Flora of Dominica, Part 2 - Smithsonian Institution Libraries

106 FABACEAE SMITHSONIAN CONTRIBUTIONS TO BOTAhY
Zndigofera Linnaeus (Faboid)
Herbs or shrubs; hairs medifixed, leaves odd-pinnate with 7
or more stipellate leaflets; stamens mostly monadelphous; pod
terete or 4-angled, septate between seeds.
1. Leaves 2-3(-5) cm long; leaflets alternate ........
.......................... I. spicata
1. Leaves 5-10 cm long; leaflets paired.
2. Pods short (1-1.5 cm), strongly curved; leaflets obtuse
to acute ................. 1. suffruticosa
2. Pods elongate (2.5-3.5 cm), slightly curved; leaflets
rounded to emarginate ........... 1. tinctoria
Zndigofera spicata
Indigofera spicato Forsskau, 1775:138.4illett, 1958:119.
Indigofera endecaphyllo Jacquin. 1788, Coll., 2358, "hendecophylla."
Prostrate herb; flowers pink, on erect spikes; pods deflexed,
slightly down-curved.
Old World weed introduced into neotropics; new record for
Dominica: Scotts Head (Whitefoord 5550). Whitefoord
(1989: 145) reported this collection as Indigofera hartwegii
Rydberg.
Indigofero s ~~ricmo Miller, 1768.
Zndigofera slcffrutkosa
Shrub to 1.5 m; leaflets 5-6 pairs, 1.5-3 cm x 0.5-1 cm,
mucronulate; flowers salmon-colored.
Neotropics, now widespread; lowlands and midlands of
Dominica, often in damp places: Cabrit swamp (Hodge 609,
Wilbur 8256), Carib Reserve (Hodge 3396), Colihaut (Ernst
1134), Dublanc (Whitefoord 4289), Grand Savanne area
(Chambers 2791, Hodge 3769, Wilbur 8342), Scotts Head
(Hodge 1619, Wilbur 760I), South Chiltem (Stern & Wasshausen
2531).
Zndigofera tinctoria
Indigofera tinctorih Linnaeus, 1753:751.
Shrub; leaflets 7-13, 1.5 cm x 1 cm, obovate, rounded at
apex; pod slightly torulose.
Paleotropics, formerly widely cultivated as a dye source,
now naturalized: Pointe Michel (Gillis 8118).
Znga Miller (Mimosoid)
Trees with evenly pinnate leaves and a gland between the
leaflet pairs; flowers spicate or racemose; calyx 5-parted;
corolla tubular to middle or beyond; stamens many, long
exserted, united below; pod flat or terete and ribbed,
indehiscent.
1. Petiolar rhachis winged; legume terete, grooved or ribbed
......................... I. ingoides
1. Petiolar rhachis unwinged, fruit flattened.
2.
2.
Inflorescence to 5 cm long; calyx and corolla sericeous
to strigose, staminal tube included in corolla tube;
legume with markedly elevated borders . .......
..................... I. dominicensis
Inflorescence >5 cm long; calyx and corolla glabrous;
staminal tube exserted from corolla tube, legume with
borders not markedly elevated ....... 1. laurina
Znga dominicensis
Ingo dominicenris Bentham. 1875:612.-Leon, 19W296.
Small tree to 4 m; leaflets in 2 to 4 pairs, ovate-lanceolate,
6-12 cm x 3-4 cm; flowers white, pedicels 1-2 mm long;
calyx 2-4 mm long; pods 7-11 cm x 2-2.5 cm, the margins
elevated.
Endemic; apparently rare in wet interior uplands from 750 to
lo00 m: Laudat to Micotrin area (Ernst 1171, 2164, Hodge
1924, Whitefoord 4189), upper Layou drainage (Stehle 6330),
sine loc. (Zmruy 336 at K, fl. (type)). Emst collections flowering
in August, fruiting in May; Stehle collection flowering in April.
The Imray collection was cited as I. murtinicensis Presl by
Grisebach (1860:227), another high elevation endemic (of
Martinique) that has broader and bullate leaves.
Znga ingoides
Ingo ingoidm (L. Richard) Willdenow, 1806.4:1012.-Leon, 1966:342.
Mimo ingoides L. Richard, 1792:113.
Poix doux marrons.
Tree to 25 m; rhachis winged, with 3-5 pairs of leaflets;
flowers forming a rather flat-topped raceme, pedicels to 1 cm
long; calyx c1 cm long, red-pubescent; pods elongate, terete,
grooved to ribbed.
South American species penetrating the Antilles to Guadeloupe;
frequent tree in lowlands and midlands of Dominica:
Bellevue (Eggers 644), Carib Reserve (Taylor 12), Clarke Hall
area (Clarke 06, Ernst 1209, Hodge 610, Nicolson 1803),
Indian River (Finlay? s.n., 16 Jul 1792 at K), La Chaudiere
(Hodge 3546), La Plaine (Whitefoord 5363), above Laudat,
-700 m (Beard 654, Chambers 2684), Lisdara (Cooper 183,
Hodge 2352), Mome Aux Diables (Wasshausen & Ayensu
378), 2 miles [3 km] south of Pagua Bay (Long & Norstog
3386), Rosalie Valley (Lloyd 707), Soufriere (Eggers IlO),
Sylvania (Hodge 1046), Syndicate (Hodge 2707, Whitefoord
4342,5634,5958), sine loc. (Imray 340 at K).
This species can be confused with Inga Vera Willdenow of
Central America and the Greater Antilles, which has a
spiciform raceme with almost sessile flowers and calyces 1 cm