574 cxxii. EUPHORBIACE-E (bkow.n). [JtJupkorbia. 



cuneately subquadrate lobes, fringe-toothed along their truncate top ; 

 o-lands about | lin. in their greater diam., transversely oblong, entire, 

 yellowish. Ovary glabrous ; styles about ]J lin. long, shortly united 

 at the base, thickened and somewhat capitate at the apex. Capsule 

 not seen, very shortly pedicellate, shortly exserted, ^ in. long, glabrous; 

 styles united for ^ of their length, entire at the apex (lliern). — E. 

 heteracanthu, Pax in Engl. Jahrb. xxxiv. 83. 



]bower Guinea. Angola: Mossamcdes ; bt'tween Kmbuluco and Kasimba, 

 Gossa-cilcr, 1723 ! near the River Maioniba at Peilra de Sal, frociuent, Welivitsch, 

 6-42 ! Ben^^iiella ; decomposed granite rocks some 20 miles from tbe ocean, Qossweiler I 

 Huilla, Aidanes, 129! 



1:^)8. E. nigrispina, N. E. Br. A succulent leafless spiny bushy 

 plant. P>ranches when dried \-\ in. in diani., 4-angled, apparently with 

 nearly flat sides, angles with continuous horny dark brown margins, 

 perhaps grey with age, glaucous. Spines ^-| in. long, needle-like, 

 blackish, in pairs J-| in. apart, widely diverging, with a pair of minute 

 prickles \ lin. 'long or less just under the flowering-eyes, which are 

 seated 1-2 lin. above the base of the spines. Involucres M together, 

 sessile, U- lin. in diam., cup-shaped, glabrous, with the glands united 

 into a continuous rim having 5 slight notches, but not distinctly lobed, 

 and the membranous inner lobes distant, broadly cuneate or subquadrate, 

 toothed. Capsule fallen away, erect, its pedicel not exserted from the 

 involucre, stout, with a rudimentary 3-lobed or 3-angled calyx at its 

 apex. 



irile Ziand. Somaliland : Web Karanle, Riva, 929 ! 



130. E. quadrangularis, Pax In Emjl.Jahrh. xix. 111). Branches 

 or stems succulent, leafless, spiny, ^-'y lin. in diam. when dried, appa- 

 rently 4-angled and glaucous, angles much compressed, toothed ; teeth 

 1 lin. or less long, broadly deltoid, equally sloping above and below 

 from the apex. Leaves rudimentary, about \ lin. long, ovate, acute, 

 soon deciduous. Spines 1-2 lin. long, slender, in pairs 5-6 lin. apart, 

 diverging, dark grey, with a pair of minute prickles beside the leaf- 

 scars above them, on narrow horny grey shields decurrent in an acute 

 point nearly or quite to the flowering eyes below, so as to form a nearly 

 or quite continuous narrow horny margin \-\ lin. broad to the stem- 

 angles. Flowering-eyes about 2 lin. above the spine-pairs. Cymes 

 sessile or subsessile, at first with 3 involucres, but the sessile male 

 central one soon falling away, leaving the lateral hermaphrodite pair 

 diverging on cyme-branches J-| lin. long, glabrous. Bracts half as 

 long as tha involucre, scale-like, thin. Involucre 2 J lin. in diam., 

 obconic-cup-shaped, glabrous, with a dark purple crinkled or undulating 

 rim, formed of 5 broad transverse entire glands, overlapping or only 

 separated by shallow cuts, having a powdery (yellowish ?) substance on 

 their inner surface, surrounding 5 broad transverse denticulate purple 

 lobes. Ovary included in the involucre, subsessile, with the calyx 

 reduced to a mere rim, glabrous; styles about \\ lin. long, slender, 

 united at the base, tiien ascending and revolute at the tips, with slightly 



I 



