near apex, cuneate-obtuse at base;
pedicel base with bracteoles; calyx 5-parted, the outer 3 larger
than inner 2; corolla yellow.
Widespread weed; in wet areas of Dominica: Cabrit swamp
(Ernst 1928), Canefield (Ernst 1901, Whitefoord 4086).
Micranthemum Michaux, nom. cons.
Micranthemum umbrosum
Micranthemum wnbroswn (Gmelin) Blake, 1915:131.-D’Arcy. 1979:242.-
Stehle, 1962c:24.
[Anonym wnbrosa Walter, 1788:63, “wnbros[.],” nom. inval.]
Globifera wnbrosa Gmelin, 1791:32, “Umbros.”
Diminutive creeping herbs; leaves tiny, entire; pedicels
short; calyx deeply 4-parted; corolla 4-lobed; stamens 2; fruit _C
globose, exceeding the calyx.
Eastern North America to Argentina; in wet places of
Dominica: Soufriere (Lloyd 404).
Scopria dulcis Linnaeus, 1753:116.
Scoparia Linnaeus
Scoparia dulcis
Balier doux (sweet broom).
Leaves opposite to ternate, oblanceolate, cuneate, and entire
at base, coarsely serrate near apex; calyx deeply 4-parted;
flowers white.
Pantropical to subtropical; a common weed in Dominica:
Cabrit Swamp (Erst 1170, Carib Reserve (Hodge 3325),
Clarke Hall (Erst 1513), Grand Savanne (Wilbur 7660),
Hatton Gardens (Hodge 2938), Magua (Taylor 140), Marigot
(Hodge 820), Mt. Joy (Hodge 1262),Soufriere (Lloyd 412,
427), Sylvania (Hodge 821).
Plant used medicinally by the Caribs (Hodge and Taylor,
1957:606). Adjanohoun et al. (1985175, pl. 141) reported
several medicinal uses.
Stemodia Linnaeus, nom. cons.
Stemodia durantifolia (Linnaeus) Swartz was attributed to
Dominica by Britmn, according to V6lez (1957:113). Britton
(in Britton and Wilson, 1925, 6:184) cited “Antigua to
Trinidad.” No Dominican specimens of this taxon have been
seen. It is superficially similar to Capraria or Scoparia but the
leaves are auriculate and clasping at the base.
Stemodia verticillata
Stemodia verticillata (Miller) Hassler, 1909:l lO.-StehE. 1962c:25.-
D’Arcy, 1979:260.-Whitefoord 1989: 148.
Erinur verticillatus Miller, 1768.
Capraria hwnilis Aiton, 1789,2:354.
Stemodiaparviflora W.T. Aiton, 1812,452, nom. illeg.
Stemodiacra verticillata (Miller) Kuntze, 1891.2:466.
Lendneria hwnilir (Aiton) Mind, 1918:240.
Lendneria verticillafa (Miller) Britton in Britton & Wilson, 1925, 6:184.-
Adams, 1972663.
Prostrate herb; leaves serrate; flowers blue, axillary, shortly
pedicelled, calyx deeply 5-lobed, longer than rotund capsules;
stamens 4 (2 as long as style, 2 longer).
Neotropical weed, found on Dominica in wet, disturbed
places near houses: Sylvania (Hodge 815, mixed with
Lindernia crustacea), Syndicate hut (Whitefoord 5573).
SIMAROUBACEAE
Suriuna muritimu Linnaeus (sometimes placed in the
Surianaceae), a shrub with simple, linear leaves, was mentioned
by Hodge (1954:22) for Dominica as typical of upper beaches.
This is true on other islands, including Guadeloupe and
Martinique, but no collections have been seen from Dominica.
1. Leaflets opposite; carpels free but styles connate
.......................... Picrasma
1. Leaflets usually alternate; carpels fused or completely free.
2. Inflorescences and leaf rhachises pubescent; leaflets
usually 9 or less, attenuate at apex; stamens 5; ovary
unlobed, 2-3-locular ............ Picramnia
2. Inflorescences and leaf rhachisks glabrous; leaflets
usually 10 or more, obtuse at apex; stamens 10; ovary of
Simarouba
5 free carpels ................