2 TYPHACEAE. 



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

 scales, or wholly or partially naked. 



'^ Family 1. PINACEAE. Pine Family. 



Mostly evergreen resiniferous shrubs or trees, typically conic, with 

 flaky or brittle bark. Leaves narrow and solitary, or usually several to- 

 gether, each group with a sheath at the base. Ovulate aments with braeted 

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



1. PINUS [Tourn.] 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 samara-like.- — Pine. 



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. — Common on some of the larger L. keys ; very rare on the U. keys. 

 — [E. K.] — (Bah., Cuba.) — Caribbean-pine. 



Class II. ANGIOSPERMAE. 

 Carpel, or pistil, formed by the union of the margins of one, 

 or of several, rudimentary leaves ; within the cavity thus formed the 

 ovules are borne and the seeds are matured. 



Cotyledon 1 : leaf-blades with the primary or lateral veins parallel : stem endogenous. 



1. MONOCOTYLEDONES. 



Cotyledons typically 2 : leaf-blades with the veins netted : 



stem exogenous. 2. Dicotyledones. 



Subclass 1. MONOCOTYLEDONES. 



Stem consisting of a ground mass of soft tissue in which bundles 

 of wood-cells are irregularly placed. Early leaves alternate. 



'^ Order PANDANALES. 



Perennial, aquatic or marsh herbs, with elongate rootstocks. Leaves 

 with narrow blades. Flowers in narrow racemes or globular spikes. Peri- 

 anth of scales or bristles. Androecium of 2-7 stamens. Gynoecium 1- or 

 2-carpellary. Fruit nut-like. 



Family 1. TYPHACEAE. Cat-tail Family. 



Racemes solitary and terminal, subtended by deciduous bracts, the 

 staminate portion uppermost. Perianth of bristles. Pistil stipitate : stigma 

 spatulate, oblong or rhomboidal. 



•' 1. TYPHA L. Erect herbs with sheathed stems. Leaves with erect linear 

 blades. Eacemes cylindric, the pistillate portion brown. 



