386 Order 63.— UMBELLIFERiE. 



Leaves various, those, of the stem generally biternate, of the branches ternato 

 Leaflets or segments 2 — i' long, 1 — 4" wide, linear or lance-linear, smooth, with 

 Blender teeth. Bulblets often numerous, opposite, and within the- axils of the 

 bracteatc petioles. Umbels terminal. Invol. 0. Umbellets of close, small, white, 

 fls., and slight involucels. Aug. 



26. HELIOSCIAD'IUIfl, Koch. (Gr. eXof, a marsh, caiddiov, an um- 

 brella or umbel.) Calyx limb obscurely 5-toothcd ; petals ovate, en- 

 tiro ; styles short; fruit laterally compressed, oval, not scaly; carpels 

 with 5 filiform ribs, the lateral ribs marginal ; intervals with single vit- 

 taj; carpophore free, undivided ; seed plano-convex. — Lvs. various. In- 

 vol. mostly none. Umbels opposite the lvs., mostly sessile. Fls. white. 



1 H. nodiflorum Koch. Procumbent, striato ; lvs. pinnate, Ifts. oblong, equally 

 serrate ; umbels sessile or on short peduncles ; invol. 0, or of 1, 2 or 3 bracts, in- 

 volucel G to 8-leaved, reflexed. — CD Sts. diffuse, 1 to 2f long, in wet places about 

 Charleston, S. C Apr. § Eur. (Sium L.) 



2 3. leptophyllum DC. Erect or diffusely branched ; lvs. ternaiely or somewhat 

 pinnatdy divided, with linear segm. ; umbellets pedunculate ; invol. and involucels 

 none; fr. roundish. — CD Savannah (Feay. Pond) to La. (Hale). Sts. 6' to 2f high- 

 Umbels many, sessile, often one, pedunculate. Fr. smaller than a mustard seed. 

 Jn., Jl. 



27. CRYPTOTVE^IA, DC. Hone-wort. (Gr. icpv-~u, to conceal, 

 raivia, a wreath or border, from the obsolete border of calyx.) Margin 

 of the calyx obsolete ; petals with an inflexed point ; fruit lincar-eblong 

 or ovatc-oblong, with slender styles; carpels with 5 obtuse ribs; carpo- 

 phore free, 2-parted ; vittae very narrow, twice as many as the ribs. — 

 U Lvs. 3 -parted, lobod and toothed. Umbels compound, with very 

 unequal rays. Invol. 0. Involucels few-leaved. Fls. white. 



C. Canadensis DC. Lvs. smooth ; lfts. or segm. rhomboid-ovate, distinct, en- 

 tiro or 2 to 3-lobed, doubly serrate, lateral ones oblique at base; umbels numer- 

 ous, irregular, axillary and terminal. — Common in moist woods.- St. erect, 1 to 

 2f high. Lower petioles 2 to 6' long, clasping. Lfts. 3, 2 to 3' long, 1 to 2' 

 wide, petiolulato. Umbels paniculate, of 3 to 5 very unequal rays. Umbellets 

 of <i to G unequal pedicels and minuto involucels. Fls. small, white. Fr. neajr 3'' 

 long, crowned with tho straight styles ^ as long. (Sison, L.) 



28. yETHlTSA, L. Fool's Parsley. (Gr. a'LOu, to burn ; on ac- 

 count of its poisonous acridity.) Calyx margin obsolete ; petals obcor- 

 datc, with an inflexed point ; fruit globous-ovate ; carpels with 5 acutely 

 carinated ribs, lateral ones marginal, broader ; intervals acutely angled, 

 with single vittae, coinmissure with 2. — CD Poisonous herbs. Invol. 0. 

 Involucels one-sided. Fls. white. 



2E. cynapium L. Lvs. bi- or tri-pinnately divided, segm. cuneate, obtuse; invo- 

 lucels S-leaved, pendulous, longer than the partial umbels. — In waste grounds, 

 N. Eng., not common. St. about 2f high, green, striate. Lvs. with numerous, 

 narrow, wedge-shaped segm., uniform, dark green, flit. Lfts. of the involucels 

 linear, long, deflected, and situated on the outside. Jl., Aug. — The plant some- 

 what resembles parsley, but is distinctly marked by tho involucels, and by its dis- 

 agreeable odor. It is said to bo poisonous. § Eur. 



29. LEPTOCAU'LIS, Nutt. (Gr. Xe-~6c;, slender, teavhex;, stem.) 

 Calyx limb obsolete ; petals ovate, entire ; fruit (often scaly) laterally 

 compressed, ovate, crowned with the short styles ; carpels 5-ribbed, lat- 

 eral ribs marginal; intervals with single vittse, commissure with 2; car- 

 pophore 2-c'eft at the tip; seed plano-convex. — (£) Herbs slender, smooth, 



