FLORA OF ADEN. 
m 
Species. 
.Limits towards 
Notes. 
West. 
East. 
86 
Euphorbia pol.ycnemoldes . 
Kordofan 
Yenen 
Also in Socotra. 
87 
Euphorbia Schimperi . 
Abyssinia 
Persia 
V 9J> 
38 
39 
Jatropha spinosa 
Forskohlea viridis 
Abyssinia 
S. Arabia 
9 9 • • 
Also in Socotra. 
40 
Panicum leucanthum . . 
Yemen . 
41 
Panicum leersioides • 
M • « 
Aden 
42 
Digitaria pennata . . j. ' 
}? • • 
Gujarat . 
4. Under the fourth group 
we mention those plants which Aden has 
in common with the segypto-arabic desert. It is, of course, impossible to 
draw a sharp line between the desert and the steppe-region. The transi- 
tion from one botanical area to another is never a sudden one, and the 
same species may be common to both regions. We might thus have 
included under the foregoing group some plants, which we are going to 
enumerate in the following list : — 
Species belonging to the Aegypto- Arabic desert . 
Limits towards 
Species. 
Notes. 
West 
Ens t c 
1 
Farsetia longisiliqua . 
Upper Egypt . 
S. A rabia . 
Also in Socotra. 
2 
Cleome droserifolia . * 
Egypt 
19 • * 
Also Sinai penin- 
eula. 
3 
Dipterygium glaucum . . 
Kordofan • 
N. W. India . 
4 
Gapparis galeata . 
Egypt •• 
Sind 
Also Sinai penin- 
sula, Socotra. 
5 
Capparis decidua . 
Darfur . 
Deccan . 
Also in Socotra, 
Tuticorin. 
6 
Oohradenus baccatus 
Egypt 
Sind 
7 1 
Polycarpaata spicea 
Upper Egypt . 
Gujarat . 
Also in Socotra. 
8 
Fagonia parviflora 
)» j» • 
Arabia . . 
9 
Commiphora opobalsamum . 
Nubia 
S. Arabia , 
10 
Moringaaptera 
Upper Egypt . 
j» • • 
