TROPICAL FLORA OF THE DEAD SEA BASIN. i6i 



Pulicaria undulata, Linn, (sub Inula). Middle and Upper Egypt, 

 Nubia and Senegal ; Midian. Sinai and Ghor es Safieh. 



N.B. — Several other Nubian and Abyssinian Compositae occur, but 

 they are usually widespread in Egypt and North Africa. 



SALVADORACE^. 



Salvadora persica, Gsertn. Middle and Upper Egypt, Nubia, Abys- 

 sinia, interior of Algeria and Central Africa ; Midian, Aden and tropical 

 Arabia ; North-west and tropical India, Sinai and Ghor es Safieh. 



ASCEPIADE^. 



Solenostoma argel, Del. Upper Egypt and Nubia ; Sinai and 

 Ghor. 



Calotropis procera, Willd. Upper Egypt, Nubia, Abyssinia, sub- 

 tropical Algeria, and Senegal ; Southern Persia and Afghanistan ; 

 Northern India, Midian. Sinai and Gh6r. 



Pentatropis spiralis, Forsk. Senegal, Nubia and Abyssinia ; Mus- 

 cat and tropical Arabia. Wady 'Arabah and Ghor es Safieh. 



Glossonema Boveanum, Dene. Upper Egypt, Nubia and Abyssinia ; 

 tropical Arabia. Eastern Gh6r. Not found in Sinai. 



Leptadenia pyrotechnica, Forsk. (sub Cynancho). Upper Egypt, 

 Nubia and Senegal ; Southern Persia. Sinai and Ghor es Safieh. 



N.B. — Dcemia cordata and Oxystelma alpina, Nubian species, also 

 occur, but they are found in Lower Egypt. 



BORAGINE^. 



Heliotropium arbaniense, Fres. Upper Egypt and Nubia ; Midian 

 and tropical Arabia ; Sinai and Gh6r es Safieh. 



Trichodesma africanum, R. Br. Cape de Verdes, Senegal and Upper 

 Egypt; Beloochistan and Northern India; Midian and Muscat in Arabia. 

 Sinai and up the 'Arabah to Ghor es Safieh. 



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