Abstract:
Four genera of the Alliaceae are known to occur in
sub-Saharan Africa, in total comprising 35 indigenous
and two naturalized alien species (Table 2) (Archer 2003;
Klopper et al. 2006). Tulbaghia L. is the most diverse
and widespread genus of the family in southern Africa,
but the other two indigenous sub-Saharan genera, Allium
L. and Prototulbaghia Vosa, are each represented by a
single restricted-range species, of which the latter has
only been described recently (Vosa 2007). This note supplements
the existing description of P. siebertii Vosa,
which is endemic to the Sekhukhuneland Centre of Endemism
(Van Wyk & Smith 2001), South Africa (Vosa et al.
2011), where it is restricted to the summit of the Leolo
Mountain Range, Limpopo Province. Although macromorphological
characters of Prototulbaghia have been
documented by Siebert et al. (2008), little is known about
the micromorphology and cytology of P. siebertii.
