New Taxa from the Mamberamo River of Papua Province, Indonesia: Ardisia lammersiana (Myrsinaceae) and Psychotria leptothyrsa Var. Defretesiana (Rubiaceae)
2009; Harvard University Press; Volume: 14; Issue: 2 Linguagem: Inglês
10.3100/025.014.0209
ISSN1938-2944
Autores Tópico(s)Plant Parasitism and Resistance
ResumoArdisia lammersiana (Myrsinaceae) and Psychotria leptothyrsa var. defretesiana (Rubiaceae) are described from the Conservation International Mamberamo River Expedition. The new plants are locally common understory shrubs from tributaries of the lower drainage, occurring primarily in seasonally flooded forest. Among the New Guinea species in subgen. Akosmos, Ardisia lammersiana is easily identified by its long peduncles (7.0–10.5 cm), long pedicels (13–20 mm), and white flowers. The second novelty (Psychotria leptothyrsa var. defretesiana) is distinguished by its architectural form, obtuse leaf-blades, erect panicles, and 3–4-ridged pyrenes.
Referência(s)