Flora of Dominica, Part 2 - Smithsonian Institution Libraries

NUMBER 77 ACANTHACEAE 17
Antrim Valley (Nicolson 1873), Bataka (Stehle 64OI), Cabrits
(Smith 10307, Webster 13298), Carib Reserve (Taylor 154),
Deux Branches (Ernst 1970), Hampstead (Lloyd 656), La
Chaudiere (Hodge 3656), Layou River Valley (Ernst 1435,
1547, Stern & Wasshuusen 2387, Webster 13162), Lisdara
(Cooper 45, 151, Hodge 851, 2388). Magua (Stehle 6340),
Melville Hall (Hodge 848, 849), Mero (Ernst 1764), Milton
(Hodge 2580), Morne Cola Anglais (Webster 13421), Mt. Joy
(Hodge 1288), Pagua Bay (Chambers 2628), Petit Coulibri
(Whitefoord 4663, Petite Soufiibre Bay (Stern & Wasshuusen
2743, Pointe Ronde (Hodge 2661), Ridgefield (Hodge 2146),
Roseau Valley (Howard 11743, Salybia (Hodge 3184),
Soufrikre (Lloyd 462), South Chiltern (Hodge 1453), Sylvania
(Beard 637, Hodge 850, 1250), Syndicate (Whitefoord 3525),
Vieille Case (Beard I472), Wallhouse (Eggers s.n. at GH),
Wooten Waven (Eggers 599, sine loc. (Cooky 8766).
Pachystachys Nees
Pachystachys spicata
Pachystachys spicata (Ruiz & Pavon) Wasshausen, 1986:175.
Jusficia spicata Ruiz & Pavon, 1798b, 1:s.
Pachystachys riedeliana Nees in Martius, 1847 [Jm], 99; in A.P. Candolle,
1847 [Nw], 11:319.
Pachystachys coccinea sensu auca., non (Aublet) Nees.-Lindau in Urban,
1900,2:213.-Hodge & Taylor, 1957:609.
C handeliere.
Suffrutescent herb to 3 m; leaves broadly elliptic to obovate,
11-20 cm x 5-12 cm; spikes solitary, 6-15 cm; bracts green,
loosely imbricate, 1.5-2.5 cm x 0.7-1.1 cm; calyx campanulate,
segments narrowly triangular, corolla scarlet to reddish
orange, ringent, slenderly obconic, 5-6 cm long; stamens 2,
anthers deeply sagittate; staminodes rudimentary; capsules
2-seeded.
Amazonian South America and cultivated elsewhere; naturalized
in Dominica and locally common in shade: Carib
Reserve (Hodge 3303, Grand Bay road (Eggers 641, Ernst
1591, Nicolson 2172, Wilbur 8027), Lisdara (Hodge 2326),
Morne Plat Pays road (Gillis 8118), Portsmouth (Hodge 843,
Salybia (Hodge 846).
Tea used by Caribs to treat headaches (Hodge and Taylor,
1957:609).
True Pachystachys coccinea (Aublet) Nees, a name often
misapplied to this species, has a very different calyx.
Ruellia Plumier ex Linnaeus
Ruellia coccinea (Linnaeus) Vahl was reported for Dominica
(based on an Imray collection) by Lindau (in Urban, 1900,
2197), confirming the same collection reported by Grisebach
(1 862:452, as Stemonacanthus coccineus (Linnaeus) Grisebach).
The species is regularly found in Hispaniola, Puerto
Rico, and the Virgin Islands but the records from farther south
(Guadeloupe and Dominica) may not be from the wild.
Ruellia tuberosa
Ruellia tuberara Linnaeus, 1753:635.-Grisebach, 1862:452.-Lindau
Urban, 1900.2:191.
Ruellia picta Loddiges, 1829.
Roots thick-fibrous or fusiform; erect herb, usually
branched, leaves ovate-oblong, obtuse, abruptly narrowed at
base into short petiole; flowers l-several in f erect dichotomous
cymes; corolla showy, mauve, 3-6 cm long, limb 2-4
cm broad, lobes k orbicular, 12-15 mm wide; stamens 4,
didynamous; capsules cylindric, with 20-more seeds per locule.
Neotropics; occasional in Dominica in open places: Grand
Bay (Wilbur 7906), Marigot Bay (Ernst 1678).
Adjanohoun et al. (1985:37, pl. 3) reported medicinal usages
of infusions.
Telwstachya Nees
Telwstachya alopecuroidea
Teliartachya alopecwoidea (Vahl) Nees in Martius, 1847,9:72.
Ruellia alopecwoidea Vahl, 1798, Eclog. 249.
Lpidagathir alopecwoidea (Vahl) R. Brown ex Grisebach, 1862:453.-
Lindau in Urban, 1900,2:200.
Much-branched perennial herb to 50 cm; leaves ovateelliptic,
2-6 cm x 1.5-2.5 cm; flowers in many-flowered
terminal spikes; bracts lanceolate-oblong, -6 mm long; corolla
white or lavender, 5-6 mm long; stamens 4, free at base, anther
sacs parallel; capsule sessile, 4-seeded.
Northern South America, extending into Central America
and Antilles; abundant in shade in Dominica: Carib Reserve
(Hodge 3229), Clarke Hall (Chambers 2698, Nicolson 2004),
Harris Soulton Estate (Webster 13390), La Chaudiere (Hodge
3611,3689), Laudat (Hodge 1984, 2050, Lloyd 221), Lisdara
(Hodge 841, 2364), Marigot (Hodge 840), Milton Estate
(Hodge 2565), Rosehill (Eggers 89l), Salisbury (Stern &
Wasshausen 2594). South Chiltern (Ernst 1303, Hodge 1445,
Stern & Wasshausen 2494), Sylvania (Hodge 842, 843),
Syndicate (Whitefoord 3547).
Caribs use tea to calm frightened children (Hodge and
Taylor, 1957:609).
Thunbergia Retzius, nom. cons.
Thunbergia erecta (Bentham) T Anderson, the bush
clock-vine, a suberect shrub, has been collected in the Roseau
Botanic Garden (Hodge 969).
1. Petioles winged; corolla yellow or orange, usually with a
dark purple eye. . . . . . . . . . . . . . . . . . T alata
1. Petioles not winged; corolla white to blue with a whitish or
yellowish throat.
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