Flora of Dominica, Part 2 - Smithsonian Institution Libraries

134 LORANTHACEAE-LYTHRACJME SMlTHSONIAN CONTRIBUTIONS TO BOTANY
Nicolson and Jarvis (1984:726) discussed the confusion that
arose when Viscum verticillatum Linnaeus (1753), involving a
diseased aspect of Cissus sicyoides Linnaeus (1759) that is
represented by a Sloane illustration and specimen, was
expanded by Linnaeus (1763) to include elements (Browne and
Plumier) attributable to Phoradendron trinervium. When
Grisebach published Phoradendron trinervium he referred to
Viscum verticillatum Linnaeus, explicitly excluding the Sloane
element. Both Druce (Feb 1914) and Fawcett and Rendle (Nov
19 14) published Phoradendron verticillatum, the former not
managing to exclude the Sloane element and the latter doing so,
hence Fawcett and Rendle’s later homonym pertains to
Phoradendron and Druce’s to Cissus. The correct name for the
latter is Cissus verticillatu (Linnaeus) Nicolson & Jarvis.
The only addition to the Nicolson and Jarvis paper concerns
the apparently Asiatic Linnaean specimen (from “Angor
utan”), which was superseded as the lectotype of neotropical
Cissus sicyoides Linnaeus (1759). Planchon (in A.L. and A.C.
Candolle, 1887, 5(2):522, see also 503-504) identified it as
Cissus repens Lamarck, an Asiatic species.
Phoradendron undulatum
Phoradendron undulatum (Pohl) Eichler in Martius, 1868, 5(2):122.-
Trelease. 1916:13O.-Kellogg & Howard, 1986:94.
Viscum undvlafwn Pohl in A.P. Candolle, 1830,4:282.
Phoradendron herminieri Trelease. 1916:131.
Branchlets k terete; leaves 10-12 cm x 2-3.5 cm,
lanceolate; inflorescences to 4 cm long in flower, type la; fruits
globose, becoming white and strongly wrinkled, sepals k
parted.
Widely distributed in South America to Costa Rica but of
limited distribution in the Antilles (Guadeloupe and Martinique);
midlands of Dominica: Laudat (Lloyd 207).
Psittacanthus Martius
1. Flowers red, curved; calyx deciduous . . . P. americanus
1. Flowers yellow, straight; calyx (at top of ovary) persistent
in fruit. . . . . . . . . . , . . . . . . . R martinicensb
Psittacanthus americanus
Psittacanthus mricanus (Linnaeus) Madus, 1830108.
Loranthus americonus h aws, 1753:331.
Guadeloupe, Martinique, Trinidad, and Venezuela (Central
America unless those axe I? calyculatus); rare in Dominica in
less wet forests at 30-450 m: Cocoa Center (Erst 2184,
South Chiltern (Hodge 1582). The Ernst collection notes that it
is growing on Lonchocarpus sp.
Psirtacanthus martinicensis
Psittacanthus marfinicensis (J.A. & J.H. Schultes) Eichler in Martius, 1868,
5(2):26.
Loranthus martinkensis Red ex J.A. & J.H. Schultes in Roemer & Schultes,
1830,7(2):1640.
Psitiocanthus &minicemis Domin, 1930x3.
Capitaine bois, maitre bois, roi bois, kingwood, roi de
l’arbre.
Guadeloupe and Martinique; common in Dominica in wet
midlands: Grand Bay road (Emst 1607, Stehle 6345), Laudat
(Hodge 2046, Lloyd 211), Point Lolo-Pont Casse (Erst 1957,
Wilbur 7829), Providence Valley (Hodge 2046), Roche d’Or
Estate (Stern & Wasshausen 2584), Sylvania area (Hodge 651,
1263, Nicolson 1876, Wasshausen & Ayensu 393, Webster
13415, Wilbur 7715), Syndicate (Ernst 2102, Whitefoord
3880), Trafalgar Falls (Gillis 8199), sine loc. (Cooper 39).
Often parasitizing cultivated or naturalized species: Citrus,
Eugenia jumbos, Inga laurina, Mangifera indica, Persea,
Pimenta racemosa, and Psidium guajava.
Adjanohoun et al. (1985133, pl. 99) reported a medicinal
use.
Domin 0.c.) separated Psittacanthus dominicensis from P.
martinicensis apparently solely on the basis of anther lengths,
P. dominicensis having anthers 5 mm long and P. martinicensis
having anthers 3 mm long. Our specimens appear to have two
kinds of stamens in the same flowers, the upper three stamens
with anthers 3.5-4.6 mm long and the lower three with anthers
4.0-5.7 mm long. Recognition of species on the basis of anther
lengths does not seem appropriate in this case. Kellogg (in
Howard, 1988, 4:101) considered P. dominicensis to be a
narrowly leaved aspect of P. martinicensis.
LYTHRACEAE
Dr. S. Graham (KE) kindly advised me on the underlying
information for names treated here as excluded. Her treatment
(in Howard, 1989, 5:426-440) is excellent and must be
consulted by anyone suspecting a new family record for
Dominica.
Lawsonia inermis Linnaeus, a shrub introduced from the Old
World with white or yellow terminal flowers, is cultivated in
Dominica at Cote d’Or (Nicolson 2064) and the Roseau
Botanic Garden (Hodge 1009,3939).
Lagerstroem’a speciosa (Linnaeus) Persoon, the queen’s
flower tree, is cultivated and was collected in Portsmouth as a
tree 50 ft [15 m] high (Whitefoord 5828).
Excluded Lythraceae
Ammunnia coccinea Rottb0ll was attributed to Dominica by
Graham (in Howard, 1989,5:429). She advises me that this was
based on material (P) now known to be from @ti (Marquissant,
Saint Domingue).
Cuphea Browne
Cuphea hyssopifolia Kunth of Central America was attributed
to Dominica by Grisebach (1860:270) based on an Imray
collection (not seen). This is believed to be a misidentification
of C. carthagenensis. A recent collection from Baiac (White-