Flora of Dominica, Part 2 - Smithsonian Institution Libraries

160 MYRSINACEAE SMITHSONIAN CONTRIBUTIONS TO BOTANY
1. Corolla cupuliform; anthers wider than long, distally
recurved, apically acute or apiculate; petioles present
........................ C. rostratus
Cybianthus parasiticus
Cybianthus parasiticus (Swartz) Pipoly, 198759.
Grammadenia parasitica (Swartz) Grisebach, 1861:393.Stehle,196%:438.
Ardisia parasitica Swanz, 1788:48.
Epiphytic or free-standing shrub to 3 m; leaves sessile,
narrowly oblong-lanceolate, to 6 cm x 1 cm, with many dark,
linear glands beneath; inflorescence a simple, axillary raceme
to 3 cm long; corolla white with purple markings, to 2 mm
long.
Lesser Antilles; in Dominica in mid- to upper elevation
forests: Boiling Lake (Eggers 634), Breakfast River (Hodge
1910), Castle Bruce Road (Cowan 1602), En Haut Jean
(Webster 13531), Laudat (Eggers s.n.), Micotrin slopes (Hodge
1845, Smith 10285,10286, Wasshausen & Ayensu 330, Wilbur
7496), Morne Anglais (Wilbur 7935), Morne Nicholls (Nicolson
1955), Newfoundland (DeFilipps 159), Pont Casse area
(Ernst 1128, Stern & Wasshausen 2554, Webster 13466,
Wilbur 7725, 7818), Rosehill (Eggers 115), Sylvania (Beard
248).
Cybianthus rostratus
Cybianthur rostratus (Hasskarl) Agostini, 1980:155.
Ardisia rostrata Hasskarl. 1868:26.
Conomorpha peruviana var. rostrata (Hasskarl) Mez in Urban, 1901,
2422.Stehl6,1962b:438.
Conomrpha peruviana sensu Grisebach, 1861:393 [as to Antillean material],
non A.L. Candolle.
Small tree to 6 m; leaves elliptic, caudate, to 9 cm x 4 cm, k
fermgineous-lepidote beneath; inflorescence an axillary simple
(sometimes 2-branched) raceme to 4 cm long: fruiting pedicels
to 3 mm; hits dark purple, globose, to 5 mm across.
Lesser Antilles; in Dominica in mid-elevation rainforests of
western slopes: Hampstead River (Nicolson 4332), Jean (Ernst
1821, Webster 13499), Laudat Eggers 91), Layou River
(Cowan 1627, Nicolson 4186), Point Lo10 (Ernst 1982), Pont
CassC (Stern & Wasshausen 2556), Wilbur 8139), Riversdale
(Beard 1455), Rosehill (Eggers 620), Sylvania (Stehle 6313),
sine loc. (Eggers s.n.).
Myrsine Linnaeus
1. Leaves with pellucid dots beneath; young shoots pubescent
........................ M. coriacea
1. Leaves with linear glands and dots beneath; young shoots
glabrous ................... M. Pinitatis
Myrsine coriacea
Myrsine coriacea (Swartz) R. Brown ex Roemer & Schultes, 1819,
4:511.-Stearn, 1969:175.
Samara coriaceu Swartz, 1188:32.
Caballeria ferruginea Ruiz & Pavon, 1198a:280.
Raplnea ferruginea (Ruiz & Pavon) Mez in Urban, 1901,2:429.
Myrsine laeta sensu Griaehch, 1861 :392, non A.L. Candolle.
Bois sand, bois gresse, rassade.
Tree to 10 m, perhaps dioecious; young branchlets rustytomentose,
glabrescenr petiole to 1 cm; leaf blades (1)
chartaceous and elliptic to lanceolate with acute base and apex,
to 8 cm x 2 cm, to (2) coriaceous and obovate with rounded
apex, to 4 cm x 2 cm; inflorescence on short (0.5-2 mm)
annual spurs, to 6 flowers each; pedicels 0.5-0.3 mm; sepals
0.5 mm, fused below; petals erect (staminate flowers) or
reflexed (pistillate flowers), 1-1.7 mm, fused at base; anthers
virtually sessile, on and shorter than petals; stigma (pistillate
flowers) sessile, morel-shaped; h it a globose berry, to 4 mm,
glandular-striate, ripening black.
Neotropics; in Dominica in thickets and rainforest from 500
m of western slopes to summits: Bernard Estate (Wasshausen
& Ayensu 376), Laudat area (Beard 1468, Chambers 2680,
Eggers 569, Hodge 1761, Nicolson 2099, Smith I0285),
Lisdara (Cooper 184, Hodge 666,2375, 2431), Milton Estate
(Hodge 2598), Micomn (Ernst 1097), Mome Couronne
(Webster 13211), Mome Diablotins (Chambers 2644, Nicolson
4175, 4176, Webster 13359), Morne Trois Pitons (Chambers
2591), Salisbury (Stern & Wasshausen 2578), Sylvania (Beard
248, Cooper 29, Hodge 1043, 1166, 3819), Syndicate
(Whitefoord 5336), sine loc. (Eggers s.n.). Flowers November-March,
fruits March-June.
Collections from higher elevations have shorter, obovate,
coriaceous leaves (the “coriacea” element); those from lower
elevations have longer, elliptic, chartaceous leaves (the
“ferruginea” element), but intermediates form a gradient. One
collection (Gillis 8209) from “coast south of airfield,” then at
Melville Hall in northeast, and it, coupled with the collection
from Salisbury, suggests that this species may range from sea
level on both sides of the island to the summits of its highest
mountains, although it is most commonly found in the mid- to
higher elevations.
Myrsine trinitatis
Myrsine trinitatis A.L. Candolle, 1834:108.
Raplnea trinitah (A.L. Candolle) Mez in Urban, 1901, 2432.Stehle,
1962b:440.
Small tree; petiole to 1 cm long, leaf blades coriaceous,
elongate-elliptic (to 7 cm x 1.8 cm), base acute, apex acute but
with a rounded tip, the upper surface glossy beneath lighter and
with glandular lines and dots; inflorescence to 6flowered, on
perennial spurs to 4 mm long.
Lesser Antilles and Trinidad; in montane forest of Dominica
-800 m: Morne Plat Pays (Hodge 1733), sine loc. (Imray s.n.
(as M. cubuna A. DC.), Imray 46 at K, Imray 254 at K).