Flora of Dominica, Part 2 - Smithsonian Institution Libraries

NUMBER 77 VITACEAE-ZYGOFWLLACEAE 229
Neotropics; usually in lowlands of Dominica: Cabrits
(Wasshausen & Ayensu 379, Whitefoord 4015), Clarke Hall
(Erst 1691, Stern & Wasshausen 2413), Laudat (Gillis 8190),
Salisbury (Emst 1426, Nicolson 2040), Salybia (Hodge 3297).
ZY GOPHYLLACEAE
(by R. DeFillips)
Guaiacum oficinale Linnaeus, the lignum vitae of the West
Indies and northern South America, is grown for its resin and
strong wood. It is a small tree with blue flowers and h it with
2-5 winged angles: Canefield Estate house (DHN! fl. June
1977), Roseau Botanic Garden (Hodge 942).
Tribulus cistoides Linnaeus was reported for Dominica by
VClez (1957:118). The genus resembles Kallstroem'a but fruits
have 5 spiny angles. It rarely occurs on sandy and calcareous
substrates of Marie Galante and Martinique and possibly might
be found on Dominica.
Kallstroemia Scopoli
Kallstroemia pubescens (G. Don) Dandy was reported for
Dominica by VClez (1957: 118), as Kallstroem'a caribaea
Rydberg. This species, with smaller flowers and pilose fruits,
has much the same distribution as K. maxima and is expected
on Dominica.
Kallstroemia maxima
Kollstroemh maxima (Linnaeus) W. Hooker & Arnott, 1838,6:282.-Porte.r,
1969:97.
Tribulus marimus Linnaeus, 1753:386.
Procumbent weedy herb; leaves opposite, with 6 or 8
leaflets; sepals hirsute; petals yellow or whitish; fruit with 10
tuberculate angles, glabrous.
Neotropics; in Dominica along dry west coast near sea level:
Grand Savanne (Hodge 3762), Roseau (Ernst 2153).