158 UMBELLIFERiE. (PARSLET FAMILY.) 



* * Umbels capitate (flower sessile). 



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



4. ERYNGIUSI. Fruit scaly, turbinate. Flowers perfect, bracted. Heads iavolucelled. 



# * * Umbels compound (flowers pedicelled). 

 •t- 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, 

 ■w- Fruit wingless, laterally compressed, or twin. 



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



7. CRYPTOT^NIA. Flowers white. Fruit oblong. Calyx-limb obsolete. Divisions of the 



leaves lanceolate. 



8. LEPTQCAULIS. 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. SIUM. 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 ; the intervals with 3 vittse. 



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



single Tittee. 



15. LIGUSTICUM. Flowers white. Fruit elliptical, with several vittse in each intervah 



++ ++ 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. ARCHANGELICA. Carpels 3-ribbed on the back . the intervals with 2 or more vittse. 



18. CONIOSELINUM. Carpels S-winged on the back ; the intervals with 2-3 vittse. 



= = Margins of the fruit single-winged. 



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



Leaves simple, terete. 



20. ARCIIEMORA. Fruit iis in No. 19. Leaves pinnate or ternate. 



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



woolly. 



$ 2. Inner face of the seed concave. 



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

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



1. HYDROCOTYLE, Toura. Marsh Pennywort. 



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

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

 mediate ones enlarged. Vittce none. — Loav marsh herbs, with slender creep- 

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

 white. 



1. H. Americana, L. Smooth; leaves orhicular-reniform, crenately 7- 

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

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

 glossy. 



