FLORA OF THE FLORIDA KEYS 



Subking-dom SPERMATOPHYTA. Seed Plants. 

 Plants producing flowers and seeds. A seed contains an embryo 

 consisting of a short stem (radicle or caulicle), one, two, or several 

 rudimentary leaves (cotyledons) and a terminal bud (plumule). 



Ovules, and seeds, borne on the face of a scale : stigma none. Class I. Gymnospehmae. 

 Ovules, and seeds, borne in a closed cavity : stigma present. Class II. Angiospekmae. 



Class I. GYMNOSPERMAE. Cone Plants. 

 Carpel or pistil represented by a scale upon the face of which 

 are borne the ovules and upon which the naked seeds mature. 



Plants growing by a terminal bud only : leaves circinate ; blades pinnate. 



Order 1. Ctcadales. 

 Plants growing by a terminal and lateral buds : leaves not 



circinate ; blades not pinnate. Order 2. Finales. 



Order CYCADALES. 



Palm-like or feru-like plants. Leaves in a crown : blades pinnate, 

 riowers in cones of approximate scales or on slightly modified leaves. 

 Staminate cones with scales bearing several pollen-sacs. Ovulate cones 

 with two or more ovules on each scale. Seed dntpe-like or nut-like. 



I Family 1. CYCADACEAE. Sago-palm Family. 



Dioecious plants with subterranean or erect stems. Leaves spreading : 

 leaflets with 1 or several ribs or veins. Staminate cones deciduous. Ovu- 

 late leaves or cones persistent. Seeds exposed on the marains of the ovu- 

 late leaf or enclosed in a cone. 



/ 1. ZAMIA L. Plants with subterranean or erect stems. Leaflets separated, 

 manifestly jointed to the rachis, several-many-v.eined. Scales of the ovulate 

 aments flat, depressed or swollen at the apex. Ovules and seeds sessile, included. 



1. Z. florldana DC. Leaves 4-9.5 dm. long: leaflets 28-40, the blades linear, 

 9-14 em. long, 3-7 mm. wide: mature pistillate cones oblong, densely pubescent 

 with dark-brown persistent hairs; the seed-bearing scales thick. — Pinelands, L. 

 keys. — [E. K.] — Coontie. Comfort-root. Comptie. Florida-arrowroot. 



Order FINALES. 



Shrubs or trees. Leaves alternate, sometimes clustei'ed or in sheathed 

 bundles : blades scale-like, narrow, or needle-like, or rarely dilated. Flowers 

 mainly monoecious, in cones of spirally imbricate scales, or in Taxaceae 



Flora of Florida Keys 1. 



