Question: In between Dissotis and Heuchera which one is distributed across Africa?

Context paragraphs:
Abacetus: Abacetus is a genus of beetles in the family Carabidae, distributed across Africa, Asia and Australia, with a single European species.  It contains the following species:

Eumenophorinae: The Eumenophorinae is a subfamily of tarantula spiders (family Theraphosidae).  They are known from thirteen genera distributed across Africa, southwestern countries in Saudi Arabia, Madagascar and the associated islands.

Sambus: Sambus is a genus of beetles in the family Buprestidae, the jewel beetles.  There are some 165 species distributed across Africa, parts of Asia, and Oceania, including Australia.

Dissotis: Dissotis is a genus of plants in the family Melastomataceae.  There are about 111 - 140 species, distributed across Africa.

Heuchera: Heuchera is a genus of evergreen, herbaceous perennial plants in the family Saxifragaceae, all native to North America.  Common names include alumroot and coral bells.

Turdoides: Turdoides is a genus of passerine birds in the Leiothrichidae family.  It contains about 30 species distributed across Africa and southern Asia.  They are typically fairly large, long-tailed birds which forage in noisy groups.  The majority of species have drab brown or grey-brown plumage.

Pied kingfisher: The pied kingfisher ("Ceryle rudis") is a water kingfisher and is found widely distributed across Africa and Asia.  Originally described by Linnaeus in 1758, it has five recognised subspecies.  Its black and white plumage, crest and the habit of hovering over clear lakes and rivers before diving for fish make it distinctive.  Males have a double band across the breast while females have a single gorget that is often broken in the middle.  They are usually found in pairs or small family parties.  When perched, they often bob their head and flick up their tail.

Cyamopsis: Cyamopsis is a genus of the family Fabaceae.  Its species are distributed across Africa, Asia and the Pacific.

Little free-tailed bat: The little free-tailed bat ("Chaerephon pumilus") is a species of the genus "Chaerephon" in the family Molossidae.  It is widely distributed across Africa and islands around the continent.

Rostratula: Rostratula is a genus of painted-snipes.  It contains two extant species distributed across Africa, Asia and Australia.

Supporting paragraphs: Dissotis Heuchera
Answer: Dissotis