Table 12.

Taxonomic composition of species 1‐ shared by Africa and Asia, 2‐by Asia, America and Africa, 3‐by Africa, South America and/or sub‐Antarctic islands, 4‐growing on mountains in South Africa, 5‐ growing on mountains in Rwanda‐Burundi‐Kivu and 6‐ in Kenya

Family	1‐Percentage of species shared by Africa and Asia	2‐Percentage of species shared by Africa, Asia and America	3‐Percentage of species shared by Africa, South America and/or Australia and sub‐Antarctic islands	4‐Number and percentage of species growing above 2500 m in S. Africa*	5‐Number and percentage of species growing above 2500 m in Rwanda‐ Burundi‐Kivu*	6‐Number and percentage of species growing above 2500 m in Kenya*
Aspleniaceae	9.37	31.6	20.7	17 (21.2)	18 (29.5)	16 (20.7)
Blechnaceae	0	0	3.45	1 (2.5)	0	1 (2.5)
Cyatheaceae	0	0	0	1 (2.5)	0	0
Davalliaceae	1.56	0	0	0	0	0
Dennstaedtiaceae	4.6	10.5	0	1 (1.2)	4 (6.5)	5 (6.4)
Dryopteridaceae	10.9	10.5	10.3	13 (16.2)	7 (11.4)	10 (12.9)
Gleicheniaceae	1.56	0	0	2 (2.5)	0	0
Grammitidaceae	0	0	24.1	2 (2.5)	2 (3.2)	2 (2.5)
Hymenophyllaceae	3.12	0	10.3	4 (5)	2 (3.2)	9 (11.6)
Lomariopsidaceae	3.12	0	0	6 (7.5)	7 (11.4)	9 (11.6)
Lycopodiaceae	3.12	5.2	10.3	4 (5)	6 (9.8)	3 (3.8)
Marattiaceae	3.12	0	0	0	0	0
Marsileaceae	3.12	0	0	0	0	0
Nephroplepidaceae	1.56	10.5	0	0	0	0
Oleandraceae	1.56	0	0	0	0	0
Ophioglossaceae	7.81	0	3.45	1 (1.2)	0	1 (2.5)
Polypodiaceae	3.12	5.2	3.45	3 (3.7)	6 (9.8)	2 (2.5)
Psilotaceae	1.56	0	0	0	0	0
Pteridaceae	20.3	21.1	13.8	12 (15)	8 (13.1)	14 (18.1)
Schizeaceae	4.6	0.59	1.56	3 (3.7)	0	0
Selaginellaceae	4.6	0	3.45	5 (21.2)	0	1 (1.2)
Thelypteridaceae	12.5	10.5	0	2 (2.5)	0	1 (1.2)
Vittariaceae	3.12	0	0	0	0	0

*According to Jacobsen & Jacobsen (1989).