Lindleyana 12(1): 51, f. 12. 1997

LUER-
EW PEClES OF LEPANTH
AND PL£ ROTHALLI
tu e, concave, 30 mm long, 20 mrn wide unexpanded, 16- to 18-veined, the lateral epal completely connate into an o ate, a ute yn epal. 27
mrn long, 15 mrn wide, I 0- to 12-vei ned. concave
basal ly beneath the column ; petal decurved , entire, oblong, obtu e, II mrn long, 5 mrn wi de,
5-veined; lip glabrou , tran ver ely ovate. broadly
obtu e, trilobed, 6 mrn long, 9 mm wide, the lobe
below the middle, erect, rounded , the di c ith 4
prominent vein and a glenion at the base, tran ver ely flat on the end without defle ion, hinged
to the column-foot ; column tout, terete, 1.5 mm
long, 2.5 mrn wide, the anther and entire tigma
apical .
ETYMOLOGY: Named in honor of Andr
Madura of Panama, Panama, who di cover d thj
pecie .
Thi large-flowered pecie wa collected in the
mountain of westemmo t Panama. The po ition
of the fl ower at the base of the large, o ate leaf
i unu ual with the long ovary cur ed I 0°. [f the
leaf i pendent, the flo er i r upinate; if the leaf
i horizontal , the flo er i reclining with th ynepal uppermo t and erect. The dor al
pal i
broadly o ate and con a
with 16 or I
in .
The ovate n epal i onca e b all beneath the
lip; the petal are broad ith fi e
in ; and the
lip i tran er el trilobed ith the ape broad.l
rounded and the lateral lobed rounded and r t.
Pleurothallis maduroi Luer, sp. nov. TYPE:
PANAMA. Chiriqui: Guadeloupe , May 1992, A.
Madura 18 (Holotype : MO). Fig. 12.
Inter species sectionis Macroph llae-Fa ci ulatae folio ovato grandi. flare rubro maximo,
palo dorsali concavo multiveno o , yn palo
mentoso, petalis late oblongi obtu i et Iabella
transverse trilobato. !obis infra medium rotundi
erectis distinguitur.
Plant large. presumably caespitose. Ramicaul
broken off above the base. erect?. more than 20
em long. with a tubular sheath near the middle.
Lear spreading? or pendent ?. coriaceou . ovate.
acute, 13 em long. 7 em wide, the ba e e ile.
deeply cordate . Inflorescence a ingle. large. red
flower borne on top of the leaf fro m a reclining
spathe 2.5 em long : peduncle ca. I 0 mm long
~ithin the spathe; floral bract 8- 10 mm long: pedtcel 15 mm long ; ovary 15 mm long. arcuate
180°; sepals glabrous. the dar al sepal ovate. ob-
D
.
.
.
.
2 em
5cm
lcm
1g. 12. Pleurothalli maduroi Luer.