344 



39. PINUS. 



zontal edge ; point somewhat deflexed. Wing 2 

 or 3 times nut. Lower Buds oblong, obtuse, 

 or abruptly acute. T. 5. fountains, chiefly 

 calc. G. Sw. Dan. 



a. tdiginosa. An erect Tree. Boggy val- 

 leys. 

 y3. humilis. Ascending, branched from base. 

 e. Ger. 



4. Iiaricio. Cones of the year erect. 

 Stalk very short. Shield of mature cone con- 

 vex. Wing 3 times nut. Lower Buds acumi- 

 nate. l.T. 5. Woods, chiefly calc. e. G. Cors. 



5. uncinata. Cones of the year erect, on 

 short stalk. Shield of mature cone with a 

 long, recurved beak. Wing 3 times nut. Lower 

 Buds oblong, obtuse, or abruptly acute. s.T. 

 6, 7. High. Sw. Alps. Pyr. 



6. maritima. Cones of the year spread- 

 ing, nearly sessile. Shields of mature cones 

 with a sharp, projecting, horizontal edge; 

 point not deflexed. Wing 2 or 3 times nut. 

 Scales of lower Buds squarrose ! T. 4. Coasts 

 of Mdt. Fr. and It. 



7. Pinea. Cones of year nearly erect. 

 Stalk short. Shield of mature cones convex. 



not angular. Wing not half as long as nut. 

 Scales of lower Buds squarrose ! l.T. 5, 

 Coasts. Mdt. 



B. L. 3-5 in each sheath. 



8. Cembra. Cones ovoid, nearly sessile. 

 Scales spreading at top. No Shield. Nuts 

 wingless. L. 3-edged. T. 6. High. Alps. 



9. Strobus. Cones drooping, oblongo- 

 cylindrical, exceeding L. Scales lax ! L. 

 slender. Sheaths deciduous. T. 5, 6. Some- 

 times planted in woods. 



C. All L. solitary, evergreen. 



10. pectinata. L. emarginate, with 2 

 white lines beneath, pectinate. Scales of the 

 erect Cone very blunt, adpressed. l.T. 5. 

 Mountain woods. Ger. Fr. Sw. It. 



11. Abies. L. compressed, somewhat 4- 

 edged, mucronate. Cones cylindrical, pendu- 

 lous. Scales eroso-denticulate. l.T. 5. Moun- 

 tain woods. 



D. L. fascicled and solitary, deciduous. 



12. Iiarix. L. somewhat channeled. Cones 

 ovoid, erect. Scales very obtuse, lax at the 

 top. l.T. 5. Mountain woods. Alps. Ger. 



