Novelties in “ incertae sedis ” Vriesea (Bromeliaceae: Tillandsioideae): Redescriptions, new combinations and nomenclatural revision
Author
Kessous, Igor M.
Programa de Pós-Graduação em Ciências Biológicas (Botânica), Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, São Cristóvão, CEP 20940 - 040, Rio de Janeiro, RJ, Brazil
Author
Costa, Andrea F.
Departamento de Botânica, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, São Cristóvão, 20940 - 040, Rio de Janeiro, Brazil
text
Phytotaxa
2023
2023-02-27
585
2
71
101
http://dx.doi.org/10.11646/phytotaxa.585.2.1
journal article
53472
10.11646/phytotaxa.585.2.1
f648d987-0485-4e81-a650-dec255e19aa8
1179-3163
7681555
3.2
Vriesea dissitiflora
(C.H.Wright)
Mez (1896: 604)
Basionym:
—
Tillandsia dissitiflora
C.H.
Wright (1871: 54)
.
Type
:
—
CUBA
.
Pinar del Rio
,
Sierra
de los
Organos
,
Wright
3276
(
holotype
GH! [in part.], isotypes K!, P!, G! GOET!).
=
Vriesea erici
Harms (1935: 533)
.
Type
:
—
CUBA
.
Ensenada de Vega Cuchilla
,
Sierra del Sitio Santo Tomas
,
Pinar del Rio
,
12 June 1923
,
Ekman
16670
(
holotype
B!).
Description:—Plant
saxicolous, flowering
1−1.5 m
high.
Leaves
forming an infundibuliform rosette;
sheath
oblong, 15−20 ×
12 cm
, lepidote on both surfaces, denser toward the base;
blade
narrowly linear-oblong, triangular toward the apex, 80−86 ×
6.5−8.5 cm
, apex acute to acuminate, sparsely lepidote on both surfaces.
Inflorescence
compound, once-branched, ca. 15-flowered, ca.
120 cm
, lax, erect;
peduncle
erect, ca.
80 cm
long and
3.8 mm
in diameter (
in sicco
), sparsely lepidote;
peduncle bracts
erect with suberect apex, remote, narrowly ovate to narrowly triangular, 35–50(–110) ×
11 mm
, inconspicuously lepidote;
main axis
sinuose, ca.
30 cm
long,
8.2–10.5 mm
in diameter, sparsely lepidote;
primary bracts
ovate, 30–40 ×
20 mm
, sparsely lepidote;
spikes
ca.
23 in
number (including the terminal one),
25–30 cm
long, in an angle of 10–20º to the main axis, 7–8 flowered, with 1–2 sterile bracts at the apex;
rachis
straight,
12–13 cm
long, ca.
3 mm
in diameter (
in sicco
).
Floral bracts
ovate, 20–30 ×
15 mm
, carinate at the apex, equaling or slightly exceeded by the sepals, lepidote on both surfaces.
Flowers
33–35 mm
long,
10–12 mm
apart, secund, suberect;
sepals
narrowly oblong-elliptic, 20−23 ×
7−11 mm
, slightly carinate, symmetric, lepidote on the adaxial surface;
petals
ligulate, apex obtuse to rounded, 27–30 ×
8.2–8.9 mm
;
petal appendages
ca. 6 ×
1.5 mm
, adnate to the base of the petal, entire, with free lobe attenuate-acute;
stamens
included;
filament
ca.
8 mm
long, adnate to the base of the petals for
5.5 mm
;
anther
dorsifixed near the base, ca. 8.3 ×
1.5 mm
, suberect;
ovary
cylindrical, ca.
5 mm
long and
3.5 mm
in diameter.
Fruits
unknown.
Distribution:
—This species grows saxicolous in western
Cuba
, ca.
400–500 m
above sea level (
Smith & Downs 1977
).
Taxonomic and nomenclatural notes:
—
Wright (1871
–1872) did not specify the location of the herbarium of the
type
collection, although he mentioned: “
T. excelsa
Gris.
proparte”.
Smith & Downs (1977)
assumed that the material in GH is the
type
, since it is the only mixed specimen, which also includes material of
T. excelsa
as confirmed by Jason Grant in 1996. The floral morphology of
V. dissitiflora
is related to the Brazilian species of the former
Vriesea
sect.
Xiphion
(because of the secund flowers), as in the case of
V. longicaulis
(Baker)
Mez (1894: 542)
.
Grant (1995a
,
1995b
) indicated that this taxon could possibly be placed in
Werauhia
, which has a convergent geographical distribution. However, we maintain this taxon in
Vriesea
, especially because of the acute-acuminate shape of its petal appendages (sketch of Lyman Smith on the specimen
Wright 3276
[GH]), contrasting with the dactyloid appendages in
Werauhia
. Important traits for generic delimitation were not found in the specimens analyzed.
Etymology:
—The specific epithet “
dissitiflora
” (loosely flowered) refers to the long internode between the flowers.
Representative Specimens Examined:
—
CUBA
.
Pinar del Rio
,
Sumidero
,
24 August 1912
,
Shafer
1
3476
(
NY
)
;
Nothern
slope of
Pan de Guajaíbon
,
La Mulata
,
16 May 1953
,
Alain
&
Acuña
3017
(US,
NY
)
.