406 Select Plants for Industrial Culture and 



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 Pistacia Atlantica, Desfontaines. 



North-Africa. As the experienced explorer, Dr. E. Cosson, 

 recommends this tree for raising forests on the high Algerian 

 plateaux, it should also be very acceptable in other similar regions ; 

 yields mastic also. 



Pistacia Lentiscus, Lhm<$. 



The Mastic-Tree. Mediterranean regions. A tall evergreen bush, 

 exuding the mastic-resin, mostly through incisions into its bark. In 

 Morocco the plant is extensively used for hedges also. 



Pistacia Terebinthus, Linn6. 



Countries around the Mediterranean Sea, thence to Afghanistan 

 and Baluchistan. A tall bush or small tree with deciduous foliage. 

 The fragrant Cyprian or Chio-turpentine exudes from the stem of 

 this species ; it was used already by Hippocrates medicinally. 

 Recently it has here been employed with advantage by Dr. Astles in 

 carcinomatous affections. In Upper India the seeds are pressed for 

 oil [Brigade-Surgeon Aitchison]. 



Pistacia vera, Lmn.* 



Syria, Persia, Afghanistan. A deciduous tree, sometimes to 30 

 feet high, yielding the Pistacio-nuts of commerce, remarkable for 

 their green almond-tasted kernels. The galls from this tree are of 

 technic value. Dr. Bancroft adopted the ingenious plan of insert- 

 ing Pistacia-seeds into dry figs, to secure their power of germina- 

 tion during transmission to remote places. Artificial pollination 

 increases the fecundity. Can be grafted on P. Terebinthus [Parla- 

 tore, Dyer], 



Pisum arvense, Linn. 



Eastern countries at the Mediterranean Sea. A good forage- 

 plant, though annual ; thriving in any soil ; best cut for stable- 

 fodder [Naudin]. Hardier and more drought-resisting than the 

 ordinary pea, of which it may nevertheless be the origin [A. de 

 Candolle]. Alefeld, Koernicke and Wittmack, as leading scientific 

 agronomists, regard P. sativum as a garden-variety of this plant. 



Pisum sativum, Linn<5.* 



The common Pea. South-Western Asia. Cultivated already by 

 the ancient Greeks and Trojans [Virchow, Wittmack], during the 

 stone-age in Hungary [A. de Candolle]. Matures, under horticul- 

 tural care, seeds even in the hot desert-regions of Central Australia 

 [Rev. H. Kempe], where it is a winter-plant like in tropical regions 5 

 on the other hand it comes to perfection as far north as 70 22' in 

 Norway [Schuebeler]. This annual of daily' use could hardly be 

 left unnoticed on this occasion. Suffice it to say, that the herbage 



