1 



INTRODUCTION. 



P. Brutea, P,31; P. Cembra, 2°,101; uninj., -5° 8 80, 10°,39 ; 

 Ota., (m),3d j P. devoniana, P,140, 2°,32 ; uninj., O°,260 ; P. Don 

 Pedn, P,31 ; P. excelsa, -13~,295, -6°,329 f -2°,267, -P,285, 0°, 

 302. P,31, 5°,204,318, 9 Q ,95,266, 10°,(m)34,39,185 j uninj., 0°, 

 92, r\233, 3°.270,5°,203,222, 9°,213, 22f,109,201,254 ; P. Gerar- 

 diana, 10°,39 j P. halepensis, -P,30, 1°,31, 254 ; uninj., 3°,270, 

 22| ; P. Hartwegi, 1°,31 (see P. amecaensis) ; P insignis, -13°,295, 

 -2°,267, -1° ,30,285, 0°,37, 1°,31,35, 2°,32,216,284, 3°,199,226, 

 300, 4°,35,198,214, 5°,29,204, (b. z.— 0°) 7 (1), 1 (2), 1 (3), (P 

 —10°) 9 (1), 8 (2), 6 (3), (ll°-20°) 9 (1), 5 (2), 6 (3) ; unit*, 

 0°,38, 3 P ,270, 4°,215, 9°,209, 13°,22, 15°?55, (Obs. of growth) 

 O°,109,202,254,258, (b. z.— 0°) 3 ; 10°) 7, (11°— 20°) 8 ; 

 Bark burst, 239 ; P. koraiensis, 256 ; P. Lambertiana, 1°,31 ; 

 uninj., 10°,39, 109 ; P. Laricio, -13°,295, -5°,H0, -4°,278, 5°, 

 204,318, 15M5 ; uninj., -7°,290, 2°,284, 3°,270, 4°,215, 5°, 

 222, 9°,213, 10°,39, 22t,201,254, (b. z.— 0°) 4, 10°) 11, 

 (11°— 20°) 2 ; P. Llaveana, 123 ; P. niacrocarpa, 34,254 ; P. 

 macrophylla, -7°,99 ; P. monticola, uninj., 8°, 151 ; P. Parryana, 

 uninj., O°,250 ; P. patula, 1°,140 ; uninj., 12°, 238 ; P. pinaster, 

 10°,39 ; P. pinea, -13°,295, -4°?41, -P,30, P,233, 6°,303, 12° 

 ?123, 254; uninj., 3°,270, 22f,201,256 ; P. ponderosa, 39 ; P. 

 Sabiniana, 39 ; P. Sinclairii, p,31 ; P. sylvestris, -4°,278, 5°,204, 

 15; uninj., F,233, 3°,270, 4°,215, 5°,203,222, 9°,213, 254, (b. 

 z.— 0°) 3, 10°) 12, 20°) 4. Piptanthus, -13°,295, 



1°,140, 9°,213, 10°,318, 107,223,254; unity., 10°,19, 22f,108, 

 212. Pistacia vera, 63 ; P. Lentiscus, 63. Pittosporum Bucha- 

 nani, 211; P. revolutum, 178; P. tenuifoliuin, 208,299; uninj. , 

 2O°,120; P. Tobira, -13°,295, -2°,301, 2°,216, 3°,241, lO°,202, 

 12°?123,237, 15°,176,200, 22*50,208; P. T. variegatum, 50. 



Plagianthus, 208. Planera, 18. Platanus occidentalis, 107; 

 uninj., 22t; P. orientalis (Plane), 2°,32, 5°,204, 13°,5, 15°,15, 

 13,17; Obs., 46; uninj., -12°,310, -2°,316, 1°,233, 3°,270, 5°,203, 

 222, 12°?123, 22f,201,212,254. Plattcodon, 181. Plaitcrater, 

 10°,18j uninj., 6°,303. Plum (b. z.— 0°), 1 (2), 5 (3), (P— 

 10°) 4 (2), 3(3); uninj., (b. z.— 0°) 4, (1°— 10°) 10, (IP— 

 20°) 6; vars., all but Golden Drop, uninj., 3°,270; Black Per- 

 drigon, (m)313 ; Bullace, 313; Damson, uninj., 8°,151, 10°,70 ; 

 Golden drop, 3°,270,269, 9°,77; uninj., 313, 13°, 5 ; Greengage, 

 uninj., 313, 13°,5 ; Ickworth Imperatrice, 313; Jefferson, 3°,226, 



