UMBELLIFER-3E. 



137 



2. C. bulbifera, L. Bulbous Hemlock. 



Leaves tomato and biternate; leaflets linear, remotely toothed or cut-lobed; 

 upper axils bearing bulbs; umbels terminal and axillary, small. 



Wet meadows and swamps: rare. Aug. Stem 2 to 4 feet high, round, smooth 

 an I Blender, striate, green, branching. Invducels of 3 to 5 subulate leaves. Umbel- 

 leLs of small, close, white flowers. 



11. STUM. Linn. Water Parsnip. 



Celtic siu, water; in allusion to its place of grewth^ 



Calyx with the margin 5-toothed or obsolete. Petals 

 obcordatc, with an inflexed point. Styles divergent, re- 

 flexed. Fruit ovate or globular, flattish or contracted at 

 the sides; carpels with $ rather obtuse ribs; interstice with 

 several vittse. — Marsh or aquatic perennials, with grooved- 

 angled stems ; simply pinnule leaves, lanceolate serrate leaflets 

 (immersed ones cut into capillary divisions); several-leaved 

 'involucres, and perfect umbels of white flowers. 



1. S. latieolium, L. "Water Parsnip. 



■■ angular and suleate; I olate. pointed serrate, sessile 



smooth, sometimes pinnati 



.'ips. July — Sept. A tall plant found in ditches and swamps. Stem 3 to 5 

 feel high, smooth, bellow, about 7 ; • ts 7 toll, 4 to 7 inches long, 



1 to 2 broad, equally serrate. Petioles clasping the stem. Umbels long, with many- 

 flowered rays. Flowers small, white. 



2. S. LINEARE, Michx. Narrow-leaved Water Parsnip. 



Leaflets narrowly lanceolate or linear, finely and sharply serrate, acute; calyx- 

 teeth obsolete. 



Swamps: more common than the last. July, Aug. Sir.ra 2 to 4 feet high, 

 smooth, about 7-angled: Leaflets 9 to 11, '2 to •!- inches long, \4 to x /?, wide*, Jr.volu- 

 ere of 5 or 6 linear bracts. UmbeHeis with numerous small white flowers. Fruit 

 verj strongly ribbed, crjwned with the broad, yellowish stylopodium. 



12. CRYPTOTJENIA. DC Honewort. 



Qr. kmptos, hidden, and lainia. a fillet, from the concealed vitfae. 



Calyx with the margin obsolete. Petals obovate, with an 

 inflexed point. Fruit oblong, contracted at the sides; 

 carpels equally 5-ribbed ; vitice very slender, one in each 

 interstice, and one under each rib. — A perennial smooth herb, 

 with thin 3 -parted lobed and toothed leaves; no involucre, 

 few-leaved involucels, compound umbels with very unequal 

 rays, and white flowers. 



C. Canadense, DC. Canadian Honewort. 



Leaflets rhomboid-ovate, dictinct, entire or 2 to 3-lobed, doubly serrate, lateral 

 ones oblique at base. 



