Bihrmann's

CAUDICIFORMS

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Family: DIOSCOREACEAE 

 Dioscorea basiclavicaulis
 


Photo by Marlon Machado.

  
Author:  Carlos Toledo Rizzini & Armando de Mattos-Filho 1986
Family:  Dioscoreaceae
Habitat:  Brazil
Soil:  Mix
Water:  Medium
Sun:  Medium
Thickness:  15 cm
Height:  15 meters or more
Flower:  Greenish, 8-10 mm
Reproduction:  Seeds/Cuttings
Pop names:  -
Synonyms:  -


A small plant, photo by
Enrico Santimaria.


Photo by
Enrico Santimaria.


Dormant. Photo by
Alain Christophen.

    This member of the Dioscoreaceae family was described by Carlos Toledo Rizzini & Armando de Mattos-Filho in 1986. It id found in  the drier, seasonally deciduous forests found inland in the state of Bahia, Brazil.

 Marlon Machado from University of Zurich have been kind enough to share his observations and knowledge: "I have seen this species in the field in a number of places in the state of Bahia, Brazil. I often found it growing in forests, not evergreen rainforest of the coast but the drier, seasonally deciduous forests found further inland. The plants develop very long vines, that climb up the trees until the canopy of the forest. The plants develops many stems that are thick and spiny at the base, the shape varying from fusiform (spindle-shaped, broadest at the middle and tapering at both ends) to more often obclavate (club-shaped with the broad end at the base), up to 15cm in diameter.

 The specific name basiclavicaulis is a reference to this shape: stem (caulis) with base (basi) like a club (clavi) The thick portion of the stems can be up to one meter long, then it tapers to a vine. I also have found this species growing in more exposed places. Then it gets more compact, with shorter thickened bases of the stems.

Below ground the plants develops several tuberous roots, like potatoes. There is not a single large caudex like some other Dioscorea species, and these tuberous roots are best left in the soil.
 


Photo by Marlon Machado. 
 


Photo by
Enrico Santimaria.