CONTENTS. 7 



Bulletin No. ISO. — -Agricultural and Botanical Explorations in Pal- 

 estine — Continued. 



Economic plants worthy of introduction into the United States — 

 Continued. 



Plants recommended as stocks — Continued. Page. 



Zizyphus lotus 13 



Paliurus spina-christi 14 



Pistacia terebinthus and Pistacia palaestina 14 



Pistacia atlantica 14 



Amygdalus communis 14 



Amygdalus orientalis 15 



Prunus microcarpa and Prunus ursina 15 



Primus cerasia 15 



Crataegus 15 



Pyrus syriaca , 10 



Fruits 17 



Apricots 17 



Quinces t 18 



Pomegranates 18 



Olives 18 



Figs 21 



Ficus carica 21 



Ficus pseudo-sycomorus 22 



Ficus sycomorus 22 



Dates _ 22 



Grapes 24 



Jaffa oranges 25 



Forage plants 27 



Annual crops 28 



The chick-pea and the sesame 29 



Chick-pea 29 



Sesame 31 



Cereals 32 



Barley 32 



Wheat 32 



Medicinal and miscellaneous plants 34 



Wild prototypes of wheat and other cereals in Palestine 36 



Historical interest of wild wheat 36 



Discovery of wild emmer, and Kornicke's theory regarding it 37 



Botanical classification of wheats 38 



The brittle rachis of the primitive cereals 39 



Cultivated wheats with a brittle rachis 40 



Einkorn and its prototype distinct from other wheats 40 



Emmer the only possible prototype of true wheat 41 



Rediscovery of wild emmer in Palestine and Syria 42 



Diversities of wild emmer 44 



Habitual association of wild emmer with wild barley 45 



Discovery of rye, both wild and cultivated, in Syria , 45 



Wide range of wild emmer 46 



Soils and locations preferred by wild emmer 48 



Where did the cultivation of cereals originate? 49 



Summary of studies of the wild cereals 50 



Economic possibilities of wild emmer 51 



Index 53 



