Flora of Dominica, Part 2 - Smithsonian Institution Libraries

NUMBER 77 BIGNONIACBAE 51
The binomial Tecomu leucoxylon Martius ex A.P. Candolle
(1845, 9:219) is a legitimate name under Article 72 (Note)
(ZCBN), with priority dating from 1845, not 1763. De Candolle
and later authors (Grisebach, 1862447; Urban, 1911, 4565)
also included elements of what would not only appear to be T.
heterophyllu (pan-Antillean) but also T roseu (South America)
and T ripuriu (Jamaica).
Bignoniu pentuphyllu Linnaeus (1763:870) comes next.
Sandwith (1953:453) argued that this constitutes an illegitimate
renaming of Bignoniu leucoxylon Linnaeus (1753:624) and
thus falls into the synonymy of Tubebuiu ripuriu (Jamaican
endemic). The binomial Tecomu pentuphyllu Jussieu ex A.P.
Candolle (1845, 9:217) is a legitimate name under Article 72
(Note) (ZCBN) with priority from 1845, not 1763. It is possible
that a lectotype of Tecomu pentuphyllu could be selected that
could be identified with the pan-Antillean species (I: heterophyllu),
but de Candolle apparently also included the Lesser
Antillean endemic (I: pullidu). In any case, Grisebach
(1861:447) and Urban (1911, 4565) indiscriminately used
Tecomu pentuphyllu for elements of all four species.
Ruputiu (Rutaceae!) heterophyllu A.P. Candolle
(182k 153) is based on sterile material from Puerto Rico. The
type (microfiche) corresponds to our concept of the pan-
Antillean species, for which we accept the name Tubebuiu
heterophyllu (A.P. Candolle) Britton (191548).
Finally, Bignoniu pullidu Lindley (1826b) is based on
unifoliolate material cultivated in St. Vincent. This is what we
regard as the Lesser Antillean endemic, for which we accept the
name Tubebuiu pullidu (Lindley) Miers. This name has been
generally used for other taxa, particularly the pan-Antillean
taxon (Britton and Wilson, 1925, 6:196, Gooding et al.,
1965389).
We reemphasize that our acceptance of the species rank for
the two Dominican taxa is provisional. On Dominica they are
very distinct in aspect and habitat but material from other
islands is not so easily divided. Stehl6 (1945338; 1946a:32)
recognized three subspecies within a variable concept of I:
heterophyllu. Little and Wadsworth (1964:498) went further
and accepted I: heterophyllu as a variable species without
subspecies. A revision of Antillean Tabebuieae, particularly
accounting for the Cuban taxa, is needed.
1. Leaflets (3-)5, west (leeward) coast . . . I: heterophylla
1. Leaflets 1(-3); east (windward) coast . . . . . I: pallida
Tabebuia heterophylla
Tabebuia heterophylla (A.P. Candolle) Britton. 1915:18.-Little & Wadswod,
1964:198, pl. 236.
Rap& heterophylla A.P. Candolle, 1822~153; 1824, 1:734.
Tecoma pentaphylla Jussieu ex A.P. Candolle, 1845, 9:217.-Urban, 1911,
4565.
Tabebuia pentaphylla (A.P. Candolle) Hemsley, 1882, 2:495.-Urban, 1921,
8:641.
Tabebuia pallida subsp. pentaphylla (A.P. Candolle) Stehlb, 1945:329,338.
Tabebuia heterophylla subsp. pallida sensu Stehlb. 1946a:32, as to description,
not as to the Lindley type.
White cedar, poirier blanc.
Tree to 6(-20) m; leaves (3-)5-foliolate, leaflets to 9(-12)
cm x 5.5 cm, apex obtuse to emarginate and base rounded,
petioles to 5 cm, petiolules to 3 cm; calyx 1.5 cm long,
irregularly lobed; corolla to 8 cm long, pale violet with
yellowish center, lobes flattened, to 2 cm long; fruits terete, to
20 cm x 1 cm, apex attenuate; seeds flattened, 0.6 cm x 1 cm,
hyaline wings to 2 cm long.
Antillean (except Jamaica); common in dry scrub along west
coast of Dominica: Cabrit (Smith 10310), Grand Savanne
(Beard 246), Hungry Hill (Whitefoord 4483,Loubiere (Hodge
3864), Mero (Stern & Wusshausen 2437), Morne Bruce
(Fuirchild 283I), Morne Daniel (Webster 13291), Pointe
Ronde (Hodge 2660,2755), Salisbury (Chambers 2801), Scotts
Head (Hodge 1603, Kimber 884, Wilbur 7589), Tarou Cliffs
(Nicolson 1858). Flowering January-June, fruiting in July.
Tabebuia pallida
Tabebuia pallida (Lindley) Miers, 1863:199.
Bignonia pallida Lindley, 1826b.
Tabebuia Mnicensis Urban, 1924:308.
Tabebuia pallida subsp. dominicensis (Urban) Stehlb,1945:330,338.
Tabcbuia heterophylla subsp. dm’nicensis (Urban) Stehlb,196:33.
Poirier.
Tree to lo(-30) m; leaves usually simple with apex rounded
to obtuse, to 20 cm x 9 cm, petioles to 5 cm, or when rarely
3-fOliOhte, leaflets to 12 cm x 5.5 cm, petioles to 9 cm and
petiolules to 3 cm; pedicels 3 cm, slender; flowers and fruits as
above; seeds as above but perhaps k larger.
Guadeloupe, Martinique, St. Vincent, Barbados, Grenadines,
and St. Lucia; common in Dominica in the eastern (windward)
coastal forests: Au Park (Red 20270), Bout Sable Bay
(Nicolson 1983, L’Anse Noire (Wilbur 7518), Hatton Garden
(Hodge 3055), La Plaine (Rumuge s.n., type at K), Marigot
(Hodge 839), Petit Soufriere Bay (Stern & Wusshuusen 2477),
St. Davids Bay (Emst 1470, Wilbur 7987), St. Saveur
(Chambers 2549), Salybia (Stehle 6091, 6387). Flowering
January-May; fruit formed in many months, apparently mostly
in July.
Caribs use the wood of this (perhaps also the other species)
for ship building and other purposes (Hodge and Taylor,
1957608). Adjanohoun et al. (198557, pl. 23) reported
medicinal usage of what probably is a composite of the two
taxa recognized here.
Tanaecium Swartz
Tanaecium crucigerum
TaMeciwn crucigerwn B. Smann, 1856:27.4enuy, 1975: 122.
Scrubby vine to 3 m; leaflets elliptic, apex rounded or