^ JUNIPEEACEAE. 



ovulate flowers often solitary. Seeds borne in cones of dry or fleshy scales, 

 or wholly or partially naked. 



Carpellary scales with bracts, never peltate : ovules inverted : buds scaly : wing accom- 

 panying the seed a portion of the carpellary scale. Fam. 1. Pixaceae. 



Carpellary scales without bracts, mostly peltate or fleshy : 

 ovules erect : buds naked : wing of the seed, when 

 present, a portion of the testa. Fam. 2. Tumpeuaceae. 



Fajiily 1. PINACEAE. Pine Family. 



Mostly evergreen resiniferous shrubs or trees, typically conic, with 

 flaky or brittle bark. Leaves narrow and solitaiy, or usually several 

 together, each group Avith a sheath at the base. Ovulate aments with 

 bracted scales. Mature ovulate cone of dry scales. Seed often samara-like. 



1. PINUS [Touru.] L. Leaves needle-like, in 2 's or 3 's, sheathed at the 

 base, each with 2 fibro-vascular bundles. Cones spreading: scales at length 

 woody and spreading or reflexed, each with a dorsal, usually spine-armed 

 appendage. Seeds samaradike. — Pine. 



Bracts of the ovulate aments not awn-tipped : staminate aments over 3 cm. long : 

 resin-ducts of the leaf against the bundles. 1. P. curihaca. 



Bracts of the ovulate aments awn-tlpped : staminate aments less 



than 1.5 cm. long : resin-ducts of the leaf away from the bundles. 2. P. clausa. 



1. P. caribaea Morelet. Tree with coarse, flaky bark, branched near the top: 

 leaves in 2 's or 3 's, 18-30 cm. long, or sometimes shorter, bright-green: cones 

 broadly conic when closed, ovoid or oblong-ovoid when open, 8—14 cm. long or 

 rarely shorter, the scales with rather weak spines: seed-wing 2.5-3 cm. long or 

 rarely smaller. — Throughout, except in the Everglades and hammocks, or 

 occasionally scattered in hammocks and even on rock outcrops in the Everglades. 

 — F. K. {Bah., Cuba). — Cakibbean-pine. Slash-pine. Swamp-pine. 



2. P. clausa (Engelm.) Vasey. Tree with relatively or quite smooth bark, 

 branched near the base: leaves in 2's, 4-8 cm. long, deep-green: cones narrowly 

 conic when closed, ovoid when open. 4.5-6 cm. long, the scales with minute 

 brittle spines: seed-wing about 1.5 cm. long. — Inland sand-dunes or scrub. — 

 Sand-pine. Spruce-pine. 



Family 2. JTJNIPERACEAE. Juniper Family. 



Mostly evergreen, often resiniferous shrubs or trees, with fibrous, 

 shreddy bark. Leaves mainly appressed scales, sometimes subulate or 

 linear and spreading. Ovulate aments with bractless scales. Mature 

 ovulate cone of dry, often peltate scales, or baccate or drupaceous. Seeds 

 wingless or winged. 



Cones dry : scales woody, imbricate : seeds sharp-angled. 1. Taxodium. 



Cones berry-like ; scales fleshy : seeds not sharp-angled. 2. Sabina. 



1. TAXODIUM L. C. Eich. Roots producing erect conic "knees. " Leaves 

 often 2-ranked, deciduous: blades narrow. Staminate aments in panicles or 

 racemes. Ovulate aments with peltate scales. Cones spreading, the woody 

 scales stalked. — Cypress. 



1. T. distichum (L.) L. C. Rich. Tree with a conic trunk-baf-e, the bark nar- 

 rowly ridged: leaves 1-1.5 cm. long, often curved: staminate aments in droop- 

 ing clusters: cones globular, about 2.5 cm. in diameter. — Hammocks and Ever- 

 glades. — Bald-cypkess. 



2. SASINA Haller. Roots not producing "knees." Leaves scale-like and 

 imbricate, except sometimes on twigs, each with a gland on the back. Stami- 



