PARSLEY FAMILY 223 



1. Plant herb-like. 2-10 in. high ; upper leaves ovoid, 



in a whorl ; flower cluster resembling a flower, 



with 4-6 petal-like bracts, 1-2.5 cm. wide C. canadensis 



2. Shrubs with opposite leaves, 3-10 ft. high 



a. Leaves woolly beneath C. Balleyi 



b. Leaves smooth or sparsely hairy beneath C. stolonifera 



APIACEAE PARSLEY FAMILY 



Sepals 5, united and grown to the ovary, the lobes or teeth often in- 

 conspicuous, petals 5, on the margin of the calyx, often 2-lobed and some- 

 times irregular, stamens 5, ovary 2-celled, styles 2, often borne on a flat- 

 tened or conic base, the stylopodium, ovule 1 in each cell, fruit dry, of 2 

 carpels, usually separating, when ripe, along their faces, i. e. commissure, 

 often flattened parallel to the commissure, i. e., dorsally, or at right angles 

 to the commissure, i. e., laterally, or nearly round ; each carpel with 5 main 

 ribs and sometimes with 4 secondary ones, all or some of them often winged, 

 the wall of the carpel usually with oil-tubes in the intervals between the 

 ribs and on the side toward the commissure ; flowers perfect, sometimes 

 polygamous, in simple or compound umbels, rarely in head-like clusters ; 

 leaves alternate, simple to variously compound; herbs. 



1. Fruit with hooked bristles; leaves digitately di- 



vided Sanicula 



2. Fruit without hooked bristles ; leaves various 



a. Leaves simple, perfoliate Bupleuruu 



1). Leaves, or at least some of them, not simple 



(1) Fruit linear-club-shaped, usually bristly 



on the margins YVashixgtoxia 



(2) Fruit not linear-club-shaped and not bristly 

 (a) Fruit strongly flattened parallel to the 



commissure, i. e. dorsally 

 x. Oil-tubes solitary in the intervals 

 (x) Stylopodium conic 

 m. Stems 1-2 ft. high ; leaves pinnate. 



of 5-9 leaflets Oxypolis 



n. Stems 2-8 ft. high ; leaves ternate 



with 3 large leaflets Heracleum 



(y) Stylopodium flat or none 

 m. Plants stemmed, 1-4 ft. high 

 (in) Flowers white, greenish or 



purplish Axgelica 



(n) Flowers yellow Pastixaca 



