30 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Fruit a juicy drupe or the seeds with a fleshy coat; corolla present. 



Leaflets 2 or 3-lobed, numerous; flowers in racemes or panicles; petala 



distinct Caulophyllum (p. 161). 



Leaflets with numerous teeth, few or many; flowers in umbels; petals 



united ARALIACEAE (p. 215). 



Stems bearing normally 2 or more alternate leaves or 2 or more pairs of leaves. 



Leaves all or mostly opposite. 



Leaves of 5-7 digitate leaflets. Flowers very small, green; fruit an achene. 



Cannabis (p. 142). 

 Leaves pinnate or pinnately lobed. 



Flowers blue or white. Fruit a capsule, 



HYDROPHYLLACEAE (p. 236). 

 Flowers yellow or pink. 



Plants erect; flowers yellow; fruit a many-seeded capsule. 



Aureolaria (p. 253). 



Plants with long slender trailing branches; flowers pink; fruit 1-seeded, 



indehiscent Valeriana (p. 261). 



Leaves alternate. 



Stems climbing. Flowers blue or purple; leaves pinnate; fruit a red berry. 



Solanum (p. 248). 

 Stems not climbing. 



Corolla of united petals, blue or white. Leaves pinnate or pinnately 



lobed; fruit a capsule. 



Leaflets entire; style 1 Polemonium (p. 235). 



Leaflets toothed or lobed; styles 2... HYDROPHYLLACEAE (p. 236). 



Corolla of distinct or nearly distinct petals, or wanting. 



Corolla very irregular, yellow or pink, some of the petala spurred. 



Glabrous annuals; fruit dry; leaflets many. 



FUMARIACEAE (p. 163). 

 Corolla regular. 



Leaflets (3) obcordate, entire, notched at the apex. Flowers yellow, 



in cymes; fruit a capsule Xanthoxalis (p. 191). 



Leaflets not obcordate and entire. 



Leaves with 5-7 palmate equal leaflets. Plants viscid-pubescent; 



petals 4, white or pink; fruit a long narrow pod. 



CAPPARIDACEAE (p. 170). 



Leaves not with 5-7 palmate equal leaflets a, aa. 



A. LEAVES WITH STIPULES. 



Flowers pink, the 5 petals small. Plants annual, pubescent; leaflets numerous; 



fruit dry Erodium (p. 190). 



Flowers yellow or white. 

 Leaflets entire, 10 or more; flowers yellow; fruit a legume. 



CAESALPINIACEAE (p. 180). 

 Leaflets toothed or lobed, often only 3; flowers yellow or white; fruit not a legume. 



ROSACEAE (p. 173). 



AA. LEAVES WITHOUT STIPULES. 



Petals and sepals each 3. Flowers minute, axillary; annual plants of wet soil, with 



pinnate leaves LIMNANTHACEAE (p. 198). 



Petals and sepals 4 or more or wanting, the sepals often united, sometimes only 2. 

 Flowere in regular umbels, email, yellow or white; fruit of 2 dry adherent carpels. 



Calyx entire or 5-toothed APIACEAE (p. 215). 



Flowers not in umbels; fruit not of 2 dry adherent carpels. 

 Sepals 2, falling as the flower opens; plants with white or yellow Juice, pubescent. 

 Flowers yellow or red; fruit a capsule PAPAVERACEAE (p. 162). 



