PLATEAUX OR MONTANE FLORA. 155 



Sinaitic species found in Asia Minor ... ... ... 113 



,, „ Midian ... ... ... ... 120 



Sinaitic species found in Arabia, excluding Aden, Muscat, 

 Midian and Arabia Petrsea ( = Arabia Trop., Arabia 



Felix, Arabia Deserta) ... ... ... ... 79 



Sinaitic species found east of Arabia, in Persia, India, 



Afghanistan, Beloochistan and Mesopotamia ... 240 



Sinaitic species found in Aden (S.W. Arabia) ... ... 2>7 



,, ,, Muscat (S.E. Arabia) ... ... 2)7 



Sinaitic species found in all Arabia, excluding Arabia 



Petraea, to which Sinai belongs ... ... ... 191 



Sinaitic species found in Mesopotamia ... ... ... 93 



„ _ „ _ India .. 74 



Sinaitic species found in east of Arabia Petraea, either in 

 Arabia, Mesopotamia, Afghanistan, Beloochistan or 



India ... ... ... 328 



Sinaitic species found in Turkestan, Songaria, and countries 



around the Caspian ... ... ... ... ... 65 



Sinaitic species found in Nubia ... ... ... ... 'j^ 



„ „ _ Abyssinia 53 



Sinaitic species found in Senegal, Senegambia and tropical 



Africa ... ... ... ... ... ... ... 25 



Sinaitic species found in Cape de Verde Islands ... ... 36 



„ ,, Madeira ... ... ... ... 29 



,, ,, Canaries ... ... ... ... y^ 



,, ,, Cape of Good Hope ... ... 19 



,, ,, /\zor€s ... ... ... ... 



Although I am averse to drawing conclusions from lists of figures, I 

 would point out that, considering how little we know of the botany of 

 Central Arabia, two of the above totals are interesting. Of the 425 

 Sinaitic species ranging beyond Arabia Petraea, 191 are known to inhabit 

 Arabia at different parts, whether it be Aden, Midian, Muscat, Arabia 

 Felix, Yemen, or tropical Arabia. But of the same Sinaitic total there 

 are no less than 240 found east of Arabia in India, Persia, Afghanistan, 

 Beloochistan, or Mesopotamia. No doubt many of those fifty plants 

 not recorded from the intervening country do not skip the Arabian 

 peninsula. 



If we omit the adjoining countries, Arabia on the east and south-east, 

 and Egypt, Nubia, and Abyssinia on the west and south-west, and com- 

 pare the numbers of plants common to Sinai, and those countries east of 

 Arabia on the one side, and west of Eastern Africa — that is to say, in the 



20 — 2 



