The taxonomic history of Prunus is long and complicated, in part due to the economic value of its fruit crops and also the ease with which some species hybridize. Here, Prunus is circumscribed in its broad sense based on the argument that when viewed on a worldwide scale, the morphologic discontinuities among the segregate genera diminish and they overlap with one another. Included here are species that have at times been placed in the genera Amygdalus, Armeniaca, Cerasus, Laurocerasus, Padus, and Persica.
At the species level, Prunus has been the object of the usual combining and splitting common among taxonomists with different philosophies and opinions. In particular, over-reliance on the indument of various vegetative and floral parts has led to the naming of numerous species and infraspecific taxa. Similarly, too much has been made of fruit colour and palatability in naming taxa of Prunus. It is very likely that, as molecular and genetic data are analyzed and, more importantly, correlated with morphological data, circumscriptions will be redrawn and the number of Prunus species will be reduced[].

Common Name:

General Information

Prunus malayana is a tree that can grow up to 30 metres tall. The bole can be unbuttressed or with short buttresses[].
The tree is harvested from the wild for its wood, which is used locally and sometimes traded.
The plant is classified as 'Least Concern' in the IUCN Red List of Threatened Species(2013)[].

Known Hazards

The plant (especially the seed and young shoots) contains cyanogenic glycosides, especially amygdalin and prunasin. When injested, these compounds break down in the digestive tract to release cyanide. Used in small quantities in both traditional and conventional medicine, this exceedingly poisonous compound has been shown to stimulate respiration, improve digestion, and promote a sense of well-being[]. It is also claimed by some to be of benefit in the treatment of cancer - though this claim has been largely refuted.
In larger concentrations, however, cyanide can cause gasping, weakness, excitement, pupil dilation, spasms, convulsions, coma and respiratory failure leading to death[].
The fruits and flowers of most members of this genus generally have low or very low concentrations of this toxin, though the seeds and young shoots can contain much higher levels.
The levels of toxin can be detected by the level of bitterness:- for example sweet tasting almond seeds are a major food crop and are often eaten in quantity, whilst bitter tasting almond seeds are used as a flavouring (in marzipan for example) but are not usually eaten on their own.
In general, it can be considered safe to eat any fruit or seed from species in this genus that either have a sweet flavour or are slightly bitter. Great caution should be taken, however, if the flavour is moderately to very bitter[].

Botanical References

Range

Southeast Asia - Peninsula Malaysia.

Habitat

Dense primary forest, and also in the more open areas of secondary growth; at elevations from 100 - 1,200 metres[].

Properties

Conservation Status	Least Concern
Other Uses Rating
Habit	Tree
Height	24.00 m
Pollinators	Insects
Cultivation Status	Wild

Cultivation Details

Not known

Edible Uses

None known

Medicinal

None known

Other Uses

The heartwood is pink to red brow; the sapwood is somewhat paler. The texture is moderately fine to moderately coarse and even; the grain is straight or wavy or deeply interlocked. The wood is soft to hard, light to slightly heavy. It is suitable for light to medium construction under cover. Other uses include general planking, laminated boards, domestic flooring, general utility furniture, veneer and plywood[].

Propagation

Seed - requires 2 - 3 months cold stratification and is best sown in a cold frame as soon as it is ripe[]. Sow stored seed in a nursery seedbed as early in the year as possible[]. Protect the seed from mice etc. The seed can be rather slow, sometimes taking 18 months to germinate[]. Prick out the seedlings into individual pots when they are large enough to handle. Grow them on until large enough to plant out
Cuttings of half-ripe wood with a heel in a frame[, ].
Softwood cuttings from strongly growing plants in a frame[].
Layering

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