''Lobostemon capitatus'' is a species belonging to the
forget-me-not family. It is
endemic
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
to the
Western Cape
The Western Cape ( ; , ) is a provinces of South Africa, province of South Africa, situated on the south-western coast of the country. It is the List of South African provinces by area, fourth largest of the nine provinces with an area of , an ...
of South Africa, where it is found between
Porterville and
Bredasdorp
Bredasdorp is a town in the Southern Overberg region of the Western Cape, South Africa, and the main economic and service hub of that region. It lies on the northern edge of the Agulhas Plain, about south-east of Cape Town and north of Cape Agu ...
.
Description
''Lobostemon capitatus'' is a
shrub
A shrub or bush is a small to medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple ...
that grows tall, sometimes reaching a height of up to .
[BODATSA: Botanical Collections. v1.4. South African National Biodiversity Institute. Dataset/Occurrence. http://ipt.sanbi.org.za/iptsanbi/resource?r=brahms_online&v=1.4] The branches are more or less equally spaced and the herbaceous branches are hairy.
The leaves are slender, tapering to a point.
The undersides of the leaves are covered in hairs. The upper face is hairless or has only a few sparse hairs.
The flowers are cream with purple markings.
They are small, reaching a length of about .They grow as a capitate cyme, meaning that large number of sessile flowers grow from a suppressed rachis. The flower buds arranged in two distinct parallel rows and don't spreading much in fruiting stage.
The
stamens
The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10
Morphology and terminology
A stamen typically consists of a stalk called the filamen ...
protrude past the petals in adult flowers. They are typically all of similar length, although one may be shorter than the others.
The staminal scales are well developed. They are triangular with lateral lobes.
They occur at the throat of the corolla tube, above the base. The area between them is hairy.
Distribution and habitat
This species is endemic to the Western Cape of South Africa, where it is found between Porterville and Bredasdorp where it occurs on
shale
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of Clay mineral, clay minerals (hydrous aluminium phyllosilicates, e.g., Kaolinite, kaolin, aluminium, Al2Silicon, Si2Oxygen, O5(hydroxide, OH)4) and tiny f ...
slopes and flats. It primarily occurs in
Renosterveld
Renosterveld is a term used for one of the major plant communities and vegetation types of the Cape Floristic Region (Cape Floral Kingdom) which is located in southwestern and southeastern South Africa, in southernmost Africa. It is an ecoregion ...
in the northern parts of its distribution and in Elim Ferricrete Fynbos towards the south east.
It is known from fifteen fragmented subpopulations.
[Buys, M.H., Helme, N.A. & Raimondo, D. 2006]
Lobostemon capitatus (L.) H.Buek
National Assessment: Red List of South African Plants version 2020.1. Accessed on 2021/08/11
Conservation
The
South African National Biodiversity Institute (SANBI) has classified ''Lobostemon capitatus'' as vulnerable. The small populations continue to decline, largely due to agriculture and urban development, especially in the
Durbanville
Durbanville, previously called Pampoenkraal, is a town in the Western Cape province of South Africa, part of the greater City of Cape Town, Cape Town metropolitan area. It is a semi-rural residential suburb on the north-eastern outskirts of the ...
area.
References
{{Taxonbar, from=Q15590446
Boraginaceae
Endemic flora of the Cape Provinces
Plants described in 1837