388 REPORT OF NEW JERSEY STATE MUSEUM. 



/. Plant prostrate, fleshy, flowers yellow. 



[Portulaca oleraceo]f 

 jj. Plant erect, juice milky or orange, petals 4 

 or 8-12. Papaveracece, p. 460 



ii. Sepals 4, leaves 3-foliate fruit a pod. 



Polanisia, p. 466 

 Hi. Sepals 5 (or occasionally 3). 



j. Flowers pendant, red and yellow with petals 

 produced into long spurs. Aquilegia, p. 452 

 jj. Flowers normal, no long spurs. 

 k. Flowers yellow. 



/. Fruit a dehiscent capsule. 



Helianthemum, p. 559 



II. Fruit a naked cluster of flattened 



achenes, each with a short style on 



its tip. Ranunculus, p. 450 



III. Fruit a cluster of seeds, often bristly, 



with persistent styles, calyx persistent 



at top or base. Rosaceee, p. 475 



kk. Flowers white or pink. 



Fruit a fleshy berry, formed of a num- 

 ber of separate segments or else a cluster 

 of dry seeds. Rosacea, p. 475 



dd. Stamens 10 or less, never twice as many as the petals. 



e. Plants covered with reddish glutinous hairs. Drosera, p. 468 



ee. Plants not covered with glutinous hairs. 

 ■/. Flowers very irregular. 



g. Sepals petal-like, enlarged into a swollen spurred sac. 



Impatiens, p. 545 



gg. Petals 5, two upper ones larger and somewhat reflexed, 



lower one spurred or gibbose at base. Viola, p. 564 



ggg. Petals 5, single upper petal largest and reflexed, two 



lower ones united in a keel, enclosing the stamens and 



pistil. Papilionacece. p. 494 



gggg. Petals 3, lower one keeled, others lateral, flaring. 



Polygala, p. 520 

 SSSSS- Petals 4, forming a sort of sac, enlarged at base and 

 narrowed to a slightly flaring tip, pendant. 



PumariacecE, p. 461 



SSSSSS- Corolla S-parted, a crown of S hooded bodies, filaments 



united into a tube which encloses the pistil, juice milky. 



Aescl'epiadacece, p. 646 

 ff. Flowers regular, i. e., petals all alike, or essentially so. 

 g. Flowers small in umbels, heads or panicles. 



Araliacece, p. 589 

 hh. Fruits dry, usually flattened, splitting into two. 



Umhellifera, p. 590 



t Purslane, a common garden weed. 



