downloads/Killip 1.pdf - Passion Flowers

24 FIELD MUSEUM OF NATURAL HISTORY BOTANY, VOL. XIX
compound; bracts small and dissitate or large and involucrate; flowers
hermaphrodite (in American species), regular, often highly colored;
calyx tube patelliform, campanulate, funnelform, or cylindric; sepals
5, fleshy or membranous, often dorsally corniculate or aristate just
below the apex; petals 5, membranous, alternate with the sepals,
sometimes wanting; corona of 1 to several series of distinct or more
or less united filaments, rarely tubular; operculum borne within
(or below) the corona, membranous, flat or plicate, entire, lacerate, or
filamentose, rarely wanting; nectar ring an annular ridge within (or
below) the operculum, sometimes wanting; limen borne close to
the base of the gynophore, annular or cupuliform, sometimes wanting;
stamens 5 (in American species), the filaments monadelphous in a
tube closely adnate to the gynophore, distinct above, the free filaments
at first erect, at length reflexed, attached to the back of the
anther near its middle; anthers linear, ovate, or oblong, 2-celled;
ovary globose, ovoid, or fusiform, borne on a gynophore, which is
elongate in most species, very short or wanting in a few; styles 3,
distinct, or united at the base, cylindric or clavate; stigmas capitate,
orbicular, or reniform; fruit indehiscent, baccate, globose, ovoid,
or rarely fusiform, containing a mucilaginous pulp; seeds more or
less compressed, reticulate, punctulate, or transversely grooved,
borne on 3 parietal placentae.
Type species: Passiflora incarnata L.
SYNOPSIS OF SUBGENERA
I.
Apodogyne Killip, subgen. nov.
Herbaceous vine; petioles minutely biglandular; flowers fascicled,
very small; calyx patelliform; operculum plicate; ovary sessile, terete;
stamens borne on calyx at base of ovary; styles united at the base,
projecting from the center of the top of the ovary; fruit very
small; seeds transversely sulcate, the ridges rugulose. Type: P.
multiflora. No. 1.
II.
Astephia Killip, subgen. nov.
Herbaceous vine; petioles glandless; calyx campanulate; petals
clawed at base; corona 1-ranked; operculum and limen none; styles
united at base, projecting from center of top of ovary; seeds transversely
sulcate, the ridges rugulose. Type: P. penduliflora. No. 2.
stat. nov. Passi-
III. Tryphostemmatoides (Harms) Killip,
flora sect. Tryphostemmatoides Harms in Engl. & Prantl, Pflanzenfam.
ed. 2, 21: 500. 1925.