PARSLEY FAMILY. 647 



Herb. Geol. Surv. Herb. Mohr. 



Type locality: "Hab. in Enropae cultis, agris, ruderatis." 



Economic uses: An extremely poisonous herb, the "Conium" of the United States 

 Pharmacopoeia. 



SIUM L. Sp. PL 1 : 251. 1753. 



About 10 species, temperate regions. Europe, South Africa. North America, 3. 

 Slum cicutaefolium J. F. Gmel. Syst. 2 : 482. 1791. WATER PARSNIP. 



Slum lineare Michx. Fl. Bor. Am. 1 : 167. 1803. 



Gray, Man. ed. 6, 207. Chap. Fl. 162. Coulter, Contr. Nat. Herb. 2 : 146. 



EASTERN RUSSIA, NORTHERN ASIA. 



Throughout North America from Labrador to the Gulf; from Florida to California. 



ALABAMA: Coast plain. Deep marshes. Mobile County. Flowers in June; 

 locally frequent. Perennial. Four to 6 feet high, submerged leaves pinnately 

 dissected. 



Type locality (J. G. Gmel. Fl. Sib.): "Nascitur ab Obo fluvio in omni ulteriori 

 Sibiria tarn humidis quam siccis locis." 



Herb. Geol. Surv. Herb. Mohr. 



APIUM L. Sp. PL 1 : 264. 1753. CELERY. 



Fourteen species, Europe. 

 Apium ammi (L.) Urban, Fl. Bras. 11, pt. 1 : 341, /. 91. 1879. MARSH PARSLEY. 



Sison ammi L. Sp. PI. 1 : 252. 1753. 



Heliosciadium leptophyllum DC. Prodr. 4 : 105. 1830. 



Apium leptophyllum F. Muell. ; Benth. Fl. Austral. 3 : 372. 1866. 



Chap. Fl. ed. 3, 178. Coulter, Contr. Nat. Herb. 2 : 147. Griseb. Fl. Brit. W. Ind. 308. 



WEST INDIES, MEXICO TO ARGENTINA, CHILE, AUSTRALIA. 



Louisianian area. Florida to Louisiana and western Texas. 



ALABAMA: Central Prairie region to Coast plain. A weed in damp waste places 

 and on borders of low fields. Tuscaloosa County. Flowers April, May; abundant 

 near the coast. Annual. 



Type locality: "Hab. in Apulia, Aegypto." 



Herb. Geol. Surv. Herb. Mohr. 



ZIZIA Koch, Nov. Act. Caes. Leop. Acad. 12 : 128. 1824. 



Three species, Atlantic North America. 

 Zizia cordata (Walt.) DC. Prodr. 4: 100. 1830. CORDATE-LEAVED ZIZIA. 



Smyrnium cordatum Walt. Fl. Car. 114. 1788. 



Thaspium trifoHatum var. apterum Gray, Man. ed. 2, 156. 1856. 



Ell. Sk. 1:359. Gray, Man. ed. 6, 208. Chap. Fl. ed. 3, 180. 



Carolinian area. West Virginia along the Alleghenies to Georgia. 



ALABAMA : Mountain region. Rich shady woods. Dekalb County, Lookout Moun- 

 tain, near Mentone, 1,600 feet. Lee County. Flowers yellow; June. Rare. Per- 

 ennial. 



Type locality : South Carolina. 



Herb. Geol. Surv. Herb. Mohr. 



CICUT A L. Sp. PL 1 : 255. 1753. 



About 12 species, temperate Europe, Asia, Mexico. North America, 8. 

 Cicuta curtisii Coult. & Rose, Contr. Nat. Herb. 7 : 97. 1900. 



Alleghenian to Louisianian area. Southern Virginia, southern Kentucky, North 

 Carolina (altitude 4,500 ft.) to Florida and Louisiana. 



ALABAMA: Over the State. In swamps. Talladega County, Sylacauga (Pollard <f- 

 Maxon}. Tuscaloosa and Mobile counties. 



Type locality: "Banks of streams, Duval County, Florida; collected by Curtiss." 



Herb. Geol. Surv. Herb. Mohr. 



DERINGA Adans. Fam. PL 2 : 498. 1763. 

 (CRYPTOTAENIA DC. M6m. Omb. 42. 1829.) 

 One species. 



Deringa canadensis (L.) Kuntze, Rev. Gen. PL 1 : 266. 1891. HORNWORT. 



Sison canadensc L. Sp. PI. 1 : 252. 1753. 

 Chaerophyllutii canadense Grants, Class. Umb. 79. 1767. 



