182 
Canadensis, 
nigra. 
MONOECIA, MONADELPHIA. 
ria sagittifolia, and growing with it in profusion. ‘From one to 
three feet high. Spathe long, green, and rigidly involute. Pe- — 
rennial, June. 

ORDER VIII MONADELPHIA. 
368. PINUS. Gen. pl. 1451. (Conifere.) 
Masc. Calix 4-leaved. Corolla none. Sta- 
mina many. Anthers naked. Fem. Calla 
a strobilus or cone; scales 2-flowered. 
Corolla none. Pistil 1. Nut alated.— 
Nutt | . 
1. P. leaves solitary, flat, denticulated, somewhat 
distichal ; cones ovate, terminal ; scarcely long- 
er than the leaf.—Lambert, Monograph. 
Not. P. Canadensis, Du Roi. harbk. 2. t. 124. 
P. Americana, Du Roi. harbk. 2. p. 107. 
Abies Canadensis, Mich. f. 
Icon. Lambert, Monograph of the Pines, p. 50. 
t. 32. Mich. f. Arbr. forest. 1. p. 137. t. 13. 
Hemlock Spruce. 
A very large and fine tree. The boards and scantling made 
from its trunk are called hemlock timber. On the Wissahickon; 
abundant. Onthe Schuylkill, often met with. h. May. 4 
2. P. leaves solitary, four-angled, every where 
scattered, erect, upright; cones ovate; scales 
ellipitical; margin undulated, erose-denticu- 
late.—Lambert. 
P. mariana, Du Roi. harbk. 2. p. 107. 
P. denticulata, Mich. Fl. Amer. 
Abies nigra, Mich. f. 
Icon. Lambert, monograph. p. 41. t. 27. 

