Friday, 24 January 2020

Sodden during a visit to the big Lydenbergia abbottii (Thursday 23 January 2020)

Despite threatening rain, most of the group set off for "Tony's tree", a large but difficult to find Lydenberrgia abbottii situated in the forest along the eastern flank of the Bulolo River gorge. I stayed in the herbarium doing the final steps of loading the BRAHMS database onto the computer. Once I had finished with the computer work I set off after them expecting to have a difficult job tracking them in the dense forest even though I knew where they were heading.

On the way I saw Alectra sessiliflora, Lasiosiphon kraussianus, Gymnanthemum corymbosum, Cyphia elata, Satyrium trinerve, Exochaenium sp. nov, and numbers of Thunbergia atriplicifolia. Just before I reached the forest, I found a small cluster of the yellow form of Tinnea galpinii that only seems to grow along this short section of path.

Fortunately I caught up to the rest of the group before the headed off in the wrong direction and soon we were at the big old Lydenbergia abbottii, fondly known as "Tony's tree". The soil has steadily eroded out from under this venerable cluster of trunks so that the tree is leaning out over a steep slope leading down to the Umfafaza River, a tributary to the Bulolo River. The tree's stability was not enhanced when a large Harpephyllum caffrum collapsed on it a few years ago but most of that has rotted away now.


Alectra sessiliflora

Lasiosiphon kraussianus

Gymnanthemum corymbosum

Cyphia elata

Exochaenium sp. nov.

Satyrium trinerve

Fruit capsule on Thunbergia atriplicifolia

Yellow form of Tinnea galpinii
Once we had taken the obligatory photo with the old tree, we decided to clamber down to the Umfafaza River that we could hear tumbling over rocks below us. We reached the river and set about unpacking our lunch when the heavens opened with a heavy downpour. Fortunately we were under dense forest growth, which shielded us for a while but before long the trickles reached us and we decided to head back - no easy task as the rocks and surrounding vegetation was all drenched. We just had time to capture a few photos (Scadoxus multiflorus subsp. katharinae and Plectranthus hilliardiae) at the streamside before slipping and sliding home.

Posing with the Lydenbergia abbottii

The lower reaches of the Umfafaza River

Plectranthus hilliardiae

A budding Scadoxus multiflorus subsp. katharinae
Participants: Alf H, Anne S, Dorothy M, Gail B-W, Graham G, Tracy T.

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