Flora of Dominica, Part 2 - Smithsonian Institution Libraries

18 ACANTHACEAE-AMARANTHCEAE SMlTHSONIAN CONTRIBUTIONS TO BOTANY
2. Corolla 2-3 cm long ............ E fragrans
2. Corolla 5-8 cm long.
3. Leaves ovate to broad-ovate, 9-18 cm x 8-15 cm,
cordate or hastate at base, pubescent, coarsely toothed
or lobed below middle ........ T. grandflora
3. Leaves lanceolate to oblong-ovate, 10-13 cm x 4-5
cm, truncate at base, glabrous, entire or sometimes
obscurely repand and dentate. ..... T. laurifolia
Thunbergia alata
Thunbergio olato Bojer ex Sims. 1825 [Aug].-W.
177.-Linda~ in Urban, 1900,2:181.
Hooker, 1825 [Sep], 3, pl.
Pubescent twining vine; leaves ovate, cordate-hastate at
base; petioles winged; corolla 2-4 cm long, yellow or orange,
usually with a dark purple eye.
East Africa but now pantropically introduced and escaping;
common in Dominica along roadsides: Baiac (Whitefoord
3831), Glasham (Nicolson 2090), Hatton Garden (Hodge
2952), Laudat (Gillis 8189), Lisdara (Hodge 845), Pichelin
(Ernst 1618,1962), Ridgefield (Hodge 2131), Roseau (Cooper
135), Soufriere (Lloyd 478), South Chiltem (Stern & Wasshausen
2512), Springfield (Wasshausen & Ayensu 309, Sylvania
(Hodge 844), sine loc. (ad vias et in fruticetis Eggers 594 at
GH).
Ed. Note: It is evident that Sims provided the validating
description and accepted the name T alata Bojer that
accompanied the seeds, hence the name should be attributed to
Bojer ex Sims or simply to Sims, the publishing author, not to
Bojer.
Th u n bergia fragra ns
Thunbergiofragrons Roxburgh, 17%, 1:47, pl. 67.-Lindau in Urban, 1900,
2:180.
Finely pubescent vine; leaves ovate-lanceolate, hastate or
cordate at base, entire or remotely few-toothed toward base;
flowers axillary; bracts ovate-lanceolate; corolla white, 2-3 cm
long, lobes crenate, k equaling the tube; capsule depressedglobose,
tipped by a stout subulate beak.
Tropical Asia but now widely cultivated and escaping;
occasional in Dominica: Soufriere Village (Hodge 1626
“common on stone walls,” Lloyd 484), loc.? (Eggers 2926,
teste Lindau).
Thunbergia grandifora
Thunbergia grondifloro Roxburgh [1814:45, nom. nud.; Loddiges, 1820 [Jan],
nom. nud.. tab. sine analysis] in Ker, 1820 [Nov].-Roxburgh, 1832,3:34.
Flcmingio grandiflor0 Roxburgh ex Rottler. 1803:202.
Large vine; leaves ovate to broad-ovate, cordate to hastate at
base, often coarsely toothed or lobed below middle; corolla
white or light blue, campanulate, to 8 cm x 5 cm.
India but widely cultivated and escaping; occasional in
Dominica: Mome Cola Anglais (Webster 13412), Springfield
(Skog 1550).
Ed. Note: The nomenclature is still under consideration.
Recent authors attribute the combination to (Roxburgh ex
Rottler) Roxburgh or (Roxburgh ex Rottler) Roxburgh ex
Loddiges.
Thunbergia laurifolia
Thunbergio lourifolio Lindley. 1856.-W. Hacker, 1857.
Woody liana; leaves lanceolate to oblong-ovate, longacuminate,
truncate at base, glabrous, entire or sometimes
obscurely repand and dentate; corolla pale blue or blue with
whitish or yellow throat, campanulate, 5-6 cm x 4-6 cm.
Malaysia, introduced and escaping elsewhere; recently
collected in Dominica: above Laudat on road to Freshwater
Lake (Erst 1751).
AIZOACEAE
Sesuvium portulacastrum
Sesuvim portidocostrwn (Linnaeus) Linnaeus, 1759a:1058.-Howard, 1988,
4:198.
Portuhco portdocostrum Linnaeus, 175346.
Howard (1.c.) reported this from Dominica with an exclamation
mark (!), meaning that he has seen material. I have not.
Trianthema portulacastrum Linnaeus was cited for Dominica
by Vtlez (1957:72) but his material has not been seen.
AMARANTHACEAE
Gomphrena keys to Alternanthera but has a branched
stigma. Velez (1957:73) attributed introduced Gomphrena
globosa Linnaeus to Dominica.
Lithophila muscoides Swartz, with basal leaves and two
stamens, was attributed to Dominica by Velez (1957:74).
Philoxerus verm’cularis (Linnaeus) Smith, a fleshy herb of
saline soils, was attributed to Dominica by Velez (1957:74).
The current name is Blutaparon vermiculare (Linnaeus) Mears.
1. Leaves alternate.
2. Flowers unisexual: ovule solitary; fruit a 1-seeded
utricle ................... Amaranthus
2. Flowers bisexual; ovules 2 or more; fruit a 3-8-seeded
capsule ..................... Celosia
1. Leaves opposite.
3. Flowers in long spikes; anthers 2-celled, awned, fruits
deflexed.
4.
Bracts glabrous; sepals with straight spines .....
..................... Achyranthes
....................... Cyathula
4. Bracts pubescent; sepals with hooked spines
3. Flowers in capitate or paniculate clusters; anthers
1-celled, awnless; fruits not deflexed.