Revision of Passiflora Subgenus Decaloba ... - Passion Flowers

Additional Specimens Examined
332
Guatemala. –BAJA VERAPAZ: Hacienda Santa Rosa, now in the Estrada
family, type locality on old rd. from Pantín to Salamá (Rt. 5), ca. 4.5 km S of
Pantín, 21 km from Salamá, 5200 ft., MacDougal & Miley 637 (FLAS, MO);
Cuesta de Cachil, near Salamá, 1200-1600 m, Pittier 160 (US); Santa Rosa, von
Tuerckheim 1207 (G, GH).
Notes
Passiflora trinifolia is known only from Baja Verapaz, Guatemala. It is usually
easily distinguished from other members of supersection Cieca by its stiff and
rigid leaves and very small stature. Passiflora trinifolia has been confused with
P. eglandulosa, but several vegetative and reproductive characters can be used
to separate these taxa, as presented under the description of P. eglandulosa.
The most notable of these is the presence/absence of petiolar and laminar
nectaries, with P. trinifolia possessing 1-4 laminar nectaries and 1-2 petiolar
nectaries, and P. eglandulosa having neither laminar nor petiolar nectaries.
MacDougal (1992) found Passiflora trinifolia to be self-incompatible in the
greenhouse, as 33 attempts to self-pollinate it failed to produce fruits. However,
its sister species, P. eglandulosa, is self-compatible.