158 DMBSLLIPBRjB. (parsley family.) 



* * Umbels capitate (flower sessile). 

 8. SANICULA Fruit bristly, globular. Flowers polygamous. Involucel none. 

 4. EltYNUlUM. Fruit scaly, turbinate. Flowers perfect, bracted. Heads iuvolucelled. 



# * * Umbels compound (flowers pcdicelled). 

 +- Fruit with bristly ribs ; the bristles in a single row. 

 6 DAUCUS. Fruit 9-ribbed. Leaves finely 2 - 3-pinnate. 



+- -»- Fruit smooth or slightly roughened. 

 •m- Fruit wingless, laterally compressed, or twin. 



6. CTCUTA. Flowers white. Fruit subglobosc. Calyx-limb 5-toothed. 



7. CRYPTOTJENIA. Flowers white. Fruit oblong. Calyx-limb obsolete. Divisions of the 



leaves lanceolate. 



8. LEFTOCAULIS. Flowers white. Fruit ovate, rough Calyx-limb obsolete. Divisions 



of the leaves filiform. 



9. DISCOPLEUKA. Flowers white. Fruit ovoid. Calyx-limb 5-toothed. Divisions of the 



leaves filiform. 



10. HELOSC1ADIUM. Flowers white. Fruit oblong. Calyx-limb obsolete. Involucre 1 3- 



leaved, or none. 



11. S1UM. Flowers white. Fruit globose. Calyx-teeth minute or none. Involucre 5-6- 



leaved. Leaves pinnate 



12. BUPLEURUM. Flowers yellow. Fruit ovoid-oblong. Leaves simple. 



13. ZIZIA. Flowers yellow. Fruit ovoid-oblong j the intervals with 3 vittae. 



14. THASPIUM. Flowers yellow or dark purple. Kruit ovoid or oblong ; the intervals with 



single vittae. 



15. L1GUSTICUM. Flowers white. Fruit elliptical, with several vittae in each interval. 



++ ++ Fruit dorsally compressed, winged on the margins. 

 = Margins of the fruit double-winged. Flowers white. Leaves pinnately compound. 



16. ANGELICA. Carpels 3-ribbed on the back ; the intervals with single vittae. 



17. ARCIIANGELTCA. Carpels 3-ribbed on the back ; the intervals with 2 or more vittae. 



18. CONIOSELIXUM. Carpels 3-winged on the back ; the intervals with 2-3 vittae. 



= = Margins of the fruit single-winged. 



19. TIEDEMANNIA Fruit broadly winged. Marginal wings remote from the 3 dorsal ones. 



Leaves simple, terete. 



20. ARCIIEMORA. Fruit as in No. 19- Leaves pinnate or ternate. 



21. 1IERACLEUM. Fruit with all the ribs equidistant. Marginal flowers sterile. Plant 



woolly. 



§ 2. Inner face of the seed concave. 



22. CILEROPIIYLLUM. Fruit linear-oblong, narrowed towards the apex. 



23. OSMORRII1ZA. Fruit lincar-clavate, narrowed towards the base. 



1. HYDROCOTYLE, Tourn. Marsh Pennywort. 



Calyx-teeth obsolete. Petals not incurved. Fruit laterally compressed, or- 

 bicular. Carpels 5-ribbcd, the dorsal and lateral ones often obsolete, the inter- 

 mediate ones enlarged. Vittae none. — Low marsh herbs, with slender creep- 

 ing stems, and peltate or reniform leaves. Umbels small, axillary. Flowers 

 white. 



l. H. Americana, L. Smooth ; leaves orbicular-reniform, crenatel; 7- 

 lobed ; umbels sessile, 3 - 5-flowcred ; fruit 2-ribbed. — Mountains of North 

 Carolina, and northward. July. — Stems stolouiieious. Leaves very thin, 

 glossy. 



