124 P L A 



1110. PHYTOLACCA, 54. 89. 

 decandra spoke we<?d. w. Ju. 21.) leaves ovate, acute at 

 both ends : flowers raccmcd, berries flattened at the cuds*- 



181. PICRIS, 49. 55. 

 lieradodes (oxtongue.) 



20- 16. PINUS, 51. 100. 

 1. Leaves solitary with separate bases. 

 lalsamea (fir tree, balsam tree. M. h *) leaves flrd, 

 emarcinate or entire. Jrawri (double K|niirt*.) :< 



white spruce.) canadeiws (heajlwek 



(black spruce.) alfta (white spruce 

 tree.) rubra (red spruce, spruce fir.) 



2. Leaves in pairs, with the bases bound together by sheaths, 

 resinosa (yellow pine, norway pine, red pine. M. .) 



leaves and sheaths elongated, inops (jersey pine.) bank- 

 siuna (scrub pine, grey pine.) 



3. Leaves in threes, with the bases bound together by sheaths. 

 variabilis (three leaved yellow pine.) rigida (pitch 



pine. M. ^ .) leaves with abbreviated sheaths, serotina 

 (pond pine.) 



4. Leaves in Jives, with bases bound together by sheaths. 

 strobus (white pine.) 



5. Leaves many in a fascicle. 



pendula (black larch, tamarack, hack-matack.) mi- 

 crocarpa (red larch.) larix (common larch.} 



1710. PISUM, 32. 93. 



sativum (pea. E. p-w. J. @.) petioles terete : stipules 

 round and crenate at the base, maritimiim (sea pea ) 



41. PLANTAGO, 54. 31. 



mnjor (plantain w. J. it.) leaves ovate, subdentatc, 

 subglabrous : scape terete, lanceolata (ribwort.) vir- 

 ginica (dwarf plantain.) cordata. pauciflora. cuwUata. 

 meadia. maritima. 



2013. PLATANUS, 50. 99. 



occidentalis (button-wood, american planetree^ false 

 sycamore. J, ^ .) leaves quinquangular. 



