downloads/Killip 2.pdf - Passion Flowers

578 FIELD MUSEUM OF NATURAL HISTORY BOTANY, VOL. XIX
Ega. Under D. acuminata a single collection is cited, Spruce 1320-3,
from the forests of Barra. In the Flora Brasiliensis the Martius
specimen is cited under D. acuminata, not under D. retusa. There is
no description of the fruit of D. retusa in the description in the Flora
Brasiliensis, but the fruit of D. acuminata is described in much detail,
and the accompanying figure of this species shows a leaf and a single
large fruit, which agree perfectly with the description. Both of the
Spruce specimens, the types of these two species, are without fruit.
Hence it is probable that the Martius specimen, which I have not
seen, is a plant in fruit and is the original of the drawing in the Flora
Brasiliensis, and that its citation under D. retusa in the Transactions
was an inadvertent error.
The lateral nerves of the leaf figured in the Flora Brasiliensis as
D. acuminata are much more ascending than in the Spruce type and
they irregularly anastomose toward the margin, in these respects
resembling D. Wallisii. Perhaps too much importance has been
given to the matter of nervation, for there is some variation in the
specimens I am referring to D. Wallisii, even in individual specimens.
1 am assuming for the present that the illustration in question applies
to D. acuminata.
5. Dilkea Wallisii Mast, in Mart. Fl. Bras. 13, pt. 1: 622. pi. 106,
f. 3. 1872.
High-climbing, woody vine, glabrous throughout; petioles 1.5 to
3.5 cm. long, glandless or bearing near apex 2 sessile, oblong glands
2 to 2.5 mm. long; leaves variable in outline, broadly ovate, ovateoblong,
or oblong-oblanceolate, 12 to 15 cm. long, 5 to 10 cm. wide,
abruptly acuminate at the rounded apex, rounded or cuneate at
base, coriaceous, lustrous, the lateral nerves ascending, irregularly
anastomosing near the margin; flowers white, in sessile glomerules
or short-spicate, the pedicels 1 to 1.5 cm. long; sepals 4, at first
united below middle into a cylindric funnel-shaped tube, soon or
rather tardily separating to the base, oblong, 2.5 to 3 cm. long, the
2 outer about 1 cm. wide, the 2 inner about 5 mm. wide; petals 4,
about as long as the sepals; corona in 2 series, the outer filamentose,
the filaments narrowly ligulate, 2 to 2.2 cm. long, the inner membranous
at base, filiform below the middle, spatulate-dilated in the
upper half and margined with floccose, crispate threads; stamen
filaments filiform, 2 to 2.5 cm. long; anthers narrowly linear; ovary
ovoid, short-stipitate, the stipe 3 to 4 mm. long; fruit depressedspherical,
up to 2.5 cm. long, and 4.5 cm. in diameter.