132 



SWEET CICELY. 



The leaves are alternate, large, decompound bi or tri- 

 ternate (the terminal divisions pinnatifid or pinnate), the 

 radical one on a long petiole, the others nearly or quite ses- 

 sile, leaflets thin, ovate, pointed, incisely toothed, sparingly 

 pubescent. The petioles are peculiar, being flattened or 

 winged below and so embracing or sheathing the stem. 



The Inflorescence is in compound umbels, usually two 

 together, terminating the stem and branches. Each com- 

 pound umbel consists of 3 to 6 simple ones (umbellets), whose 

 stalks are called rays. At the base of the umbel, are several 



FIG. XXXIII. Osmorhiza longistylis : 3, the flower ; 5, the fruit ; 3, a cremocarp ; 

 7, a cremocarp opening, on the carpophore ; 4, the short styles of O. brevistylis : l t 

 cremocarp of Carrot ; 2, the same in a cross-section. 



(1 3) narrow bracts more or less leaf-like an involucre. 

 Also at the base of each umbellet, is a whorl of oblong bract- 

 lets bordered with hairs (ciliate) the involucel. 



The Flowers in each umbellet are about 5. Do you 

 miss the calyx ? No sepals appear ; but under the flower, at 

 the top of the pedicel, is a swelling which we may regard as 

 the calyx-tube adhering to, and inclosing the ovary ; while 



