Flora of Dominica, Part 2 - Smithsonian Institution Libraries

120 HIPPOCRATEACEAE-LAMIACRAE SMlTHSONIAN CONTRIBUTIONS TO BOTANY
Pristimera Miers
Pristimera caribaea
Pristimera caribaea (Urban) A.C. Smith, 1940:378.
Hippocratur cnribaur Urban, 1909,655.
Hippocratur volubilis var. caribaca (Urban) Stehle & Quentin in Stehld et al.,
1937, im.
Petals not barbellate; seed wings thickened.
Hispaniola, Puerto Rico, Antigua, Guadeloupe; collected
(sterile) on top of dry West Cabrit (Nicolson 4205).
This species was reported from Dominica (Duss sen.) “in
littoralibus”) in the original description of the species. The
locality suggests H. volubilis. The specimen (B) is presumed
destroyed.
Robinson and Smith (in Reitz, 1971:4) separated genera of
this family on microscopic epidermal characters, including
Hippocratea (without idioblasts) and Pristimera (with idioblasts
containing angular, plate-like crystals). Dr. Robinson
kindly confirmed that the sterile specimen cited above is
Pristimera.
HYDROPHYLLACEAE
Hydrolea spinosa
Hyirolea spinasa h aws, 1762:328.
Erect, glandular-pilose herb with alternate leaves and
axillary spines; flowers corymbose, blue.
Neotropics; found in Dominica creeping in sunny swamp:
Antrim (Hodge 2503).
Cited for Dominica by Grisebach (1862477) but no
specimens located at Kew. The usual Antillean distribution is
Jamaica and Cuba. Material from Antrim often involves
introduced species. The status of this in Dominica is uncertain,
possibly an escape.
LAMIACEA~LABIATAE
(by A.C. Nicolson)
Mentha x piperata Linnaeus (peppermint), Mentha x
piperata var. citruta (J.H. Ehrhart) Briquet (bergamot mint),
Mentha pulegium Linnaeus (pennyroyal), and Mentha spicata
Linnaeus (spearmint) were reported to have medicinal usages
on Dominica by Adjanohoun et al. (1985:117-119, pls.
83-86).
Origanum majorunu Linnaeus (marjoram) was reported as
having medicinal uses on Dominica by Adjanohoun et al.
(1985:123, pl. 90).
Orthosiphon uristatus (Blume) Miquel, including Orthosiphon
spicatus (Thunberg) Backer et al., non Bentham, was
introduced fiom Indonesia and is cultivated. It has a bilabiate
calyx with 4 lobes below and 1 entire lobe above and the
stamens are long-exserted (to 5 cm), whence the name “cat’s
whiskers”: Clarke Hall (Fosberg 48309, Nicolson 1820).
Plectranthus amboinicus (Loureiro) Sprengel, a tomentose
species, was reported by Adjanohoun et al. (1985125, pl. 91)
as having medicinal uses on Dominica; it is also known as
Coleus amboinicus Loureiro.
Variegated and commonly cultivated Plectranthus scutellarioides
(Linnaeus) R. Brown (also known as Solenostemon
scutellurioides (Linnaeus) Codd) has been seen as Coleus
blumei Bentham.
Plectranthus verticillatus (Linnaeus f.) Druce (incl. Plectranthus
thunbergii Bentham) has been collected in cultivation
at Baiac (Whitefoord 4222).
Pogostemon heyneanus Bentham (patchouli) was reported
by Adjanohoun et al. (1985:125, pl. 125) to have medicinal
uses on Dominica.
Thymus vulgaris Linnaeus (thyme) was reported by Adjanohoun
et d. (1985127, pl. 93) to have medicinal uses on
Dominica.
1. Calyx distinctly bilabiate.
2. Calyx lips entire; corolla >1 cm long, showy ......
........................ Scutellaria
2. At least one calyx lip toothed; corollas c1 cm long.
3. Upper calyx lip entire, prominent, lower with 3 sharp
teeth; fertile stamens 4, declinate ..... Ucimum
3. Upper and lower calyx lips toothed, f equal; calyx
glandular-pubescent; fertile stamens 2, ascending
......................... Salvia
1. Calyx with 5-10 k equal teeth.
4. Calyx with 8-10 teeth, some unequal, stamens ascending.
5. Calyx teeth 8; corolla orange ........ Leonotis
Leucas
5. Calyx teeth 10; corolla white. ........
4. Calyx with 5 equal teeth.
6. Leaves deeply palmately lobed, stamens ascending
....................... Leonurus
6. Leaves senate, unlobed; stamens declinate.
7. Nutlet unwinged, calyx not inflated in fruit,
long-tubular (except campanulate in H. sua-
veolens), lobes subulate (except acute in H.
verticillata). ................ HyptiS
7. Nutlet with fimbriate wing; calyx inflated in fruit,
campanulate, lobes deltoid . ... Marsypianthes
Hyptis Jacquin, nom. cons.
Hyptis mutabilis (L. Richard) Briquet (including Hyptis
spicata Poiteau) of the neotropics is found on Guadeloupe and
Martinique. It resembles H. pecrinara but has a calyx tube to 1
cm long, narrow calyx teeth to 1 mm long, the inflorescences
are few-(to 8-)flowered and the persistent bracteoles are
obovate to 1.5 mm wide.
1. Flowers in dense, pedunculate, f globose, axillary heads.
2. Involucral bracts >3 mm wide; prostrate herb .....
...................... H. atrorubens