574 DR. M. T. MASTERS: GENERAL VIEW 
xxix.) Cones oblong or elongate-ovoid .........--...0. XXX, 
“= ) Cones ovoid or broadly ovoid ......... 0.0008. XXXT. 
Cones 8-10 cent., oblong; umbo subulate. Leaves 18- 
Q4 COND. Lee eee eee ee eee 36, Taeda. 
XXX. Cones 4-8 cent., oblong-conic ; umbo depressed, mucronate. 
— Leaves 12-20 cent. ............ 37. Teocote. 
Cones oblong or ovate-oblong, 7~11 cent.; umbo flattish or 
{ depressed, tubercled........... , 08. patula. 
Cones ovoid, opening early ; umbo prominent, subulate, 
XXXL retlexed. Leaves 8-12 cent. .... 39. rigida. 
Cones subglobose or broadly ovoid, serotinous; umbo 
minute. Leaves 16-20 cent..... 40. serotina. 
Sect. 7. Finrrotrm. Spp. 41-47. 
Resin-canals absent ; meristele triangular. 
XXNII. 41. Donnell-Smithii. 
Resin-canals median ,..........cceeeeceees XXXITI. 
Meristele elliptic or transversely oblong ...... XXXIV. 
XXXII, iN [eristele triangular .............. XXXV. & XXXVI. 
Meristele circular ............e.000- cee eee XXXVII. 
sheaths short .............0.. 42, Hartwegi. 
Cones oblong-conic, very variable in size, ete, Leaves 5 
20- 30 cent. ; sheaths long. .... 43, Montezume. 
Cones ovoid or ovoid-oblong. Leaves 3-5, 10-20 cent. ; 
XXXIV. \ 
Cones 20 cent. long. Leaves 20-30 cent. 
44, filifolia. 
Cones 5-Gcent.; umbo slightly mucronate. Leaves8-20cent. 
XXXV. } 
45. leiophylla. 
Xxxv1 ! Cones very large, subglobose ; scales with stout subulate 
"Yo mucro oo. eee eee eee eee 46, Torreyana. 
Cones 5-7 cent. long, oblong-conic ; umbo short, subulate. 
XXXVIL. 47, arizonica. 
Sect. 8. CuprnsEs. Spp. 48-52. 
a Leaves 3; i iptic ..ccecvccseecase . XNXXIX. 
XXXVIL { e meristele elliptic . XL 
| Leaves 5, rarely 3 (palustris)... ce. cece cece eens . 
Cones lateral, 8-15 cent., ovoid-conic ; umbo rhomboid, with 
XXXIX, ashort straight mucro.......... 48, cubensis. 
Cones subterminal .... 0c. ccc c cece eee eee eee XL. 
49, occidentalis. 
Umbo not foliaceous Meeeeeees XLI. 
Ce 
Umbo terminating ina foliaceous process. Leaves 16-18 cent. 
XL 
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a” @ 
