Lymania involucrata (Bromeliaceae: Bromelioideae), a new ornamental species from Bahia, Brazil
Author
Souza, Everton Hilo De
Author
Aona, Lidyanne Y. S.
Universidade Federal do Recôncavo da Bahia (UFRB), Cruz das Almas, Bahia, Brazil.
Author
Souza, Fernanda V. D.
Embrapa Mandioca e Fruticultura (CNPMF), Cruz das Almas, Bahia, Brazil.
Author
Leme, Elton M. C.
Collaborative Researcher, Rio de Janeiro Botanical Garden, Rio de Janeiro, Brazil. & Research Associate, Marie Selby Botanical Gardens, Sarasota, USA.
text
Phytotaxa
2021
2021-03-04
489
2
209
215
http://dx.doi.org/10.11646/phytotaxa.489.2.9
journal article
4467
10.11646/phytotaxa.489.2.9
e29de56d-9fae-42e7-af75-ce62a749d601
1179-3163
5753628
Lymania involucrata
Leme & E.H. Souza
,
sp. nov.
(
Figs. 1–2
,
4
).
Diagnosis:
—
Lymania involucrata
is morphologically similar to
L. brachycaulis
, but can be differentiated by its longer peduncle (
8.5–11 cm
vs.
6–8 cm
), larger inflorescence (6.8–7.8 ×
7.5–9 cm
vs.
4–4.6 ×
4.2–5 cm
), larger primary bracts (4.2–7 ×
1.8–2.8 cm
vs.
3.8–4.2 ×
1.2–1.7 cm
), longer flowers (
34–41 mm
vs.
23–26 mm
), and longer sepals (
12–15 mm
vs.
9–11 mm
) with an acuminate apex (
vs.
acute and apiculate).
Type
:—
BRAZIL
.
Bahia
:
Igrapiúna
,
RPPN
Ouro
verde,
Reserva da Michelin
,
Mata da Vila
5, 13˚49’20.3”
S
, 39˚12’13.4”
W
,
35 m
.
elev.,
28 December 2019
,
E
.
H
.
Souza 214
(
holotype
HURB 25815
!)
.
Plant
epiphytic, propagating by stolons
12–17 cm
long, flowering
ca
.
25 cm
high.
Leaves
16–20 in
number, chartaceous, arcuate, forming a funnelform rosette, green or purple-green adaxially and the abaxial surface purple;
sheath
elliptic, 8.3–11 ×
3.8–5 cm
, minutely brown-lepidote on both sides;
blade
linear, narrowed and canaliculate toward the base, 19–25 ×
1.7–2.8 cm
, inconspicuously white lepidote on both sides, apex attenuate then apiculate, margins densely to subdensely spinulose; spines
ca
.
0.5 mm
long, green, antrorsely uncinate,
3–7 mm
apart.
Inflorescence
(fertile part) corymbose, compound, once-branched, 6.8–7.8 ×
7.5–9 cm
, distinctly visible above leaf tank but not distinctly separated from it;
peduncle
erect, 8.5–11 ×
0.4–0.6 cm
, pale-green, glabrous, about equaling the leaf sheaths;
peduncle bracts
longer than the internodes, ovate, apex acuminate, whitish, inconspicuously and sparsely spinulose, 2–2.8 ×
1.4– 1.6 cm
, the upper ones involucral, resembling the primary bracts;
primary bract
ovate to lanceolate, apex acuminate, slightly recurved, 4.2–7 ×
1.8–2.8 cm
, the basal ones distinctly exceeding the branches, involucral, divergent with the branches, membranaceous, finely nerved, coral-red, inconspicuously and sparsely white lepidote to glabrous, margins inconspicuously and sparsely spinulose, spines less than
0.5 mm
long;
primary branches
10–16 in
number, suberect to slightly divergent,
3–4 cm
long, 2–3-flowered.
Flowers
34–41 mm
long, densely distichously arranged;
floral bracts
linear,
5 mm
long, membranaceous, entire, sparsely covered by branching trichome;
sepals
slightly asymmetrical with an inconspicuous membranaceous wing distinctly shorter than the midnerve, 12–15 ×
4–4.4 mm
, coral-red toward the apex, connate at the base for
6–7 mm
, alate-bicarinate toward the base with keels decurrent on the ovary, sparsely lepidote with long fimbriate trichomes, lobes triangular, apex acuminate, slightly incurved;
petals
subspathulate, narrowly obtuse-cucullate, 26–30 ×
5–5.4 mm
, free, erect at anthesis, white, exappendiculate, bearing well developed acicular callosities near acuminate the free portion of the filaments.
Stamens
included;
filament
flattened, erect, whitish,
16–17 mm
long, the antepetalous ones adnate to the petals for
ca.
12 mm
, distinctly dilated toward distally, the antesepalous ones free, inconspicuously dilated distally;
anther
narrowly oblong,
ca
.
6 mm
long, base bilobed, apex apiculate, dorsifixed near the middle.
Pistil
exceeding the stamens;
ovary
broadly obovoid, whitish, 8–9.2 ×
7–8 mm
, bearing 7 to 8 sharply pronounced alate keels, sparsely and inconspicuously lepidote with filamentous trichomes;
epigynous tube
ca
.
1 mm
long, crateriform;
placentation
apical;
ovules
many, apiculate;
style
erect, whitish,
1.8– 2.2 cm
long;
stigma
conduplicate-spiral, subcapitate, stigmatic blades shortly lacerate, sparsely and inconspicuously papillose.
Fruit
subglobose, pronouncedly winged, 18–22 ×
12–14 mm
.
Seeds
not seen.
FIGURE 1. A–B.
Geographic distribution of
Lymania involucrata
,
L. brachycaulis
and
L. corallina
.
C.
Lymania involucrata
in bloom, showing its habit. Photos: A. Qgis software and Google Earth. B. Google Earth. C. by Kevin Flesher.
Paratype
:
—
BRAZIL
.
Bahia
:
Igrapiúna
,
Michelin
,
Vila
5, 13
o
49’15” S,
39
o
12’14” W
,
10 June 2011
,
A
.
G
. Coelho 69
(
RB
565888!). Photo available at http://jabot.jbrj.gov.br/v3/visualizadorimagem.php?siglacolbotorigem=
RB
&codi gobarras=00754117
.
Etymology
:
—
The specific epithet is a reference to the well-developed involucral bracts of the inflorescence, which are an unusual characteristic in the genus and easily allow the identification of the species.
Phenology
:—This new species was found flowering in its habitat from August to October. It bloomed in cultivation in September in Embrapa (BGB Bromélias collection). Flowers were observed opening at 5 am and closing at 5 pm.
Distribution and habit
:
—
Lymania involucrata
is known only from the municipality of Igrapiúna,
Bahia State
, where it grows in a typical Atlantic Rain Forest fragment of southern
Bahia
. The area was deeply affected by selective timber exploration in 1960 to 1970. However, it was then transformed in a private protected area (Reserva Particular do Patrimônio Natural – RPPN ‘Ouro Verde’), where the small population of
L. involucrata
is constituted of few individuals growing as an epiphyte about
1 m
above the ground on slim tree trunks, in a shady and humid forest environment.
Sympatry of
L. involucrata
in relation to their morphological relatives was not observed. While this new species is known only from the region of Igrapiúna,
L. brachycaulis
is restricted to the county of Camamu and
L. corallina
(
Beer, 1856: 272
)
Read (1984: 213)
occurs southward, in forests (‘Mata de Restinga’) associated to the sandy coastal plains (
Fig. 1
).
FIGURE 2.
Lymania involucrata
Leme & E.H. Souza.
A.
Detail
of leaf rosette and the inflorescence.
B.
Habit.
C.
Leaf in abaxial view.
D.
Inflorescence.
E.
Floral bracts (arrows).
F.
Abaxial view of the bracts (
bb.
upper peduncle bract.
db.
basal primary bract.
sb.
upper primary bract.
pb.
basal peduncle bract).
G.
Basal branch (arrows).
H.
Flower and floral parts. (
fl.
flowers.
ov.
ovary in cross section.
se.
sepals.
pe.
petals.
an.
androecium.
st.
style
and stigma).
I.
Stigma detail. Photo: E.H. Souza. Bars: B–D = 5 cm; C, E–H = 2 cm; I = 1 mm.
Conservation status:
—
This new species is only known from its
type
locality which is situated inside a private protected area (RPPN ‘Ouro Verde’) owned and maintained by the company Michelin. The GeoCAT (geocat.kew.org) estimated the extent of the occurrence of
L. involucrata
as about
0.993 km
2
, while its area of occupancy is 0.310 Km² (AOO), so classifying the species as critically endangered (CR) according to the criteria adopted by IUNC (2020).
Observations:
—
Lymania involucrata
is morphologically related to
L. brachycaulis
(
Fig. 3A–D
) and
L. corallina
(
Fig. 3
E-J), but can be distinguished from them by the much larger involucral (upper peduncle bracts) and primary bracts (4.2–7 ×
1.8–2.8 cm
vs
. 3.8–4.2 ×
1.2–1.7 cm
in
L. brachycaulis
and 3.8–4 × 1.0–
1.5 cm
in
L. corallina
. The inflorescence of
L. involucrata
has a higher number of flowers (48–60
vs
.
28–35 in
L. brachycaulis
and
18–26 in
L. corallina
), which are longer (
3.4–4.1 cm
vs
.
2.3–2.6 cm
in both species). Sepals are also longer in
L. involucrata
(
1.2–1.5 cm
) and have acuminate apex, while in
L. brachycaulis
sepals are
0.9–1.1 cm
in length with attenuate then apiculate apex, and in
L. corallina
they are
0.6–0.8 cm
in length with acute apex.
Other characteristics that distinguish the new species from the close relatives are its more numerous leaves (12–20
vs
.
5–8 in
L. brachycaulis
and
6–10 in
L. corallina
), as well as its
ca.
8 cm
long peduncle, which is longer than that of
L. brachycaulis
(
ca
.
6 cm
long) and shorter than that of
L. corallina
(
ca.
12 cm
long).