Psychotria milnei

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Calycosia milnei
• Calycosia aneitensis
• Calycodendron milnei

Sources: Wikidata

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. Within the order Gentianaales, it is classified under the family Rubiaceae. It is specifically identified by the genus Psychotria, with its species designation being milnei.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant is primarily found within the specific regions of the Southwestern Pacific. Its natural habitat includes the island nation of Fiji, where it grows in local ecosystems. Additionally, the species can be located within the archipelago of Vanuatu. These two locations represent the known geographical extent for this particular medicinal species. Therefore, its distribution is limited to these specific island territories in the Pacific Ocean.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Psychotria milnei is characterized by its distinct structural growth patterns and survival strategies within its ecological niche. Based on its morphological development, this species exhibits a dual classification of life forms, functioning primarily as a phanerophyte, where its permanent buds are located well above the ground on woody stems, allowing it to maintain a significant vertical presence. Additionally, its life history can be categorized under the nanophanerophyte life form, indicating a growth habit where the reproductive and vegetative buds are held at a relatively low height above the substrate. This combination of life forms enables the plant to navigate its environment through stable, perennial growth, utilizing its elevated bud placement to survive seasonal changes and competitive pressures within its habitat.

Life form :

nanophanerophyte

Life form :

phanerophyte

Morphology

The morphology of Psychotria milnei is characterized by a growth form classified as a shrub, exhibiting a predominantly woody structure. It is a terrestrial species, functioning as an independent organism rather than acting as a parasite or an epiphyte. In terms of its structural habit, the plant is self-supporting, lacking the climbing or liana-like tendencies found in vines or obligatory climbers, and it maintains a stable presence in its habitat without requiring external support.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Parasite :

independent

Woodiness :

woody

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Psychotria milnei has 1 reported plant parts identified across 1 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include stem.

Stem

1. Planta medica

Chemicals

Psychotria milnei has 2 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include Quadrigemine C, Vatamine.

Quadrigemine C

1. Planta medica

Vatamine

1. Planta medica

Preparations

Psychotria milnei has 2 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include aerial parts, stem bark.

Aerial parts

1. Planta medica

Stem bark

1. Planta medica