Revision of Passiflora Subgenus Decaloba ... - Passion Flowers

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Steve Cafferty (pers. com.) of the Linnaean Plant Name Typification Project, the
lectotype of P. minima L. (designated by Killip 1938) is specimen 1070.20 (LINN).
The lectotype closely matches Linnaeus' diagnoses and the drawing in the
dissertation and possesses small flowers apparently lacking petals (as observed
on a microfiche of the herbarium). However, the lectotype of P. minima is a very
unusual example of the small-flowered entity, as the lack of petiolar nectaries in
this taxon is very rare.
Passiflora hirsuta L. has been the source of confusion for several taxonomists
of Passiflora, and under his treatment of Passiflora foetida var. moritziana
(Planch.) Killip ex Pulle, Killip (1938) discussed the problem. Linnaeus (1753)
cited several references in his treatment of P. hirsuta, often with accompanying
illustrations, that undoubtedly refer to P. foetida. However, he also referred to an
illustration by Plumier (pl. 88, in Description des plantes de l’Amérique, 1693)
that is clearly P. pallida. As in his other species descriptions, he also cites the
diagnosis and drawing in the 1745 dissertation by Hallman that shows a trilobed,
densely pubescent leaf with rather large petiolar nectaries that are positioned on
the distal half of the petiole and, thus, cannot be P. foetida as this species lacks
petiolar nectaries. The diagnosis in the 1753 edition of Species Plantarum is
unclear. However, in the 1745 dissertation Hallman states that the flowers of this
taxon are pale and small, the involucre is lanceolate, and the fruits are deep blue.
Hallman goes on to say that the taxon that he is describing is somewhat similar
to the next (P. foetida L.) but differs in that the flowers are opposite (paired) and
the involucre consists of only a single bract. Hallman is clearly describing one of