Englerophytum magalismontanum

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Englerophytum magalismontanum

From Wikipedia, the free encyclopedia

Transvaal milkplum

Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Ericales
Family:	Sapotaceae
Genus:	Englerophytum
Species:	E. magalismontanum
Binomial name
*Englerophytum magalismontanum* (Sond.) T.D.Penn.
Synonyms
Bequaertiodendron magalismontanum (Sond.) Heine & J.H.Hemsl. Chrysophyllum magalismontanum Sond. Pouteria magalismontana (Sond.) A.Meeuse

Englerophytum magalismontanum, commonly known as stamvrug, is an evergreen tree that mostly grows in rocky places. It has an extensive range, from northern KwaZulu-Natal northwards along the east coast and into the southern African interior, and northwards into tropical Africa.

Nomenclature

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E. magalismontanum was at various times in the past known under the names Bequaertiodendron magalismontanum (see: J. C. Bequaert), Pouteria magalismontana and Chrysophyllum magalismontanum. The specific name refers to the Magaliesberg from where the species was first described, and where it commonly occurs.

Description

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This tree is usually known by its Afrikaans name stamvrug ("stem fruit") which refers to its habit of bearing densely clustered fruit on the trunk and thicker branches (cauliflory), a common feature of this family. The fruit are tasty and sweet with very little pink flesh - they are rich in latex and are leathery-skinned. The seed is large, smooth and hard, and is covered with a soft membrane. Their bisexual flowers are similarly crowded on the trunk and branches, and smell strongly of fermenting honey.

Stamvrug trees at maturity may range from 1 metre tall on exposed dip slopes with very limited soil where they are prone to stunting by fire, to about 15 metres in the shelter of kloofs (gorges) with ample water and deep soil. Crowns are densely leafy and rounded, branched almost to the base, with leaves crowded at ends of branches, densely covered in golden-brown velvety hairs below, and often with a whitish indumentum above.

Relationships and associated species

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The species is a larval food plant for the butterfly Pseudacraea boisduvali trimeni. It is closely related to Englerophytum natalense (Sond.) T.D.Penn. and Mimusops zeyheri Sond. and is often found in association with the latter.

It belongs to the family Sapotaceae with some 35 genera and 600 odd species, that are mostly trees with leathery, entire leaves. The family is present throughout the tropics and subtropics. They are rich in latex and yield substances like gutta-percha and balatá.

Gallery

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Habit and habitat

Flower clusters

Ripe fruit

Leaf details: upper and undersides

References

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"Englerophytum magalismontanum". PlantZAfrica.com. Archived from the original on 2010-09-07. Retrieved 2010-01-12.
Dressler, S.; Schmidt, M. & Zizka, G. (2014). "Englerophytum magalismontanum". African plants – a Photo Guide. Frankfurt/Main: Forschungsinstitut Senckenberg.

Media related to E. magalismontanum at Wikimedia Commons

Taxon identifiers
Englerophytum magalismontanum	Wikidata: Q3642237 Wikispecies: Englerophytum magalismontanum APDB: 91479 CoL: 39TG9 EoL: 1145537 GBIF: 2888092 GRIN: 403375 iNaturalist: 468538 IPNI: 962758-1 IRMNG: 10251548 IUCN: 146188044 NCBI: 233692 Open Tree of Life: 904524 Plant List: kew-67442 POWO: urn:lsid:ipni.org:names:962758-1 SANBI: 3378-1 Tropicos: 50040419 WFO: wfo-0000949109
Chrysophyllum magalismontanum	Wikidata: Q39915756 APDB: 91491 CoL: 5Z2MH GBIF: 2888098 GRIN: 10409 IPNI: 786457-1 IRMNG: 10462848 POWO: urn:lsid:ipni.org:names:786457-1 Tropicos: 28700611 WFO: wfo-0000856189

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