flora neotropica - CNCFlora

72
Distribution (Fig. 97). This species, described
from two collections from coastal Bahia, appears
to be quite common in the remnants of the south-
ern Bahia wet forest.
6-23. Couepia krukovii Standley, Publ. Field
Mus. Nat. Hist., Bot. Ser. 17: 250. 1937.
Distribution and habitat (Fig. 107). In 1972
this species was still known only from the two
type collections, the type and a paratype, from
the Rio Madeira region. It appears to be confined
to varzea forests of the central part of the basins
of the Rios Madeira and Purus, extending into
Bolivia.
Additional specimens examined. BRAZIL.
AMAZONAS: Rio Purus betwen Redencao and Itaboca,
22 Nov 1971 (fl), Prance et al. 16315 (FHO, INPA,
MG, NY, US).
BOLIVIA. BENI: Rio Beni, Cachuela Esperanza, 28
Feb 1924 (fl), Meyer 46 (Z).
Flora Neotropica
6-29.1. Couepia amaralae Prance, sp. nov. Type.
Brazil. Amazonas: Base of Serra Araca, 3 km
E of Rio Jauari, 0?49'N, 63?19'W, 27 Feb 1984
(fl), Prance et al. 29261 (holotype, INPA; iso-
type, NY). Figs. 17, 97.
Additional specimens examined. BRAZIL. BAHIA:
Marau, 18 Jan 1967 (fl), Belem 3169 (IAN, NY, UB); Species C. racemosae affinis, foliis minoribus
20 km NW of Una, 27 Feb 1978 (fl), Mori et al. 9336 2.5-6 cm
(CEPEC, NY). ESPIRITO SANTO: Reserva Florestal
longis, subtus cavis stomatalis profun-
CVRD, Linhares, 8 Nov 1977 (fl), Spada 007/77 dis, petiolis 4-5 mm longis differt.
(INPA).
Shrub 1-4 m tall, the young branches appressed
lanate pubescent, becoming glabrous with
6-18b. Couepia caryophylloides Benoist subsp. age. Leaf lamina oblong to oblong-elliptic, coglabra
Prance, subsp. nov. Type. Brazil. Para: riaceous, 2.5-6 x 1.5-3.2 cm, rounded at base,
Santarem-Cuiabfa Hwy., km 82, 30 Mar 1984 acute or bluntly acuminate at apex, glabrous
(fl), Medeiros & Marinho 58 (holotype, IAN). above, prominently reticulate beneath with con-
Fig. 99. spicuous deep stomatal cavities filled with short
gray pubescence; midrib prominent and sparsely
A subsp. caryophylloide receptaculo intus gla- lanate beneath, slightly impressed above; pribro
differt.
mary veins 9-10 pairs, prominent and lanate be-
This material is identical to subsp. caryophyl- neath, plane to slightly impressed above; petioles
loides except for the glabrous interior of the re-
4-5 mm long, lanate when young, rugulose, terete,
ceptacle, a consistent character in Couepia; I have
eglandular. Stipules caducous. Inflorescences of
thus recognized the new taxon, which is geo- little branched panicles or racemes, axillary and
graphically distant from subsp. caryophylloides, terminal, the rachis and branches brown-tomenat
the subspecific level.
tose. Bracts and bracteoles ovate, caducous, tomentellous
on both surfaces. Receptacle cam-
6-22. Couepia macrophylla Spruce ex Hooker f.,
panulate-turbinate, 3-4 mm long, tomentellous
Fl. bras. 14(2): 43. 1867.
on exterior, glabrous within except for deflexed
Distribution (Fig. 108). The range of this species hairs at throat. Calyx lobes five, acute, 2 mm
has been considerably extended by recent col- long, tomentellous on both surfaces. Petals five,
lections.
white, glabrous. Stamens 35-40, inserted around
half of circle. Ovary densely villous. Style gla-
Additional specimens examined. PANAMA. DARIEN:
Rio Ucurganti, 7 Jul 1967 (fl), Bristan 1121
brous except for deflexed hairs at base. Fruit
(MO, NY).
glo-
BRAZIL. ACRE: Rio Caete, tributary of Rio laco, 25 bose, 5 cm diam.; exocarp glabrous, lenticellate;
Sep 1978 (fl), J. Ramos et al. 651 (INPA).
pericarp 2-2.5 mm thick, hard and woody, tomentose
within.
Additional specimens examined. BRAZIL.
AMAZONAS: Margin of Rio Jauari, Araca, 1 Mar 1977
(fr), Rosa & Cordeiro 1713 (MG, NY); Rio Araca, 4
Nov 1952 (fr), Fr6es 29277; 3 km S of Serra Araca,
0?49'N, 63?19'W (fl), Rodrigues et al. 10509 (INPA,
NY), Rodrigues et al. 10528 (INPA, NY).
This distinctive new species belongs to the
Couepia species group with deeply reticulate
leaves. The lower leaf surface has deep stomatal
cavities more similar to those that occur in Par-
inari and a few species of Licania than to those
of other species of Couepia. It differs from C.
foveolata, which also has stomatal cavities, in the
branched inflorescence and in the short blunt
leaves, and from C. steyermarkii and C. canes-