210 Plante Lindheimeriane. 
(615.) Crcura wacurATA, Linn. Banks of Comale Creek. 
July. Plant 4 to 7 feet high. 
404. DAUCOSMA, Engelm. & 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). Vallecule univittate : commissura plana bivittata ; 
ved latis rectis. Semen semiteres. Carpophorum biparti- 
m.— Herba annua, glabra, odore forte Dauci (unde 
do: 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. 
nea groove in t per surface, and a few obsolete spinulose serratures.” He 
marks, that “the tube of the calyx is not entirely clothed with lanceolate vesi- 
cles," as in irginianum, etc.; but I find that this character is not uniform. 
The palez of the receptacle are larger; their three spiny cusps stronger and o 
equal length, ae the — much less pointed than in Æ. Virginianum, but 
more so than . aquaticu 
a jenene (La m. Dict 4. P. 759): 
foliis lineari-Janceolatis plan 
uncinatis, radicalibusve ias. integerrimis, numos  spinulosis so laciniatis, 
involucralibus trifidis vel 3 —5-cuspidatis capitulo alibus; paleis 
receptaculi trinervatis, Ronin cuspide medio longiore lobos alysis fructiferi 
acuminato-aristatos subzequantibus. — E. lacustre Yrgititend, &oc., Pluk. A 
396, f. 3, E. aquaticum f. M E. Plukenetii, El. Sk. 1. p. 532. Wet eia 
margin of ponds and streams, New Jersey to Florida and Texas. Flowers * 
ugust and September in the Northern States; in July and June farther sou 
Plant one or two feet high.. 
3. E. PRÆALTUM: caule 4- 6- -pedali superne ramoso; foliis lanceolatis ys 
caule simplice vel apice eye] 
-e linearibus spinuloso-dentatis incisisve, involucralibus capitulo 2- 3-plo o lon- 
gioribus AIHvivYaus breviter 
subulato-acuminatos vix *quantibus. — E. n Michz. Fi. M f p. 163, non 
E. Virginianum, EW. Sk. 1. p. 343, non Lam. — In tide swamps, S. Carolina 
states le, ; E ooit 
in appearance, petioles 
peers nemen The ples te nowy mein EE pearance, on — 
