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Useful Temperate Plants

Pittosporum coriaceum

Dryand. ex Aiton

Pittosporaceae

+ Synonyms

Common Name:

No Image.

General Information

Pittosporum coriaceum is an evergreen shrub or tree that can grow around 15 metres tall.
The plant used to be harvested from the wild for local use as a source of soap. Given this species rarity, this is no longer an acceptable practice.
Pittosporum coriaceum is native only to Madiera where it has a very small and fragmented total population of between 40 - 50 individuals. The main threats to this species are the disturbance of sensitive areas, fires and landslides. Several unfavourable intrinsic factors such as a low regeneration rate further reduce its survival chances, though the population is currently stable. The plant is classified as 'Critically Endangered' in the IUCN Red List of Threatened Species(2011)[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].

Known Hazards

None known

Botanical References


Range

Macaronesia - Madeira

Habitat

North-facing slopes, growing in deep ravines in laurisilva forests with Ocotea foetens[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].

Properties

Conservation StatusCritically Endangered
Other Uses Rating *
HabitEvergreen Shrub
Height0.00 m
PollinatorsInsects
Cultivation StatusOrnamental, Wild

Cultivation Details

Pittosporum coriaceum can be grown in warm temperate to subtropical climates. It is not very frost tolerant.
Pittosporum species generally grow best in a sunny position, but tolerate light shade. They succeed in most well-drained soils[
182
Title
Ornamental Shrubs, Climbers and Bamboos.
Publication
 
Author
Thomas. G. S.
Publisher
Murray
Year
1992
ISBN
0-7195-5043-2
Description
Contains a wide range of plants with a brief description, mainly of their ornamental value but also usually of cultivation details and varieties.
,
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
The flowers are delicately fragrant
Although flowers usually appear to be hermaphrodite, many species of Pittosporum are functionally dioecious, with individual specimens bearing mainly or totally flowers of one sex only. Even so, occasional functionally hermaphrodite flowers will appear and, in at least some species, these flowers can be self-compatible and produce fertile seed even in the absence of any other plants of that species[
1685
Title
Revision of Pittosporum (Pittosporaceae) in Australia
Publication
Australian Systematic Botany 13, 845-902, 2000
Author
Cayzer L.W.; Crisp M.D. & Telford I.R.H.
Publisher
 
Year
2000
ISBN
 
Description
A comprehensive review of the genus in Australia
].
The species in this genus are also very likely to hybridize with other members of the genus[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. When growing a species from seed it is important to ensure that the seed either comes from a known wild source, or from isolated specimens in cultivation.

Edible Uses

None known

Medicinal

None known

Other Uses

The plant is rich in saponins and has been used in the past as a soap substitute, though this is no longer advisable given the rarity of the species[
1683
Title
The Australian and New Zealand Species of Pittosporum
Publication
Annals of the Missouri Botanical Garden Vol. 43 No. 2, pp 87-188 May 1956
Author
Cooper R.C.
Publisher
 
Year
1956
ISBN
 
Description
Rather dated, but still an excellent treatment.
].

Propagation

Seed - sow when ripe in the autumn or in late winter in a warm greenhouse[
78
Title
Propagation of Trees, Shrubs and Conifers.
Publication
 
Author
Sheat. W. G.
Publisher
MacMillan and Co
Year
1948
ISBN
-
Description
A bit dated but a good book on propagation techniques with specific details for a wide range of plants.
,
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. The seed usually germinates freely. Prick out the seedlings into individual pots when they are large enough to handle, move the plants to a cold frame as soon as they are established and plant out late in the following spring[
78
Title
Propagation of Trees, Shrubs and Conifers.
Publication
 
Author
Sheat. W. G.
Publisher
MacMillan and Co
Year
1948
ISBN
-
Description
A bit dated but a good book on propagation techniques with specific details for a wide range of plants.
]. Consider giving them some protection from the cold during their first winter outdoors.
Cuttings of half-ripe wood, 5 - 7cm with a heel, mid summer in a frame[
78
Title
Propagation of Trees, Shrubs and Conifers.
Publication
 
Author
Sheat. W. G.
Publisher
MacMillan and Co
Year
1948
ISBN
-
Description
A bit dated but a good book on propagation techniques with specific details for a wide range of plants.
].
Basal ripewood cuttings late autumn in a cold frame[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2021-03-08. <temperate.theferns.info/plant/Pittosporum+coriaceum>

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