158 MANUAL OF POISONOUS PLANTS 



Trees or shrubs ; alternate, simple leaves ; flowers generally regular ; calyx 

 free from ovary, inferior ; corolla gamopetalous or polypetalous ; stamens borne 

 on tube, at base of corolla. Bbenales. 679 



Trees, shrubs, herbs or vines, generally with opposite leaves ; flowers regu- 

 lar; corolla generally gamopetalous, or rarely polypetalous or wanting; stamens 

 borne mostly in lower part of corolla, as many as lobes or fewer, alternate ; 

 ovaries 2 and distinct. Contortae. 670 



Rarely trees, shrubs, generally herbs ; corolla nearly always gamopetalous, 

 regular or irregular ; stamens adnate to corolla tube ; ovary one, superior com- 

 pound. Tubi florae. 698 



Herbs frequently acaulescent or caulescent with opposite or alternate leaves ; 

 flowers small, perfect, polygamous or monoecious ; calyx 4-parted ; corolla free : 

 stamens 2 or only 1; ovary sessile, superior, 1-2-celled or falsely more celled; 

 fruit a pyxis. Plantaginales. 739 



Plants with gamopetalous corolla ; stamens as many as corolla lobes ; and 

 alternate with them, or occasionally fewer, or twice as many; ovary compound 

 inferior, adnate to calyx tube or ovary 1 or more celled ; ovules 1 or more in 

 each cavity of ovary ; leaves opposite or verticillate. Rubiales. 740 



Herbs or rarely shrubs with gamopetalous corolla or occasionally petals 

 separate; stamens as many as corolla lobes or fewer; anthers generally united; 

 ovary inferior. Campanulatae. 748 



MYXOTHALLOPHYTA 



Fungus-like organisms without chlorphyll, regarded by some as animals ; 

 intermediate, in some respects, between animals and plants and hence called 

 Mycetozoa by Rostafinski. In their vegetative condition, they consist of naked 

 masses of protoplasm with many nuclei, the mass of protoplasm being called 

 the plasmodium which creeps about on the substrata changing in form and 

 thrusting out processes called pseudopodia which may later coalesce. After 



Fig. 20. Slime Mould (Trich- 

 ia varia). a. Before germina- 

 tion, b, c, d. Different stages 

 in germination. d, e. Amoe- 

 boid body with flagellum. After 

 DeBary. 



