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Pimpinella Sisarum, Benth. {Slum Sisarum, L.) 
East Asia. A perennial herb. The hunches of small tubers 
afford an excellent culinary vegetable. 
Pipturus propinquus, Weddell. 
Insular India, South Sea Islands and warmer parts of East 
Australia. This bush is higher and rather more hardy than 
Boehmeria nivea ; but in fibre it is similar to that plant. 
P. velutinus, Wedd., is closely allied. The few other species 
serve probably as well for fibre. 
Pistacia Lentiscus, E. 
The Mastix Tree. Mediterranean regions. A tall ever- 
green bush, exuding the Mastix Besin mostly through 
incisions into its bark. In Morocco it is extensively used 
for hedges. 
Pistacia Terebinthus, L. 
Countries around the Mediterranean Sea. A tall bush or 
small tree with deciduous foliage. The fragrant Cyprian or 
Chio Turpentine exudes from the stem of this species. 
P. vera, L., is inserted already among the timber trees. 
Pisum sativum, L.* 
The Common Pea. Mediterranean countries and Western 
Asia. This annual of daily use could hardly be left disregarded 
on this occasion. Suffice it to say, that the herbage as a 
nutritious fodder deserves more attention than it receives. 
The green fruit contains Inosit-sugar and Cholesterin-fat. 
A second species, P. Auclieri, Jaub. and Spach., which is 
perennial, occurs in alpine elevations on the Taurus. 
Plectocomia Himalaiana, Griffith. 
Sikkim, up to 7000 feet. This Eattan-Palm requires moist 
forest-land. Its canes are not durable, but this palm is an 
object worthy of horticulture and would prove the hardiest 
among its congeners. 
Poa angustifolia, E- (P- serotina, Ehrh. P . fertilis, Host.) 
Europe, North Asia, North America. A perennial pasture- 
grass, allied to P. nemoralis. An excellent grass for moist 
meadows and river-banks. 
