578 CXXII. EUPHORBIACEZ (BROWN). [ Euphorbia. 
mentioned in several places in Marloth, Kapland, aceording to a photograph so 
named, sent by Dr. Marloth to Mr. Berger, is a totally different plant with un- 
branched stems and much smaller or no spines, and is apparently the same as that 
above quoted in Engler’s Pflanzenreich. 
148. E. griseola, Pax in Engl. Jahrb. xxxiv. 375. A succulent 
bush, spiny and leafless. Branches less than 5 lin. in diam., elongated, 
decumbent, 5-angled; angles sinuate-toothed, with continuous grey 
horny margins; teeth about 4-5 lin. apart. Spines 3-4 lin. long, in 
pairs, grey, with black tips, with a pair of minute prickles at their base. 
“Involucre not described. Capsule small, about 1 lin. long and twice as 
much in diam., deeply 3-lobed as seen from above, with keeled lobes. 
The above is the original description of this plant, which was collected in South 
Africa at Lobatsi, in Bechuanaland (Marloth, 3413), and which I have not seen. 
But a specimen collected in Rhodesia and named by Pax as being a variety of 
E. griseola is as follows: 
Plantupto 8 ft. high. Branches (dried) $ in. in diam., 5-angled ; angles acute, 
toothed, with continuous horny grey margins and concave faces between them; 
teeth 23-5 lin, apart. Leaves rudimentary, 4-3 lin. long, ovate, acute, recurved, 
soon deciduous. Spines 3-4 lin. long, in pairs, widely diverging, grey, often blackish 
at the tips, with or without a pair of very minute or rudimentary prickles at their 
base. Cymes on peduncles 3-3 lin. long and $ lin. thick, with 3involueres. Bracts 
seale-like, oblong, rounded, minutely toothed. Involucre 13 lin. in diam., some- 
what funnel-shaped, glabrous, with 5 glands and 5 ereet subqnadrate fringed lobes 
overtopping them; glands contiguous, 2—} lin. in their greater diam., transversely 
oblong, entire. Ovary and capsule net seen. 
Mozamb. Distr. Rhodesia: Matoppo Hills, 5000 ft., Bugler, 28608 ! 
149. E. polyacantha, Boiss. Cent. Huphorb, 25. A succulent 
leafless spiny shrub 5 ft. high. Branches about $—} in. thick when 
dried, 4—5-angled usually with slight constrictions 3-1} 1n. apart, 
glabrous ; angles compressed, with small rounded teeth or crenations 
and continuous horny dark grey margins. Spines 1-24 lin. long, fs 
pairs about 2 lin. apart, widely diverging, often curved upwards, dat 
grey. Cymes arising midway between the spine-pairs, with 1-3 nw 
lucres, sessile. Bracts 1 lin. long, broadly ovate, obtuse, denticulate. 
Involueres sessile, 2 lin. in diam. or the lateral rather smaller, cup- 
shaped, glabrous, with 5 glands and 5 erect broadly cuneate or re 
fringed lobes; glands }-1 lin. in their greater diam., transversely 
oblong, entire. Ovary included, with a slightly 3-lobed calyx at its 
base, on a very short pedicel, glabrous; styles about 2 lin. long, boos 
to the middle and the united part included in the involucre, free par 
recurved-spreading , with 2 thickened lobes at the apex. Capsule eve 
seeds not seen.—Boiss, in DC. Prodr. xv. ii. 84; Pax in Engl. Jabr’ 
xxxiv. 70, partly. HZ. tetragona, A. Rich. Tent. Fl. Abyss. 11. 238, no 
of Haworth. 
Wile Land. Abyssinia: stony sides of mountains in a hot valley 20 
Jelajeranne, Schimper, 1790! Adowa, Quartin-Dillon and Petit, 416! 
Var. Rose.i, Pax in Engl. Jahrb. xxxix. 632. About 3 ft. high, with ascen 
-angled branches. Capsule brown. 
Wile Gand. Harar: Haramaja, 6500 {t., Rosen ex Pax. 
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