BOTANY. 191 
lis elongato-linearibus revolutis integris ; foliis floralibus basi paullo dilatatis puniceis subinde 
circinatis ; glandulis 1-2 stipitatis cyathiformibus compressis margine revoluto sspe crenulatis 
involucri lobos laciniatos coloratos superantibus ; stylis brevibus purpureis erectis longe connatis, 
apice bifidis, stigmatibus acutis demum recurvis, Dry arroyas, Aqua Zarco, Sonora, May ; and 
Santa Cruz, Sept.; T'hurber, Ф Capt.E. K. Smith. Specimens incomplete, nearly a foot high. 
Leaves 3—4 inches long, scarcely more than a line wide ; floral leaves shorter and about 2 lines 
wide, deep crimson. Distinguished from E. heterophylla by the narrow revolute leaves, etc. 
Margin of involucre and styles also purplish. Capsule glabrous and seeds tuberculate, as in the 
allied species. 
EUPHORBIA RADIANS, Benth. Pl. Hartweg, р. 38. Plains between San Bernardino and Santa 
Cruz, Sonora, April; Capt. E. K. Smith. Dry valleys near Buena Vista, Mexico; Dr. Gregg, 
Dr. Wislizenus ; Mexico ; Berlandier, (No. 116 and 1375.) Root tuberous ; flowers in early spring, 
before the leafy shoots put out. 
EUPHORBIA ЕВГАХТНА, Benth. Bot. Sulph. p. 51. Sonora; Wright, (No. 1841?) 
$ IV. UMBELLAT.E. 
卫 UPHORBIA Уўквтєнти, Torr. Ё Gray, Bot. Pope's - On the San Felipe and the San Pedro, 
western Texas; Wright, (No. 1827.) 
EUPHORBIA MULTICAULIS, (nov. spec.) : annua seu biennis, multicaulis, humilis, erecta, glabra ; 
foliis lineari-oblanceolatis acutis mucronatis serrulatis basi angustata sessilibus ; umbellis tri- 
fidis, ramis bifidis, bracteis lanceolatis, superioribus ovato-lanceolatis acutis ; involucri glandulis 
tranverse ovatis; stylis basi liberis ad medium seu ultra bifidis ; capsule соссіз dorso verrucosis ; 
seminibus lenticularibus levibus fuscis. Sonora; Thurber. About a dozen stems form a taper- 
ing root, 6 inches high, and with erect branches; leaves 4-6 lines long, 1 line wide. Nearly 
allied to E. obtusata. 
EUPHORBIA DICTYOSPERMA, Fisch. & My. Ind. Sem. Рейгор. 1835. Е. Arkansana, Engelm. 
£ Gray, Pl. Lindh. 1, p. 26. Western Texas; Wright, Var. MEXICANA: annua seu plerumque 
biennis, e basi erecto-ramoso ; foliis versus apicem crenato-serratis, lobis involucri subintegris ; 
ovarii coccis dorso solum verrucosis. Valley of the Nagas, Balson de Mapimi, Dr. Gregg; 
western Texas ; Wright, (Хо. 1824.) + LEI0CcOCCA : capsulis levibus seu vix hinc inde verru- 
culosis. Texas; Drummond; II. 327. Near the Colorado, of Texas; Wright. 
EUPHORBIA iid (nov. spec.): annua, erecta, glaberrima ; foliis cuneatis obtusis seu ple- 
rumque retusis emarginatis obcordatisve ; umbellis trifidis ; bracteis spathulatis seu superioribus 
orbiculatis basi truncatis ; cornubus eld setaceis glandulam transversam æquantibus ; 
capsula dorso levi; seminibus facie ventrali 4-punctatis, dorsali leviusculis. Georgia; Boykin. 
Louisiana ; Hale. Texas; Lindheimer, Wright. Near E. Peplus as is the following species, 
but distinguished by the арын and the seeds. 
EUPHORBIA PEPLIDION (nov. spec.): annua, erecta, glaberrima, e „basi ramosissima; foliis 
confertis e basi angustata lineari-oblanceolatis obtusis; umbellis 3-fidis dichotomis, bracteis | 
lanceolatis acutis; cornubus involucri glandulam ipsam equantibus linearibus obtusis; capsule 
coccis obtusis non alatis semintbus facie ventrali 2-suleatis, dorsali punctato-exsculptis. Sandy 
soils, western Texas; Wright, (No. 1823.) A small plant, 3-4 inches high, much branched 
long. 
EUPHORBIA PEPLOIDES, Nutt. in Trans. Amer. Phil. Soc. (n. ser.) 5, p. 172, non Gouan. E. 
longicruris, Scheele in Linnea, 45, р. 152. Western Texas; scd itd 1822 2 Lindhei 
from the base, of the habit of E. exigua. Seeds very similar to those of E. Peplus, 0.6 une. 
