Revision of Passiflora Subgenus Decaloba ... - Passion Flowers

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of the species with dish-shaped flowers that were either ebracteate or possessed
small bracts and a five-lobed calyx in section Cieca. However, he mistakenly
placed individuals that we now know possess five petals and five sepals (a ten-
lobed calyx, according to de Candolle) in the section. He did not place P.
lancifolia Ham. in a section because he felt that the species was not sufficiently
known. Additionally, he placed Passiflora viridiflora in the section Psilanthus and
accepted Jussieu’s placement of the species in the genus Tacsonia (Candolle,
1828). In the same year, Reichenbach (1828) raised section Decaloba DC. to
the rank of subgenus. Additionally, he placed Passiflora viridiflora in the genus
Synactila.
Max Joseph Roemer (1846) published a monograph of the Passifloraceae and
raised de Candolle’s sections to the rank of genera. Thus, most of the apetalous
species discussed above were once again placed in their own genus, though
Roemer repeated de Candolle's mistake and also placed petalous species in the
genus Cieca. He placed P. lancifolia in the genus Decaloba and recognized
Psilanthus viridiflora DC. (Roemer, 1846). Soon after the publication of
Roemer’s monograph, Joseph Dalton Hooker supported de Candolle’s broad and
more conservative concept of the genus in his treatment for Genera plantarum
(Hooker, 1867). In the interim, another apetalous species belonging to
supersection Cieca, P. tenuiloba Engelm., was described by Georg Engelmann
in the Boston Journal of Natural History (Gray, 1850).
In 1871, Maxwell Masters published a preliminary taxonomic paper on the
Passifloraceae in the Transactions of the Linnaean Society that would be