Flora of Dominica, Part 2 - Smithsonian Institution Libraries

84 EUPHORBIACEAE SMITHSONIAN CONTRIBUTIONS TO BOTANY
attenuate-acuminate at tip, foliose-auriculate at base; stamens
-12- 16, filaments hirsutulous; pistillate sepals reduplicatevalvate,
styles multifid.
Lesser Antilles (Dominica to St. Vincent) and Venezuela; in
Dominica a dominant in xerophytic west coast scrub thickets to
125 m: Batali River lava ridges (Webster 13404), Dublanc
(Hodge 2520), Fond Hunte Estate (Whitefoord 4449), Grand
Savanne (Ernst 1047, Hodge 3802,3803, Wilbur 7638), Layou
village (Ernst 1881), West Cabrit (Hodge 555, Webster 1330I),
sine loc. (Imruy s.n.).
The fact that Geiseler attributed the validating description to
Vahl suggests that the authorship should be attributed to Vahl
in Geiseler's work (Art. 46.2, ICBN).
Croto n co ry lifo lius
Crofon corylifolius harck, 1786,2:205.
Aromatic shrub or tree to 5 m; leaf-blades ovate, lance-ovate
or elliptic, irregularly serrate-dentate, acute or acuminate, to 13
cm long, densely stellate-pubescent beneath when young,
sparsely pubescent above.
West Indies and northern S. America; in Dominica in dry,
west coast scrub thickets to 180 m: Cabrits (Hodge 557, Smith
10315, 10319, Webster 13304, Whitefoord 4045), Clarke Hall
(Webster 13165,13184), Layou Village (Ernst 1506,1880).
CrotonJavens Linnaeus, 1759a:1276.
Croton balsmifer Jacquin, 1760:32.
Croton jlavens
Bitter shrub, copaie, copaiba.
Shrub or tree to 5 m; stipules absent; glands at apex of petiole
several, leaf-blades lanceolate or lance-ovate, entire, acumi-
~te, to 10 cm long, stellate-pubescent beneath, sparsely
pubescent above; stamens 15-16, with glabrous filaments;
seeds smooth.
West Indies; in Dominica a dominant in xerophytic west and
southeast coastal scrub-thickets to 190 m: Batali River lava
ridges (Webster I31 79), Cape Melville (Chambers 2662),
Cabrits (Hodge 556,558, 3723, Nicolson 1894, Smith 10309,
Wilbur 7636, 8266), Carib Point (Wilbur 7909), Grand
Savanne (Beard 245, Ernst 1046, 1891, 2144), Mero (Stern
2435), Mome Daniel (Webster 13292), Pointe Ronde (Ernst
1536, Hodge 2653), Salisbury (Chambers 2731), Scotts Head
(Kimber 885, Webster 13438, Wilbur 7604), Tarou Cliffs
(Nicolson 1861).
Our material belongs to the Lesser Antillean taxon, Croton
j7uvens var. balsumifer (Jacquin) J. Mueller, distinguished from
the Greater Antillean var.flavens by having more pointed, less
pubescent leaves.
Honychurch (1980:38) said the wood is used for fences and
the aromatic sap is distilled for toilemes. Adjanohoun et al.
(1985:97, pl. 64) reported several medicinal uses.
Croton hirtus
Croton hirtus L'H6ntier, 1785:17.-Webster in Webster & Burch, 1968:262.
Crofon glandulosus var. hirfus (L'HCritier) J. Mueller in A.P. Candolle, 1866,
15(2):684.
Annual herb to 6 dm; stems stellate-pubescent, hispid;
leaf-blade ovate-lanceolate, serrate, acute, stellate-pubescent
above and beneath: 2 glands at petiole apex on slender stalks
0.5-1.0 mm long; inflorescence bracts usually with glandtipped
processes; stamens 1 1, filaments glabrous.
Tropics; in Dominica a weed on west coast near sea level:
Goodwill (Ernst 1847, Wilbur 7567), La Plaine (Whitefoord
5413).
Croton lobatus
Croton lobatus Linnaeus, 1753:1005.-Webster
1968:263.
in
Webster & Burch,
Annual herb to 6 dm: branchlets pilose with simple and
stellate hairs: petioles pilose with stellate hairs: leaf-blade
deeply 3-5-lobed, serrate, lobes acuminate, to 8 cm long,
pubescent with mostly simple hairs; stamens 12-15, filaments
glabrous; ovary hispid; seeds tetragonal.
Neotropics, Africa, Arabia; a new record for Dominica, on
roadside at 15 m: Baiac road (Whitefoord 4622), Cabrit Swamp
(Whitefoord 4082), Layou River Valley (Ernst 1132).
Dalechampia Linnaeus
Dalechampia scandens
Dalechampia scandens Linnaeus, 1753:1054.-Webster in Webster & Burch,
1968:309.-Webster & Webster, 1972.
Pubescent vine resembling hops; leaf-blade deeply 3-lobed,
denticulate or k entire; inflorescence bracts 2, each 3-lobed,
glandular-ciliate; sepals of female flowers pinnatifid, not
glandular-ciliate; capsule 7-10 mm wide, pilose.
Neotropics; in Dominica in dry woodlands to 120 m: Layou
River Valley ridges (Ernst 1512). This material falls in the
typical variety.
Drypetes Vahl
Drypetes glauca
Drypetes glauca Vahl, 1807, Eclog. 3:49.-Pax & Hoffrnann in Engler, 1922,
IV.147 (Heft 81):229.
Dioecious shrub or tree to 20 m; young twigs and flowers
yellowish sericeous; leaves ovate-lanceolate, entire or undulate,
to 17 cm x 7 cm, acute or acuminate; male flowers
fasciculate, stamens 6-8 with glabrous anthers; ovary l-celled
with 1 stigma; drupe obovoid, symmetric, 1-2 cm long.
West Indies; in Dominica in rainforest understory 300-550
m: Bells (Whitefoord 6146), Glasham (Nicolson 2094), Mome
Plat Pays (Wilbur 7869), South Chiltern (Ernst 1868, 1869,