^^^- 233 



693. Leaves 'broadly lanceolate, opposite. Styles usual- 

 ly 4. Stamens 10 (sometimes 5 only fertile). Pod twice 

 the length of the . calyx. (Petals sometimes present.) 

 Stems flaccid, many times forked, finally resolved into a 

 leafy cyme. Stipules none. Stellaria borealis, Big. 



Leaves spatulate, whorled at the joints. Perianth 

 of 5 sepals, white inside. Stigmas usually 3, alternate with 

 the 3 ovary-cells (or sometimes 5, and alternate with the 

 sepals). Herbs prostrate, in patches. Pedicels 1-flowered, 

 fanning sessile umbels at the joints. Stipules obsolete. 



MoUugo verticillata, L. 



693. ,(^®^0 Submersed aquatics. Flowers monoecious, 

 polygamous, or sometimes mostly perfect. Stigmas 4, pubes- 

 cent, sessile 828 



Non-aquatics 694 



694. Styles 2, or more 695 



Style 1 698 



695. Stamens 8-10 697 



Stamens 5. Calyx-limb nearly entire. Flowers in 



simple or compound umbels, or in umbellate corymbs, or 

 panicles ' 696 



696. Styles 2, distinct or united at the base. Umbels 

 compound. Fruit dry, splitting in two, at maturity 290 



Styles 2-5, separate, or united into one. Fruit 

 fleshy, or berry-like. Umbels corymbed, or panicled, or sim- 

 ple. (Aralia &, Panax) 287. 



697. Leaves roundish, somewhat cordate, obscurely cre- 

 nate-lobed. Leaves chiefly opposite 689 



Leaves linear, opposite. The 5 sepals united be- 

 low in an indurated cup, enclosing the 1-seedcd utricle. .691 



698. Leaves alternate, rarely opposite. Involucre to 

 many flowers none. 699 



Leaves opposite. Calyx-limb obsolete. Petals and 

 stamens 4. "Drupe small, with a 2-seeded stone. Cyme (or 

 head) of flowers subtended by a 4 -leaved, white, rather 

 showy involucre. Upper leaves crowded into an apparent 

 whorl, in 6's or 4's. Stem 4 to 8 inches high 538 



