Flora of Dominica, Part 2 - Smithsonian Institution Libraries

NUMBER 77 PIPERACEAE 177
6. Leaves elliptic, etc. but not rotund .......
.................... P. tenella
6. Leaves rotund or very nearly so.
7. Stem glabrous, leaves often emarginate, to
0.5 cm across; fruit on stipe 0.8 mm long
................ P. emarginella
7. Stem puberulent; leaves not emarginate, to 1
cm across; fruit not stipitate .........
................
P. rotundifolia
5. Plants erect; leaves 2 cm wide or more; venation
distinctly palmate.
8. Leaves thin, pellucid (translucent), glabrous;
leaf-bases cordate to k cordate .........
.................. P. pellucida
8. Leaves opaque, glabrous or pubescent; leafbases
cuneate to rounded.
9. Stems and petioles pubescent ........
.................. P. hirtella
9. Stems and petioles glabrous.
10. Leaf apex obtuse to acute; plant inconspicuously
black-punctate, erect and not
rooting at nodes ...... P. myrtifolia
10. Leaf-apex acute to acuminate; plants conspicuously
black-punctate (when dry),
typically rooting at nodes .........
............. P. nigropunctata
Peperomia emarginella
Peperomia emarginella (Wikstrom) A.C. Candolle in A.P. Candolle, 1869,
16:437.-Howard, 1973a:382.
Piper emarginellwn Swam ex Wikstrom. 1828:56.
Delicate repent herb, often epiphytic; stem glabrous; leaves
rotund, to 0.5 cm wide, glabrous to sparsely villous.
Neotropics; common in Dominica in wet forests 325-1000
m: Deux Branches (Hodge 3000,3576,3492), Hatton Garden
(Hodge 409), Laudat (Hodge 1810, Lloyd 212), La Chaudiere
(Hodge 3576). Morne Plat Pays (Hodge 1659), Morne Trois
Pitons (Hodge 1189, Wilbur 7811), Pont Casse (Chambers
2542), Ravine Deux Dleau (Ernst 1902), Salybia River (Hodge
3242), Trafalgar Falls (Hodge 2013).
Peperomia hernandiifolia
Peperomia hernandiifolia (Vahl) Dietrich, 1831, 1:157.-Howard, 1973a:384.
Piper herdiifoliwn Vahl. 1804. Enum., 1 :344, "hernandifoliwn."
Repent, puberulent, sometimes epiphytic herb; leaves peltate.
Neotropics; common in Dominica in rainforest 500- 1050 m:
Brantridge (Ernst I195), Freshwater Lake (Whitefoord 4189,
Laudat (Eggers s.n., Hodge 1843), Morne Anglais (Fennah 18,
Hodge 410, 2310), Morne Micotrin (Wilbur 7464), Mome
Negres Marrons (Hodge 1058), Morne Nicholls summit
(Hodge 1944), Morne Plat Pays (Hodge 1687, I705), Mosquito
Mountain (Websrer 13533), Pont Casse (Hodge 1192, Wilbur
7800, 8149), Sylvania (Hodge IIOO), Trois Pitons River
(Nicolson 1948), sine loc. Dudley s.n.
Peperomia hirtella
Peperomia hirtella Miquel, 1845:414.-Howard, 1973a:384.
Peperomia herminieri A.C. Candolle, 1882316.
Peperomia dissitifora A.C. Candolle, 1898:279.
Epiphytic and puberulent herb; leaves black-punctate,
elliptic to ovate, palmately veined.
Lesser Antilles; common in Dominica in upland and mossy
forests: Central Forest Reserve (Ernst 1182), Freshwater Lake
area (Ernst 1788, Hodge 1861, Nicolson 1835, Smith 10240,
10257, Webster 13252, Wilbur 7400), Mome Anglais or
Couliaboune (Hodge 416, 420, 2262, Imray 244, Lloyd 212,
Wilbur 7965), Morne Diablotins (Hodge 2789,2820, Nicolson
1917, Webster 13345), Mome Micotrin (Fosberg 48290,
Morne Negres Marrons (Hodge IO68), Morne Nicholls (Hodge
1922), Morne Plat Pays (Hodge 1686), Mome Trois Pitons
(Hodge 419,1379), Mosquito Mountain (Webster 13542).
Peperornia magnoliifolia
Peperomia magnoliifolia (Jacquin) Dietrich, 1831, 1:153.-Howard,
1973a:386.
Piper magnoliifoliwn Jacquin. 1789, Coll., 3:210, "magnoliaefolium."
Peperomia conulifera Treleasein Stehle et al., 1948,2:44.Stehle, 1957:618.
Glabrous herb; leaves elliptic to obovate; fruit beak straight
or bent but not hooked.
West Indies, northern S. America; in Dominica from 65-600
m: Badineau Estate (Hodge 2239, Clarke Hall (Ernst 1708,
Webster 13197), Grand Bay (Wilbur 7917), Hatton Garden
(Hodge 3035), La Plaine (Ernst 1908), Lisdara (Cooper 178),
Montpelier (Lloyd 583), Mome Colla Anglais (Webster
13433), Petit Coulibri (Whitefoord 6026). Petite Soufribre Bay
(Stern & Wasshausen 2480), Roseau (Stehle 6318), Salybia
(Hodge 417,3314), South Chiltern (Hodge 1507,1550,1558).
Peperomia myrtifolia
Peperomia myrtifolia (Vahl) Dietrich, 1831, 1:147.-Howard. 1973a:387.
Pipermyrfifoliwn Vahl, 1804, Enum., 1:341.
Peperomia ruprrfiana A.C. Candolle in A.P. Candolle, 1869, 16:413.
Peperomia broadwayi A.C. Candolle in Urban, 19M, 3:240.
Succulent often with reddish stems; leaves palmately veined
broadly elliptic-ovate, obtuse to acute at apex.
Lesser Antilles; in Dominica in dry areas 10-150 m: Cabrits
(Nicolson 1896, 4204, Webster 13302, Whitefoord 3990,
Clarke Hall (Stern & Wasshausen 2388).
A specimen from Fon Pays (lo00 m in rainforest), Hodge
2846, has been annotated by R.A. Howard (in 1972) as this
species. The habitat seems wrong. The specimen is poor and
does not well match any other species.