Revision of Passiflora Subgenus Decaloba ... - Passion Flowers

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vein and one proximal to each lateral vein). Another variant occurs primarily in
Dominica and Martinique and possesses deeply trilobed leaves with wider, ovate
lateral lobes and deeply cordate bases. The leaves are not as large as the first
variant (ca. 5-8 cm wide), but possess four laminar nectaries in the same
positions as the entity in the Grenadines. The last variant occurs on several of
the Windward Islands and possesses trilobed leaves with ca. 10 laminar
nectaries. The nectaries are positioned near the leaf margin, creating crenations
where they appear. Additionally, the nectaries are commonly positioned proximal
to the lateral leaf veins, a very rare condition in the subspecies. All of these
Lesser Antillean forms possess the longest floral stipes and sepals in the
subspecies. In the Dominican Republic and Cuba there is an additional variant
that has unlobed leaves at all nodes. The leaves are exceptionally long for the
subspecies (>10 cm), more coriaceous and possess petiolar nectaries that are
wider and somewhat discoid, as opposed to the more cupulate or capitate
condition typical of the subspecies.
Passiflora suberosa ssp. suberosa is sympatric with three species in
supersection Cieca: P. pallida, P. lancifolia, and P. macfadyenii. It can be easily
separated from P. lancifolia and P. macfadyenii using both vegetative and
reproductive characters. The most obvious features are that the leaves of P.
macfadyenii and P. lancifolia are very densely pubescent with long, unicellular
curved trichomes, whereas P. suberosa ssp. suberosa appears glabrous (i.e.,
primarily microscopically antrorsely appressed-puberulent). The flowers of P.
macfadyenii and P. lancifolia are also tubular and possess bright red sepals.