6*2 PENTANDRIA DIGYNIA. [CI. 5. 



roundish, deeply toothed. Umbels stalked, opposite to the 

 leaves. Stem creeping. 

 Watery pl.2£.G — 8. Still smaller. Gen. Sfpart. bract, of many leaves. 



5. S. inundation, Sison inund. 4. 227. (Least W.) Leaves pinnate, 



cut; the lowermost in many compound capillary segments. 

 Umbels five-flowered, in pairs. 

 Pools and ditches. If ? 5. Procumbent or floating. 



6. S. verticillatum, Sison vert., 6. 395. (Whorled W.) Leaflets 



in numerous, linear, almost capillary, whorled segments. 

 Salt marshes, in the N. and W. If. 7, 8. M. fleshy, spindle- 

 shaped. Stems erect, 1 — H/! 



148. SfSON. Honewort. 



1. S. Amomum, 14. 954. (Hedge H.) Leaves pinnate ; the upper 



ones ternate. Umbels erect, with about four general rays. Styles 

 globose at the base. 

 Moist marly soil. 0. 8. Stem Sf. branched. Leafl. ovate, cut. 



2. S. segetum, 4. 228. (Corn H.) Leaves pinnate ; leaflets round- 



ish-ovate, numerous. Umbels drooping, irregularly aggregate. 

 Styles dilated and depressed at the base. 

 Chalky fields. ©. 8. Stern 12—18 in. rushy. Leaflets serrated. 



149. CICuTA. Cowbane. 



1. C. virosa, 7. 479. (Water C. Water Hemlock.) Leaves twice 

 ternate ; leaflets linear-lanceolate, decurrent. 

 Rivers and ditches. If . 8. Ranches nearly erect. Leaves serrated. 



150. JETHuSA. Fool's-parsley. 



1. JE. Cynapium, 17. 1192. (Common F.) Leaves uniform ; leaflets 

 wedge-shaped, decurrent, with lanceolate segments. 

 Cult, fields. 0. 7, 8. Leaves green, bipinnate, smooth. 



151. CONlUM. Hemlock. 



1. C. maculatum, 17. 1191. (Common H.) Stem polished and spot- 

 ted, much branched. 

 Hedges and waste gr. $ . 6, 7. 3—5/. L. repeatedly comp. shining. 

 Fl. white. 



152. CORIANDRUM. Coriander. 



1. C. sativum, 1. 67. (Common C.) Fruit globular ; each seed being 

 hemispherical. Leaflets of the lower leaves wedge-shaped. 

 Fields and dunghills ; not wild. . 6. Lower leaves pinn. ; upper 

 3-tern. linear. 



153. (ENANTHE. Water-dropwort. 

 1. (E.flstulosa, 6. 363. (Common W.) Root sending forth runners. 

 Stem-leaves pinnate, cylindrical, tubular. General bracteas 

 mostly wanting. 



