Flora of Dominica, Part 2 - Smithsonian Institution Libraries

NUMBER 77 RUEIIACEAE 191
Adjanohoun et al. (1985: 169, pl. 136) reported medicinal use
(as Oldenlandia corymbosa L.) as a decoction syrup to treat
grippe.
Hillia Jacquin
Hillia parasitica
Hillia parasitica Jacquin, 1760:18.-Standley in North Amer. Fl., 1921.
32:116.Ste.yermark, 1972:291.
Hillia longifIora Swam, 1788:58, nm. illeg.
Sprawling shrub or liana with solitaty, terminal, (4-)6-lobed
flowers -10 cm long; leaves acuminate, leathery; stipules 3 cm
x 1 cm, soon deciduous; fruit an elongate (to 6 cm) capsule with
hairy seeds.
Northern neotropics; common to occasional in Dominica in
interior forests, 450-1150 m: Bellevue (Taylor 33), Boiling
Lake (Hodge 1939), Carib Reserve (Hodge 3233, Concorde
Valley (Hodge 3110), Pointe Lolo (Webster 13386), Laudat-
Freshwater Lake area (Chambers 2690, Ernst 1098, Gillis
8161, Hodge 1802, 1839, Lloyd 164, Nicolson 1840, Smith
10256, Webster 13239, Wilbur 7389), Pont Casse area (Ernst
1012, Stern & Wasshuusen 2557, Webster 13469, Wilbur 7816,
7845), Syndicate (Hodge 2587).
Zxora Linnaeus
Zxora macrothyrsa (Teijsmann & Binnendijk) T Moore has
been collected in the Roseau Botanic Garden (Hodge 974,
3952). This may be a misidentification of Zxora casei Hance or
Zxora dufii T. Moore, true I. macrothyrsa being apparently
unknown in cultivation.
1. Leaves sessile; inflorescence terminal: flowers to 5 cm
long . . . . . . . . . . . . . . . . . . . . . . Z. coccinea
1. Leaves shortly but clearly petiolate; inflorescence axillary
(on old wood); flowers to 1 cm long . . . . . , . Z.ferrea
Zxora coccinea
Ixoru coccinea Linnaeus, 1753:110.-Fosberg & Sachet, 1989:487.
Petit z’icaque.
Shrub with rounded to & amplexicaul leaf-bases; color forms
from yellow to red.
Asiatic species now widely cultivated; cultivated in Dominica
but collected once on windswept east coast: Castle Bruce
trail between Salybia and Gaulettre River (Hodge 3333), cult.
in Roseau Bot. Garden as I. lutea (Fairchild 2668) and I.
chinensis (Fairchild s.n.).
Zxora ferrea
Ixora ferrea (Jacquin) Bentham. 1850447.4tandley in North Amer. Fl..
1934, 32:299.--Steyermark, 1%7:352.
Sideroxyloides ferreum Jaquin, 1763:19. pl. 175: fig. 9.
Bois pichette, his crapaud.
Small tree to 12 m; flowers axillary in 1-3-flowered cymes,
pink to orange-red outside and white within.
West Indies and Venezuela: infrequent in Dominica but
pervasive in eastern subcoastal woodlands and interior to 750
m: Brush (Nicolson 2157, Wasshausen & Ayensu 405), Castle
Bruce (Ramage s.n.), La Plaine area (Chambers 2727, Ernst
1913), Laudat-Freshwater Lake area (Chambers 2681), Mome
au Diable (Nicolson 1931, Wasshausen & Ayensu 371), Lisdara
(Cooper 159, 159A, Hodge 2391, 2473), Mome Plat Pays
(Wilbur 7870), Pointe Lolo (Ernst 1172, 1548), Red Gully
(Hodge 251 0), Sylvania (Hodge 1033, Syndicate (Whitefoord
4359).
Manettia Mutis ex Linnaeus, nom. cons.
Manettia dominicensis
Manettia dominicensis Wemham, 1918:37.-Standley in Nodh Arner. H.,
1921,32:98.
Manettia calycosa sensu Grisebach, 1861:330, as to Dominican specimen cited.
Twining vine; calyx 4-lobed, the lobes -2.5 mm broad at
base, tapering, persistent, -6 mm long; corolla white, -1 cm
long, tubular.
Guadeloupe to St. Vincent (St. Lucia?); occasional in
Dominica but only in one area: Freshwater Lake vicinity
(Chambers 2745, Eggers 53, Ernst 1092, 2172, Fosberg
48274, Ramage s.n., Warshausen & Ayensu 324, Webster
13257, Wilbur 7392), sine loc. (Zmray 65,216).
Chung (1967:277) designated material in an envelope
attached to Zmray 65 (GOET) as lectotype of Manettia calycosa
Grisebach, a distinctive species with red flowers and broad
calyx lobes known only from Hispaniola, Colombia, and
Venezuela. Chung explained the type as “the corolla and two
capsules in the envelope should be the type. The branch with
leaves and capsules is M. dominicensis Wernh.” This lectotypification
perhaps is superseded because its provenance is
unknown and is surely from one or two other specimens that
have been recognized as taxonomically different.
Grisebach’s protologue for M. calycosa is a mixture of
characters and specimens that can be attributed to M. calycosa
or M. dom’nicensis. Usage is established and I see no reason to
change the historic application of the names. Grisebach said
“HAB. Dominica!, Zmr., in the mountains: a form with
ovate-lanceolate calyx lobes; [Haiti!, Venezuela!, Fendl. 5881.”
What he meant was simply that this taxon (called“form”) has
ovate to lanceolate calyx-lobes and was collected by Imray in
Dominica (included in the coverage of his flora) and occurs
outside the coverage of the flora (cited in square brackets) in
Haiti (actually a Schomburgk collection at Kew) and Venezuela
(Fendler 588). It is reasonably evident from his
description and the syntypes that Grisebach placed more weight
on the flowering specimens (from Haiti and Venezuela) than on
the fruiting specimen (from Dominica). Hence, I have no