442 MONOECIA MONADELPHIA. 



HAB. Wet shady places. May June, Tj. ; root tubular, ac*~ul > 

 ypath. green or purple ; berry red. 



394. LECONTIA. 



L. virginica. 



HAB. Swamps. July, Tj. ; leaves petiolat*, oblong, hastate-cordate, 



with the lobes obtuse ; spathe lanceolate, involute ; border undulate ; 



spadix slender. 



395. CALLA. Water arum. 



C. palustris : leaves cordate ; spathe flat ; spadix covered with perfect 



flowers. 

 HAB. In water. July, 7|_ ; root thick, creeping ; leaves acuminate ; 



spathe oval, white inj&ide. 



MONADELPHIA. 



396. PINUS. Pine. 



* Leaves solitary, distinct at the base. ABIES. 



P. canadensis : leaves solitary, flat, denticulate, nearly in two rows ; 



cones ovate, terminal, scarcely longer than the leaves. 

 HAB. Rocky woods and mountains. A large tree ; branches and 



leaves horizontal ; leaves linear, obtuse. 

 P. nigra : leaves solitary, quadrangular, erect, straight ; cones ovate ; 



scales elliptical, undulate on the margin, erect, summit denticulate. 

 HAB. Mountain swamps. A middle-sized tree ; leaves dense, dark 



green ; cones 1 2 inches long. 



* * Leaves 2 5, in a short cylindrical sheath. PINUS. 



P. rigida : leaves by threes, with short sheaths ; sterile aments erect- 

 incumbent ; cones ovate, scattered or clustered ; spines of the scales 

 reflexed. 



HAB. Barren sandy soils. A large tree ; bark thick and rough ; cones 

 large. 



P. Strobus : leaves by fives, slender ; sheaths very short ; cones pendu- 

 lous, cylindrical, longer than the leaves ; scales loose. 



HAB. Fertile soil. A very large tree ; leaves very delicate ; cones 

 3 inches long. 



* * * Leaves fasciculate, (deciduous.) LARIX. 



P. mtcroMrpa : cones roundish, few-flowered ; scales inflexed ; bracts 



elliptic, obtusely acuminate. 

 HAB. Swamps and low grounds. A pretty large tree scales red^ 



brown, or white. 



