Wednesday 31 March 2021

Geophila repens found growing in the eMalangeni Forest

Geophila repens commonly known as Snake Pennywort

Another rare plant has been added to the long list of plants that are rare in South Africa that are to found growing in the eMalangeni Forest at Kosi Bay.

Geophila repens  Snake Pennywort   rare plant  in South Africa growing eMalangeni Forest  Kosi Bay

Leaves and stems of Snake Pennywort Geophila repens 

On the 19 March 2021 while walking in the eMalangeni Forest at Kosi Bay I saw a most attractive small creeping herb growing in a dense colony on the forest floor that was unknown to me. Little did I know at the time that this plant had only been discovered growing in South Africa in 2008 growing in a small dense colony in the Ngoye forest. See sanbi Red List of South African Plants http://redlist.sanbi.org/species.php?species=7623-4

Little did I know at the time that here in the eMalangeni forest is only the second location in South Africa where this rare plant in South Africa has been seen growing.

Here is a video taken with my mobile phone at the location that I discovered Geophila repens

On my return to Durban I spent much time attempting to identify this plant without success eventually turning to the always very helpful friend and colleague Prof. Dr. Neil Crouch at the KZN Herbarium in Durban for help. Within minutes Prof. Crouch returned my query with the identification of this plant that had eluded me for over a week. Below are two photos kindly given to me by Prof.Crouch of plants collected in the Ngoye Forest for me to post on this blog.

flower of this Geophila repens is old and nearly closed

Unfortunately the flower of this Geophila repens is old and nearly closed 

Here is a really nice photo of the fruit and the underside of the leaves of Geophila repens

Here is a really nice photo of the fruit and the underside of the leaves of Geophila repens

Once I had a name for this delightful little herb in the coffee family Rubiaceae I was able to search the internet to look for information regarding this plant that is so rare in our region. I discovered that although it is rare in our region it has a pantropical distribution. I also discovered it has antioxidant, antibacterial and fungicidal properties. US National Library of Medicine National Institutes of Health https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6151674/

I believe that his plant has tremendous potential to be grown as a shade loving ground cover in the hot humid coastal regions of KwaZulu-Natal as well as a pot plant, both options I will be investigating.

When I have photos of flowers and fruits I will post them, in the mean time please google Geophila repens for images.

Guided excursions

Guided excursions in English, Zulu and German into the eMalangeni Forest and surrounding area including the nearby Tembe Elephant Park can be arranged. Please visit my websites for contact details.

written by Michael Hickman

31.03.21

please visit my websites www.ecoman.co.za and www.hlem.co.za 

as well as my other blogs at

http://luthulienvironment.blogspot.com/ 

 http://ecomandurban.blogspot.com/



Tuesday 30 March 2021

Encephalartos ferox

 Encephalartos ferox

Is a cycad that belongs to the plant family Zamiaceae.

The common English names for it are Kosi Bay cycad or Tongaland cycad

The local Zulu people of the area know it as either isitobhani or isigqiki somkhovu which is an interesting name ghost’s chair. isiqgiki means chair and somkhovu means ghost.

encepalartos ferox


Description

Encephalartos ferox are very striking plants that stand out in the landscape which are usually single-stemmed with new suckers being produced from the base. The stems are subterranean. The fairly broad arching leaves are 1-2 meters long and bear numerous dark green, holly-like leaflets approximately 15cm long and 3-5cm wide.  with distinctly lobed teeth on both the upper and lower margin.

The male and female cones are a deep bright red colour. As all other Encephalartos species the plants are either male or female and bear different cones. The female plants bear 1-5 ovoid cones, each 25-50 cm tall and 20-40cm in diameter. The female cones are sessile on the plant in that they have no stem. The male plants however bear 1-6 cylindrical cones per crown. These are longer 40-50cm and much narrower only 8-10cm in diameter. The male cones are held on short stems up to 3cm long. The seeds large bright red seeds are up to 5cm long and are covered in a glossy bright orange to red flesh.

Distribution and habitat

Encephalartos ferox is found growing in the coastal bush from northern KwaZulu Natal from Sodwana Bay northwards along the coast to Kosi Bay and then further north along the Mozambique coastline as far as Vilanculos.

In the Kosi Bay area and in particular in the area between the eMalangeni Forest and the Indian ocean Encephalartos ferox is found growing in deep nutrient poor sandy soils in large numbers,  they grow  predominantly in the shade of Syzygium cordatum trees both along the forest margin as well in wooded grassland dominated by Syzygium cordatum locally known as umdoni. Encephalartos ferox is locally abundant in this area often occurring within 50m of the beach. Rainfall in this subtropical and humid area varies from 1000 -1250mm per annum. Fires which are fairly frequent are an important element in this plant’s grassland habitat, they only cause superficial damage to the plant.

 encepalartos ferox seed is distributed by the trumpeter hornbill Bycanistes bucinator mostly under syzygium cordatum trees

Encephalartos ferox grove growing in the light shade of Syzygium cordatum

Ecology

The fleshy seeds are eaten mostly by vervet monkeys, and birds in particular the Trumpeter Hornbill Bycanistes bucinator, they are attracted by the fleshy covering of the seed and are important agents of seed dispersal. In particular the hornbills play a very important role in their distribution.

Video of Kosi Bay cycads Encephalartos ferox under Syzygium cordatum trees at emalangeni forest

After eating the seeds the hornbills fly and sit in the Syzygium trees were the seeds are mostly deposited by them thus under nearly every Syzygium cordatum tree in some areas large numbers of Encephalartos ferox are found growing.



Trumpeter Hornbill Bycanistes bucinator is the main distributor of the seed of Encephalartos ferox in the eMalangeni forest area

Trumpeter Hornbill Bycanistes bucinator photo taken by and supplied by Geoff Nichols

Growing Encephalartos ferox

The Encephalartos ferox is a popular landscape and garden subject which grows best in full sun to light partial shade where it flowers best producing up to 800 seed in one cone.

Propagation is mostly by seed however the occasional sucker produced can be removed from the mother plant and grown.  I have grown vast numbers of these cycads from seed germinated in a propagating unit with bottom heat set between 25 – 27 degrees centigrade with intermittent mist. The seeds were placed on the surface of a thin layer of well drained coarse sand mixed with a little peat moss. Once rooted and the first leaves had hardened, the seedlings were carefully removed and planted into small pots with the seed on the surface and only the root planted into the soil.

Guided excursions

Please join us on one of our many guided excursions conducted in Zulu, English or German into the eMalangeni Forest, Kosi Bay area, Tembe Elephant Park the home of the world largest elephants and other surrounding natural areas. Please visit one of my websites for my contact details.

Michael Hickman

30.03.21

Please visit my websites at



as well as my other blogs at

http://ecomandurban.blogspot.com/

http://luthulienvironment.blogspot.com/ 



Sunday 28 March 2021

The eMalangeni Peat Swamp Forest

This blog is to bring to you the rich and varied natural wonders and local human traditions that can be found in and around the eMalangeni Peat Swamp forest immediately south of lake Amanzimnyama at Kosi Bay. 

The Gorgeous Bush-shrike  Telophorus quadricolor is another of the forest birds

The Gorgeous Bush-shrike  Telophorus quadricolor is another of the forest birds that are more often heard than seen but if one has some patience these birds will appear as if by magic out of the undergrowth.

The eMalangeni coastal peat swamp forest with a total area of 880 ha  occurs adjacent to the Siyadla / aManzimnyama river, immediately south of lake aManzimnyama is the largest peat swamp forest in South Africa, it is also the main source of fresh water for the Kosi Bay Lake System.  Coastal peat swamp forests are fresh water forested wetlands that are established on peat soils in close proximity to the Indian Ocean on the north east coast of South Africa. In South Africa Coastal peat swamps forests are highly threatened ecosystems, being the second rarest forest type in the whole country and only occur in isolated patches from the Mozambique border to just south of the Msikaba River in the Eastern Cape. The coastal peat swamp forests on the flat coastal plain of Maputaland which include the eMalangeni coastal peat swamp forest represent seventy five percent of all the swamp forest found in South Africa. 

Pont across the aManzimnyama river in the eMalangeni Forest

The traditional Pont made of the leaves of the Raphia Palm belonging to the local community that is used to cross the aManzimnyama River in the heart of the eMalangeni Forest

As previously stated the eMalangeni peat swamp forest is an extensive swamp forest in the Kosi Bay system. Being the largest swamp forests in the country and due to the rarity of this forest type, it adds considerable importance to the Kosi system. Common tree species include the giant raffia palm Raphia australis, Syzygium cordatum, Ficus trichopoda, Englerophytum natalense, Voacanga thouarsii and Rauvolfia caffra as large trees, with Rapanea melanophleos, Myrica serrata and Halleria lucida as sub-canopy. On the forest margins one can find Sphedamnocarpus pruriens.

on the forest margins one can find Sphedamnocarpus pruriens

 On the forest margins one can find Sphedamnocarpus pruriens

Ferns and other plants such as the reed like liana Flagellaria guineensis. The extensive groves of raffia palms in the forest support the largest population of breeding Palm-nut Vultures Gypohierax angolensis in South Africa. The ferns, Microsorum scolopendria, Stenochlaena tenuifolia and Nephrolepis biserrata as well as Zamioculcas zamiifolia, 

Zamioculcas zamiifolia the very popular indoor plant growing in its natural habitat in the eMalangeni forest at Kosi Bay South Africa

Zamioculcas zamiifolia the very popular indoor plant growing in its natural habitat in the eMalangeni forest at Kosi Bay South Africa

Sansevieria concinna, Scadoxus multiflorus, Coleotrype natalensis, Drimiopsis maculata, Smilax anceps and many other plants cover the forest floor. The trees are covered in epiphytes such as the fern Microsorum punctatum and orchids such as Cyrtorchis arcuata, Aerangis mystacidii and Polystachya concreta, commonly known as the Yellow Helmet Orchid

Epiphytic fern Microsorum punctatum growing in the eMalangeni Forest at Kosi bay

The epiphytic fern Microsorum punctatum growing in the eMalangeni Forest at Kosi Bay

On the forest margins and adjoining grasslands many colourful flowering plants can be seen.

Crinum stuhlmannii subsp. delagoense growing on the margins of emalangeni forest at kosi bay



The Kosi Bay System

Kosi Bay in South Africa is a complex estuary-linked lake system that stretches from the Mozambique border in the north, to Lake Amanzimnyama, in the south, that has been transformed into circular bays and lagoons containing fresh or brackish water, separated from one another by low beach barriers. 

traditional boat made from Raphia palm leaves on the shore of Lake aManzimnyama


Traditional boat made from Raphia palm leaves on the shore of Lake aManzimnyama

The system comprises four roughly circular, interconnected lakes being Makhawulani, Mpungwini, Nhlange and aManzimnyama, a broad channel leading to an estuary that opens to the Indian Ocean, and three extensive areas of swamp. Two principal rivers, Siyadla and Nswamanzi, feed into it. This is also the only system in South Africa in which five species of mangrove are found.

the aManzimnyama river the flows throught the eMalangeni Forest into lake aManzimnyama

The aManzimnyama river the flows throught the eMalangeni Forest into lake aManzimnyama

 The climate is subtropical, with maximum temperatures varying between 23 °C and 30 °C. Rainfall averages between 670 and 1,100 mm p.a. and falls mostly in October–March.

Birds

The bird life of the Kosi system is essentially forest associated and is prolific, the list of 247 species for approximately 85 are water or estuary associated. Amongst the wetland and water associated species some are rare, such as the white winged Flufftail and the Whitebacked Night Heron, Gorsachius leuconotus. 

a photo of crested guineafowl (Guttera pucherani) taken in the eMalangeni Forest Kosi Bay Complex South Africa

A photo of a Crested Guineafowl (Guttera pucherani) taken in the eMalangeni Forest Kosi Bay Complex South Africa

The largest colony of Palm-nut Vultures Gypohierax angolensis in South Africa is to be found in this forest. Several bird species at Kosi area the most southerly limits of their distribution and are not encountered elsewhere in South Africa such as the Livingstone’s Turaco, Tauraco livingstonii.

Orchids

There is a fairly large number of orchid species both epiphytes such as Aerangis mystacidii and Cyrtorchis arcuata as well as terrestrial orchids such as Oeceoclades lonchophylla are to be found in the eMalangeni forest. There a number of tropical African orchid species found in this forest marks the South limit of their occurrence.

the epiphytic orchid Cyrtorchis arcuata growing in the eMalangeni Forest at Kosi Bay

The epiphytic orchid Cyrtorchis arcuata growing in the eMalangeni Forest at Kosi Bay

Animals

Hippo, crocodiles, monkeys, bush pig, bush buck and many others are be encountered in the forest.

Local Human Traditions.

Zulu, Tonga people of the Tembe Tribe and a people known as the amagonde speaking a language isigonde which is fast dying out and is now only spoke by a few older people have been living next to the the eMalangeni Swamp Forest for centuries. These peoples relied heavily on the eMalangeni coastal peat swamp forest as a source of fresh drinking water and as the only available productive land for cultivating crops. The inclined swamp forest valley slopes facilitate easy drainage of the peat and resulted in traditional cultivation techniques of cutting drainage ditches and constructing raised beds. This gradient of hydrological modification enabled the gardening of a wide variety of crops, with bananas Musa xparadisiaca and amadumbe Colocasia esculenta being the most common.

A traditional grain storage hut at eMalangeni

A traditional grain storage hut at eMalangeni

Traditionally the light and durable wood of the endemic Raphia australis palms has been a very important component in the livelihood of the local peoples, the collection of fallen rachi is used for construction material for houses as well as canoes and rafts to cross the aManzimnyama river. 

In time I will research and publish on this blog many of the very rich local traditions of the people who live here.

traditional hut in the eMalangeni forest at Kosi Bay

A traditional hut in the eMalangeni forest at Kosi Bay

As time goes on I will post many features on the plants, birds, animals and insects found in and around this magnificent forest.

Guided excursions that offer far more scientific knowledge and interesting facts in regards to the plants birds animals and other creatures encountered in the forest than the usual guided can be conducted in English, Zulu and German into the eMalangeni Swamp Forest and surrounding area including the nearby Tembe Elephant Park can be arranged and tailored to the individual needs of the client/s no matter at which establishment one will be staying at while at Kosi Bay. Please visit one of my websites for contact details.

Michael Hickman

28.03.21

please visit my websites 

www.ecoman.co.za 

www.hlem.co.za 

as well as my other blogs at

http://luthulienvironment.blogspot.com/ 

http://ecomandurban.blogspot.com/


Gonatopus angustus

Gonatopus angustus is an interesting plant belonging to the plant family Araceae closely related to and often found growing alongside Zamioc...