268 BOTANICAL GAZETTE [OCTOBER | 
leaves sessile, pale above, glaucous beneath, strongly oval to ovate, 
few veined, 3 long, 1.6™ broad or smaller: inflorescence solitary at 
the bifurcations of the branchlets, peduncles filiform, 8™"-2™ long ; 
appendages drooping, broadly oval, 3.2™ long, 4™™ broad. Alabama, 
Dr. Vasey, 1880. 
Var. . Joori Norton, Rept. Mo. Bot. Gard., 9: 155. 1898.— Low, 
10-14 high, branching from the base, glabrous or pubescent: leaves 
ovate or oblong, subpetiolate, 2.2 long, 8-1ro™™ broad : inflorescence sol- 
itary in the bifurcations of the upper branchlets, peduncles filiform, 1o- 
25"" long; appendages elliptical, 3™™ long, 2™ broad. Milano, 
Texas, Dr. Joor. 
Var. 0. apocynifolia (Small). Luphorbia apocynifolia Small, Bull. 
Torr. Club 25 : 467. 1898.— Leaves oblong, tapering at the base into a 
hairy petiole 3-6™ long ; inflorescence open umbelliform, rays ascend- 
ing, wiry, dichotomous ; involucre small, globular-bell shaped, hairy in 
our specimens, glands roseate like those of vars. paniculata and angustt- 
folia; appendages 0.7 to 1™ long, 0.9 to 1.2™" broad, shaped like 
those of var. paniculata. 
This form manifestly connects var. angustifolia, through Pollard’s 
Mississippi 1289 (1896), with var. paniculata; it has no characters suf- 
ficiently prominent to consider it a species, while its seeds are not dis- 
tinguished from those of Z. corollata. Florida, Nash no. 2567 (1895), 
distributed as Z. corollata paniculata. . 
Euphorbia Nelsonii, sp. nov.— Fruticosa, glabra, longe et corymbose 
ramosa, ramis teretis, internodiis longis, cortex maculatis, macule 
oblongis roseus. Foliis inferioris fasciculatis, petioliis longis filamen- 
tosis, pagina tenuis ovato-cuneatis, obtusis, apiculatis, foliis floralibus 
Oppositis, orbiculatis petiolis limbum aequantis. Involucriis terminali- 
bus corymbosis, pedunculatis, campanulatis glabris, lobis latis truncatis 
irregulariter 6—8-fimbriatis, glandulis 5, transversis oblongis integris, 
‘ appendicibus minutis vel nullus. Stylis longis revoluto-circinalis. 
Capsule luride profunde tri-sulcate, semine sub-globosis pallide-fuscis, 
scrobiculatis, linea media nigra geminatis, rugee anastomosantis tuber- 
culatis 2™ long, r.9™ lat. 
Ad Insula Maria Madre, Insule Tres Marie, Mexici, coll. E. W. 
Nelson m. Maius 1897, num. 4284. Internodii 1o—12™ long., petiolo 
3-4.5™; pagina 1.5~2 long, 1.3-1.5% lat., prox. Z. petiolaria. 
Euphorbia Hellerii, sp. nov.— Glabra, caulibus pluries ascendentibus 
laxis foliatis, foliis alternatis spathulatis petiolulatis obtusis, umbelle 3- 
