Dec, 1911.] The Classification of Plants, VII. 417 



TUBIFLORAE. 



Herbs, shrubs, or trees with hypogynous, sympetalous, occa- 

 sionally choripetalous or apetalous flowers; flowers normally 

 tetracyclic, usually with two united carpels; stamens united with 

 the corolla, as many as its lobes and alternate, or fewer. 



Synopsis. 



I. Corolla not scarious, nerved. 



1. Fruit usually a capsule, follicle, berry, drupe, or samara; 



carpels commonly several-to-many-seeded. 



a. Corolla regular; stamens usually of the same number 



as the corolla lobes. 



(a) Leaves alternate or opposite; ovularies not 



separating. Polemoniales. 



(b) Leaves usually opposite; ovularies frequently 



separating below, with a common style; if 

 not separating, usually with two cavities 

 or two placentae. Gentianales. 



b. Corolla mostly irregular or oblique; fertile stamens 



commonly fewer than the corolla lobes. 



Scrophulariales. 



2. Fruit indehiscent but usually splitting and fomiing -l 



nutlets around the style; carpels 1-2-seeded. Lamiales. 

 IL Corolla usually scarious, nerveless; calyx and corolla 4-lobed. 



Plantaginales. 



INFERAE. 



Mostly herbs, occasionally shrubs, trees, or lianas, with epi- 

 gynous, choripetalous or sympetalous, or rarely apetalous flowers; 

 stamens usually as many as the petals or corolla lobes and alter- 

 nate with them; carpels two or more, united; calyx often vestigial. 



Synopsis. 

 I. Anthers separate. 



1. Corolla choripetalous; flowers usually in umbels or cymes. 



Umbellaies. 



2. Corolla sympetalous. Rubiales. 



IL Anthers, with few exceptions, united; corolla sympetalous. 



1. Flowers not in involucrate heads. Campanulales. 



2. Flowers in dense involucrate heads; gynecium of two, or 



rarely three, united carpels, unilocular; seed one. 



Compositales. 



Phyla, Classes, and Subclasses of Plants. 

 Phylum L SCHIZOPHYTA. Fission Plants. 

 Class 1. Cyanophyceae. Blue-green Algae. 

 Class 2. Glaucocysteae. 

 Class 3. Schizomycetae. Fission Fungi. 

 Class 4. Myxoschizomycetae. Slime Bactera. 



