Piperales


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Piperales

[′pip·ə′rā·lēz]
(botany)
An order of dicotyledonous herbaceous plants marked by ethereal oil cells, uniaperturate pollen, and reduced crowded flowers with orthotropous ovules.
References in periodicals archive ?
f AY095465 Piperales Aristolochiaceae Aristolochia macrophylla Lam.
Las hipotesis filogeneticas mas recientes de las angiospermas proponen a miembros de los ordenes Piperales, Ceratophyllales, Laurales o Magnoliales como posibles grupos hermanos.
The angiosperms closest to the origin of monocots include Chloranthaceae and the Piperales (Aristolochiaceae, Lactoridaceae, Piperaceae, and Saururaceae), all of which do have vessels.
However, they thought highly of their new informally named group, even though they may have been afraid to name it formally: "An unexpected but apparently robust grouping is the paleoherb clade, including not only monocots and Nympheales but also Piperales, Lactoris, and Aristolochiaceae" (Donoghue & Doyle, 1989a: 37).
Aristolochiaceae, the only family of Piperales with P-type plastids, is of special interest, because it is also the single known eumagnoliid taxon that contains species with form Plc plastids; i.
The Piperales and the Monocots: Altemative hypotheses for the origin of monocotyledonous flowers.
Although it has been suggested that the Chloranthaceae are related to the Piperales (e.