Rubiacearum Americanarum Magna Hama Pars XXVII: Six New Species and a New Taxonomic View of Posoqueria

2011·12.2 MB·English

by  Charlotte M Taylor

Rubiacearum Americanarum Magna Hama Pars XXVII: Six New Species
and a New Taxonomic View of Posoqueria
Charlotte M. Taylor
Missouri Botanical Garden, P.0. Box 299, St. Loui-, Mi—-ouri 63166-0299, U.S.A. Author for
correspondence: [email protected]
Bany Hammel
Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri 63166-0299, U.S.A., and Institute
Nacional de Biodiversidad (INBio), Apdo. 22-3100, Santo Domingo, Heredia, Costa Rica.
[email protected]
Roy E. Gereau
Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri 63166-0299, U.S.A.
[email protected]
Abstract. The Neotropical genus Posoqueria Aubl.
nism and others that apparently lack these features,
androecium that apparently lacks the pollen catapult
length and symmetry of the filaments, and fruit
Resumen. El genero neotropical Posoqueria Aubl.
de la corola, el largo y la simetrfa de los filamentos y
sinonimo de P. latifolia (Rudge) Roern. & Schult ,
Central y el noroeste de America del Sur, nueva-
mente descritas aquf: P. chocoana C. M. Taylor de
tierra baja humeda de Panama al noroeste de
that apparently lacks the pollen catapult mechanism;
P. grandifructa Hammel & C. M. Taylor of lowland
mechanism, relatively long unequal filaments, and
Novon 21: 118-132. Published on 7 April 2011. doi: 10.3417/2009127
Volume 21, Number 1 Taylor et al. 119
2011 New Species of Posoqueria
catapulta de polen; P. grandifructa Hammel & C. M.
Taylor de tierra baja de Nicaragua y Costa Rica tiene
(Rudge) Roern. & Schult., which is also occasionally
polen; P. longifilamentosa C. M. Taylor de tierra baja
Delprete (2009), and in the Henriquezieae subtribe
Posoqueriinae by Robbrecht and Manen (2006).
Hammel & C. M. Taylor de tierra baja de Nicaragua y Molecular data have indicated that Posoqueria is
aparentemente no tiene el mecanismo de catapulta
Henriquezieae, IUCN Red List, Ixoroideae, Nicar- in their analysis).
including Hutchinson (1915), Beach (1983), and Puff
et al. (1995), and was recently summarized also by
Delprete (2009). who illustrated in detail the
longest filaments, the two lateral stamens have
the stems; its terminal, shortly cymose inflorescences ellipsoid structure (Hutchinson, 1915: fig. 100; Puff
with the bracts small or sometimes only irregularly et al., 1995: fig. 13; Delprete, 2009: figs. 3, 4) by the
directly over the mouth of the corolla tube. In this
greater length, and all of the filaments are apparently
(Puff61et al., 1995)/ its completely or occasionally
(Hutchinson, 1915) in one or several clumps, but
catapults the pollen “out to some distance” (Hutch¬
inson, 1915: 306). In this action, the four anthers
The flowers are nocturnal and fragrant, and pollinated
by sphingid moths (Bawa & Beach. 1983; Beach.
1983). Delprete (2009) noted that the corolla lobes lying on or near the corolla lobes, while the shortest
by Burger and Taylor (1993), but has not been
s in use until now in C
121

Taylor et al.
124

126 Novon
Taylor et al. 127
(YU Blab[iii]+
This
14 cm, apex acute to acuminate with tips to 0.8 cm.
of P. of P.