TYPHACEAE. 3 



nate aments solitary and terminal on branchlets. Ovulate aments with broad 

 scales. Cones erect, the fleshy scales not stalked. — Cedar. 



1. S. barbadensis (L.) Small. Tree with a tapering trunk and shreddy bark: 

 scaledike leaves 4-ranked, 1-4 mm. long, rather blunt, closely appressed : stami- 

 nate aments erect: cones ovoid or oval-ovoid, 3-4 mm. long. — Hammocks. — 

 {Cuba, Ant.) — Barbados-ced.\k. 



Class II. ANGIOSPERMAE. 



Carpel or pistil formed by the uniting 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 primnrv 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 nan'ow racemes or globular spikes. 

 Perianth of scales or bristles. Androecium of 2-7 stamens. Gynoeeium 

 1- or 2-carpellary. Fruit nut-like. 



Family 1. TYPHACEAE. Cat-tail Family. 



Racemes solitai-y and terminal, subtended by deciduous bracts, the 

 staminate portion uppermost. Perianth of bristles. Pistil stipitate: 

 stigma spatulate, oblong or i-homboidal. 



1. TYPHA [Tourn.] L. Erect herbs with sheathed stems. Leaves with 

 erect linear blades. Eacemes cylindric, the pistillate portion brown. 



1. T. angustifolia L. Plants 1..5-3 m. tall: leaf -blades mostly 15-20 mm. wide: 

 pistillate portion of the raceme 10-20 mm. thick.— Everglades and banks of 

 streams. — F. K. (Ber., Bah., Cuba, Ant.). — Cat-tail. 



Order NAIADALES. 



Perennial, aquatic or marsh herbs. Leaves various, sometimes mere 



phyllodia. Flowers usually symmetrical. Perianth wanting or imperfect. 



Androecium usually of 1— i stamens. Gynoeeium simple or several- 



carpellary. 



Gynoeeium of distinct carpels : stigmas disk-like or cup-like. 



Fam. 1. Zaxnichelliaceae. 

 Gynoeeium of united carpels : stigmas 2-4. slender. 

 Staminate flowers consisting of 2 anthers termi- 

 nating an elongate jjedicel : perianth wanting: 

 stigmas filiform : acaulescent plants with en- 

 tire leaf-blades. Fam. 2. Cymodoceaceab. 

 Staminate flowers sessile or nearly so, consisting 

 of an anther surrounded by a perianth : stigmas 

 subulate : caulescent plants with spiny-toothed 

 leaf-blades. Fam. 3 Naiadaceae. 



