Table 4.

Chromosome configurations of eight Paphiopedilum interspecific hybrids at metaphase I of meiosis

			Mean (range) chromosome configuration per cell
Hybrid	2n	Total PMCs analysed	I	II	III	IV
P. delenatii × P. micranthum	26	20	3·1 (0–4)	11·6 (11–13)	–	–
P. delenatii × P. bellatulum	26	40	6·9 (2–8)	10·7 (9–12)	–	–
P. delenatii × P. rothschildianum	26	48	5·6 (4–8)	9·7 (7–11)	0·5 (0–2)	–
P. delenatii × P. callosum	29	20	6·1 (3–9)	3·5 (2–5)	5·3 (4–6)	–
P. delenatii × P. glaucophyllum	31	35	5·7 (4–8)	5·4 (5–7)	3·3 (3–4)	1·1 (0–2)
P. rothschildianum × P. micranthum	26	24	19·6 (18–22)	3·2 (2–4)	–	–
P. rothschildianum × P. bellatulum	26	36	3·8 (3–5)	8·4 (7–10)	1·8 (1–3)	–
P. rothschildianum × P. moquetteanum	30	28	8·8 (6–12)	6·4 (4–9)	2·1 (1–3)	0·7 (0–1)