OF THE GENUS PINUS. 575 
Cones 15-26 cent., cylindric conic; umbo with a short re- 
curved mucro, Leaves3,25-35cent. 50. palustris. 
Cones 10-12 cent., elongate ovoid; umbo short, deltoid. 
XL Leaves 18-80 cent. ........... . 651. pseudostrobus. 
| Cones 5-10 cent., subglobose; umbo muticous. Leaves 18- 
25 cent. ......e00, seseseeecees 52, OOCarpa. 
** Leaves 2, semiterete. 
Sect. 9. StrvestrEs. Spp. 53-62. 
. Cones lateral... .... cc cece cece e cee ee eect eeees XLITi. 
XLII. | Cones subterminal ........... cc cccececeeeees XLIV. 
(Cones solitary or in pairs, ovoid or usually oblong-conic, 
| long-stalked, deflexed. Leaves 7-9 cent. 
XLIII. 58. halepensis. 
Cones often clustered, broadly ovoid, subsessile, horizontal or 
\ ascending. Leaves 12-18 cent... 54. bruttia. 
XLIV | eaves more than 10 cent. long ................ XLV. 
on "* ) Leaves less than 10 cent. long ............000. XLVI. 
( Coneselongate, ovoid-conic; apophysis prominent, pyramidal. 
| Leaves 18-20 cent. ..........4. 55. Merkusii. 
XLV. 4 Cones broadly ovoid-conic ; apophysis flattened ; umbo 
depressed. Leaves 14~18 cent., slender. 
\ 56. Massoniana. 
Low tree, generally shrubby, sometimes prostrate; leaves 
deep green. Cones ovoid or ovoid-conic, 3-5 cent. 
57. montana. 
Tall trees ....... wocceeecees ore cvecccccceens XLVII. 
Cones 10-12 cent., broadly ovoid; apophysis prominent. 
XLVI. 
Seed-wing narrow or absent .... 58. Pinea. 
XLVII. Cones less than 10 cent. long, ovoid or ovoid-conic. Seed- 
WIDG CONSPICUOUS ......6e eee sees se ceeccee XLVIIL 
Leaf-buds oblong, distinctly apiculate; apophysis trans- 
versely oblong, muticous. Leaves 10-16 cent. 
59. resinosa. 
Leaf-buds oblong acute, shortly apiculate........ XLIX. 
Cones ovoid or ovoid-conic, acute ; apophysis subrhomboid, 
flattened or prominent, upper border ovate, acute. Leaves 
XLIx., 8ree2 beneath, glaucous at the sides, o nt ae 
Cones ovoid, acute or obtuse; apophysis transversely 
\ oblong, SinUOUS 6... eee eee eee eee ee ete e ee tees L. 
Cones ovoid, 3-4 cent. long; apophysis cushion-shaped, 
striated, upper border irregularly lobed; umbo deeply 
L. depressed. Leaves 7-8 cent..... 61, Henryi. 
Cones 4-5 cent.; apophysis not striated, obscurely lobed ; 
\ _umbo prominent. Leaves 6-10cent. 62. densiffora. 
2x 
XLVIII. 
LINN. JOURN.—BOTANY, VOL. XXXV. 
