210 Plantce Lindheimeriance. 



(615.) Cicuta maculata, Linn. Banks of Comale Creek. 

 July. Plant 4 to 7 feet high. 



404. DAUCOSMA, Engelm. fy Gray. 



Calycis dentes 5- subulati, persistentes. Petala obovata, 

 emarginata, cum lacinula apice emarginato-biloba inflexa. Sty- 

 lopodium conicum, persistens ; stylis elongatis reflexis. Fruc- 

 tus ovoideus, ala angustissima crassa cinctus : mericarpia jugis 

 5 crassis obtusis (in fruct. juniore subduplicibus aut dorso 

 exaratis). Vallecula univittate : commissura plana bivittata ; 

 vittis latis rectis. Semen semiteres. Carpophorum biparti- 

 tum. — Herba annua, glabra, odore forte Dauci (unde 

 nomen) ; caulibus 2-3-pedalibus ramosis striatis farctis ; 

 foliis ternati-quinatisectis, segmentis tripartitis, lobis lacini- 

 atis venosis lanceolatis, seu fol. supremorum lineari-setaceis ; 

 involucri et involucelli phyllis plurimis 3 - 5-partitis setaceis 



3 or 4 lines wide at the base, thence tapering gradually to the apex. Ravenel de- 

 scribes them from the living plant as "terete, solid, but soft and spongy, with a 

 deep groove in the upper surface, and a few obsolete spinulose serratures." He 

 remarks, that " the tube of the calyx is not entirely clothed with lanceolate vesi- 

 cles " as in E. Virginianum, etc. ; but I find that this character is not uniform. 

 The palese of the receptacle are larger ; their three spiny cusps stronger and of 

 equal length, and the calyx-lobes much less pointed than in E. Virginianum, but 

 more so than in E. aquaticum. 



2. E. Virginianum {Lam. Did 4. p. 759) : caule simplice vel apice cymoso ; 

 foliis lineari-lanceolatis planis, inferioribus venulosis subspiuuloso-serratis dentibus 

 uncinatis, radicalibusve fere integerrimis, superioribus spinulosis seu laciniatis, 

 involucralibus trifidis vel 3-5-cuspidatis capitulo fructifero suhEequalihus ; paleis 

 receptaculi trinervatis, tricuspidatis, cuspide medio longiore lobos calycis fructiferi 

 acuminata aristatos subsequantibus. — E. lacustre Virginianum, &c, Pluk. Aim. t. 

 396, f. 3. E. aquaticum p. Linn. E. Plukenetii, Ell. Sk. 1. p. 582. Wet places, 

 margin of ponds and streams, New Jersey to Florida and Texas. Flowers in 

 August and September in the Northern States; in July and June farther south. 

 Plant one or two feet high. 



3. E. pRiEAi/ruM : caule 4- 6-pedali superne ramoso ; foliis lanceolatis planis 

 venosis serratis utrinque attenuatis, radicalibus magnis longe petiolatiscosta valida, 

 summis linearibus spinuloso-dentatis incisisve, involucralibus capitulo 2-3-plo lon- 

 gioribus ; paleis receptaculi trinervatis breviter tricuspidatis lobos calycis fructiferi 

 subulato-acuminatos vix aequantibus. — E. aquaticum, Michx. El. 1. p. 163, non 

 Linn. E. Virginianum, Ell. Sk. 1. p. 343, non Lam. — In tide swamps, S. Carolina 

 and Georgia; August. Michaux states he found it especially on Goose Creek, a 

 tributary of Cooper River, in the tide swamps of which it was gathered by Mr. 

 Ravenel. The lowest leaves are from one to two feet in length, and from 2h- 3 

 inches in breadlh, not unlike those of a Rumex in appearance, on petioles a foot 

 pr 18 inches in length. The paleae are nearly as in E. Virginianum. 



