Aristolochia emiliae Santana Mich. & Solís
Descripción
Geophytic herb, procumbent or erects, perennial subterranean organs (not seen); stems
with subterranean internodes (not seen); aerial internodes geniculate, (1.5-)2-3 cm long,
sparsely covered with septate trichomes. Petioles terete, (0.3-)0.4-0.9(-1) x 0.4-0.5 cm,
green, sometimes purple-pink, sparsely covered with septate trichomes. Leaf blades
trilobate, like anchor shape discolorous, base hastate, apex caudate, (2.5-)5-8.5(-10) x (1-
)1.5-3.5(-4.5) cm; palmatinerved, actinodromous, margin entire; adaxial leaf side green,
with septate trichomes, 0.7-1 mm long, sparse and with acroscopic orientation; abaxial leaf
side pale green, (veins pale yellow) with dense septate trichomes, especially along the veins.
Flowers axillary, solitary or placed in a racemose inflorescence growing at the base, flower
pedicels 5-8 x 1 mm. Bract lanceolate, 0.5-0.8 x 0.3-0.5 cm. Perianth geniculate, 2-2.8 cm
long, white-yellowish, becoming purple toward the limb, veins brown-orange, sparce septate trichomes along the veins; utricle obloid, 0.9-0.11 x 0.08-0.09 cm, internal surface not seen; tube bent 130°-180° basally straight, widened toward the limb, 1.3-2.1 x 4-5 mm, internal surface (not seen); limb orbicular, subcordate at the base, apiculate at the apex, 2-3.5 x 2-2.2 cm, deep purple red area covered by white uncinate trichomes 0.3-0.4 mm long, in lateral view cup-shaped; throat elliptic, dark-purple, glabrous; syrinx infundibuliform, eccentric, 3-3.5 mm long, 2-2.5 mm wide at base and 1 mm wide at apex. Gynostemium coroniform, stipitate, 2-3 x 1-2 mm; stipe, 0.5-1 mm long, stigmatic lobes 5, 1-1.5 mm long, anthers 5, 1.5-2 mm long. Ovary inferior, lanceolate-ovate, 6 x 9 mm, with sparse septate trichomes. Fruit a capsule, ovoid, 2-3 x 1.7-2.5 cm, purple when young, brown yellow when mature, with septicidal dehiscence at the apex. Seeds deltoid, 5-6 x 4.5-5.5 mm, upper part black, lower part yellow-brown, with granular surface.A
with subterranean internodes (not seen); aerial internodes geniculate, (1.5-)2-3 cm long,
sparsely covered with septate trichomes. Petioles terete, (0.3-)0.4-0.9(-1) x 0.4-0.5 cm,
green, sometimes purple-pink, sparsely covered with septate trichomes. Leaf blades
trilobate, like anchor shape discolorous, base hastate, apex caudate, (2.5-)5-8.5(-10) x (1-
)1.5-3.5(-4.5) cm; palmatinerved, actinodromous, margin entire; adaxial leaf side green,
with septate trichomes, 0.7-1 mm long, sparse and with acroscopic orientation; abaxial leaf
side pale green, (veins pale yellow) with dense septate trichomes, especially along the veins.
Flowers axillary, solitary or placed in a racemose inflorescence growing at the base, flower
pedicels 5-8 x 1 mm. Bract lanceolate, 0.5-0.8 x 0.3-0.5 cm. Perianth geniculate, 2-2.8 cm
long, white-yellowish, becoming purple toward the limb, veins brown-orange, sparce septate trichomes along the veins; utricle obloid, 0.9-0.11 x 0.08-0.09 cm, internal surface not seen; tube bent 130°-180° basally straight, widened toward the limb, 1.3-2.1 x 4-5 mm, internal surface (not seen); limb orbicular, subcordate at the base, apiculate at the apex, 2-3.5 x 2-2.2 cm, deep purple red area covered by white uncinate trichomes 0.3-0.4 mm long, in lateral view cup-shaped; throat elliptic, dark-purple, glabrous; syrinx infundibuliform, eccentric, 3-3.5 mm long, 2-2.5 mm wide at base and 1 mm wide at apex. Gynostemium coroniform, stipitate, 2-3 x 1-2 mm; stipe, 0.5-1 mm long, stigmatic lobes 5, 1-1.5 mm long, anthers 5, 1.5-2 mm long. Ovary inferior, lanceolate-ovate, 6 x 9 mm, with sparse septate trichomes. Fruit a capsule, ovoid, 2-3 x 1.7-2.5 cm, purple when young, brown yellow when mature, with septicidal dehiscence at the apex. Seeds deltoid, 5-6 x 4.5-5.5 mm, upper part black, lower part yellow-brown, with granular surface.A
Fructificación
NovA
Floración
Sep–NovA
Ejemplar revisado
MEXICO. Jalisco: Mun. La Huerta, Estación de Investigación, Experimentación y Difiusión Chamela, UNAM, 150 m. 29 September 1982, J. A. Solís-Magallanes 3849, Emily J. Lott ibid 1532;1699 (MEXU). A
Elevación
100 – 200 mA
Ecología y Hábitat
Aristolochia emiliae is known only from the type locality in tropical deciduous forest with Lysiloma microphyllum, Bursera instabilis, B. heteresthes, Jatropha malacophylla, J. standleyi, Croton pseudoniveus, Cordia alliodora, Heliocarpus pallidus, Trichilia trifolia subsp. Palmeri, Lonchocarpus eriocarinalis, Guettarda elliptica, Spondias purpurea, Caesalpinia coriaria, Ceiba aesculifolia, Thouinia paucidentata, Ficus cotinifolia, Bernardia spongiosa, Crescentia alata.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
This species can be distinguished because the of the anchor–shaped leaves, the orbicular limb, subcordate at the base, apiculate at the apex, deep purple red area, covered by white uncinate trichomes and the throat oblate principally.A