Notes

Acacia has recently been conserved with a new type from Australia. Therefore, if the genus is subdivided along the lines indicated in vol. 1: 368 (1993), species n. 1–20, and also A. petrensis, would belong to Senegalia and species n. 22–39, as well as A. cernua, A. qandalensis and A. tephrophylla, would belong to Vachellia. Only species n. 44, A. saligna, introduced from Australia, would remain in Acacia. However, the nomenclatural changes needed for this new classification have mostly not yet been made. A. albida, according to molecular evidence, should be placed in the monotypic genus Faidherbia A. Chev. The record of A. ancistroclada Brenan from C Somalia in Kuchar, The plants of Somalia (1988) was based on Gillett & al. 21978 and 22451 that are respectively A. tortilis and A. nilotica subsp. leiocarpa. A. farnesiana L. has been reported as cultivated near Mogadishu according to Kuchar (1988). As this has not been confirmed by any specimen the record is omitted here. A. pseudonigrescens Brenan & Ross, only known from near Mustahil in SE Ethiopia may well occur in Somalia. It is a very characteristic species, apparently unarmed, with a smooth grey powdery bark and leaves with 1 pair of pinnae, each with 2 pairs of leaflets, 18–35 x 11–31 mm. Several Australian Acacia species with phyllodic leaves have been planted on dunes particularly in S Somalia in recent years. Information is scarce, however, and only one such species, A. saligna, is included in the key below.