40 
FLORA OF ADEN. 
Order. 
Genera. 
Species. 
Order. 
Genera. 
Species. 
1. 
Menispermaceae , 
• 
1 
1 
29. 
Asclepiadaceae 
7 
8 
2. 
Cruciferse • 
• 
2 
2 
30. 
Boraginaccae 
3 
11 
3. 
Capparidaceae . 
• 
5 
18 
31. 
Convolvulaeeae , 
3 
5 
4. 
Resedaceae • 
• 
2 
2 
32. 
Solanaceae 
1 
1 
5. 
Polygalaceae , 
• 
1 
3 
33. 
Scrophulariaceae . 
. 
5 
9 
6. 
Caryopbyllaccae . 
• 
3 
5 
34. 
Orobanchaceae 
1 
1 
7. 
Portulacaceae , 
* 
1 
1 
35. 
Bignoniaceae 
1 
1 
8. 
Malvaceae 
2 
3 
36. 
Acanthaceae 
3 
3 
9. 
Sterculiaecse • 
• 
2 
2 
37. 
Verbenaceae 
1 
2 
10. 
Tiliaceae 
6 
2 
4 
38. 
Lab'atae . 
3 
3 
11. 
Zygophyllaceae • 
♦ 
3 
5 
39. 
Nyctaginaceae 
1 
3 
12. 
Geraniaceae . 
1 
1 
40. 
Illecebraceae . 
1 
2 
13. 
Burseracese 
• 
1 
2 
41. 
Aniarantaceae 
4 
6 
14. 
Rbamnaceae • 
• 
1 
2 
42. 
Chenopodiaceae 
7 
11 
15. 
Yitaceae • 
• 
1 
1 
43. 
Arisrolocliiaceae . 
1 
1 
16. 
Moringaccee . 
• 
1 
1 
44. 
Lorantbaceae 
1 
1 
17. 
Legmninosae * 
♦ 
10 
32 
45. 
Eupborbiaceae 
4 
13 
18. 
Coinbrctaceae 
1 
1 
46. 
Urticaeeae 
1 
2 
19. 
Lytbraceae ♦ 
1 
1 
47. 
Iiydrocharidaceae . 
1 
1 
20. 
Loasaceae • 
1 
1 
48. 
Amaryllidaceae 
1 
2 
21. 
Cucurbitaceae 
3 
6 
49. 
Liliaceae 
3 
3 
22. 
Ficoideae 
4 
6 
50. 
Commelinaceae 
1 
1 
23. 
Umbelliferae 
1 
1 
51. 
Pal mao 
1 
1 
24. 
Rubiaccae . 
1 
2 
52. 
JSaiadaceae 
1 
3 
25. 
Compositae . 
8 
10 
53. 
Cyperaceae 
1 
3 
26. 
Plumbaginaeeae . 
1 
2 
54. 
Gramineae 
17 
33 
27. 
Salvadoraceae • 
2 r 
3 
55. 
Gnetaceae 
1 
1 
28. 
Apocynaceae 
1 
1 
This list shows 
orders and genera 
portion of orders, 
that there exists a great preponderance of natural 
if compared with the number of species. The pro- 
genera; and species is 1 : 2‘5 : 4‘5, whilst on the 
