158 UMBELLIFER.E. (pABBLEY FAMILY.) 



» » Umbels capitate (flower sessile). 

 3. SANIOULA Fruit bristly, globular. Flowers polygamous. Involucel Done. 

 •1. ERYNGIUM. Fruit sraly, turbinate. Flowers perfect, bracted. Heads iuvolucelled. 



# » • Umbels compound (flowers pedicelled). 

 «- Fruit with bristly ribs : the bristles in a single row. 

 5 DAUCUS. Fruit ( J-rit>bed. Leaves finely 2 - 3-pinnate. 



+- ■>- Fruit smooth or slightly roughened. 

 ** Fruit wingless, laterally compressed, or twin. 



6. CICUTA. Flowers white. Fruit subglobose. Calyx-limb 5-toothed. 



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



leaves lanceolate. 



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



of the leaves filiform. 



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



leaves filiform. 



10. HELOSCIADIUM. 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. Z1ZIA. Flowers yellow. Fruit ovoid-oblong ; the intervals with 3 vittae. 



14. TIIASPIUM. Flowers yellow or dark purple. Fruit ovoid or oblong ; the intervals with 



single vittae. 



15. LIGUSTICUM. Flowers white. Fruit elliptical, with several vittte in each interval. 



■w- ++ 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. ARCIIAXGELICA. Carpels 3-ribbed on the back ; the intervals with 2 or more vittae. 



18. CONIOSELINUM. Carpels 3-wingcd 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. ill EROPII YLLTJM. Fruit linear-oblong, narrowed towards the apex. 



23. OSHORRHTZA. Fruit linear-clavate, narrowed towards the base. 



1. HYDROCOTYLE, Tourn. Marsh I'i nnywort. 



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



bicnlar. Carpels 5-ribbed, the dorsal and lateral ones often obsolete, the inter- 

 mediate ones enlarged. Vitto none. — Low marsh lull's, with slender creep- 

 ing stems, and peltate or reniform leaves. I'mheis small, axillary. Flowers 



white. 



1. H. Americana, L. Smooth ; leaves orbicular reniform, erenntelv 7- 

 lobedj umhels sessile, 3 - 5-flowered ; fruit 2-rihhed. — Mountains of North 

 Carolina, and northwurd. July. — Stems stoloniferous. Leaves very thin. 

 glossy. 



