Luphorbia.] CXXII, EUPHORBIACE# (BROWN). 529 
filiform, minutely bifid at the very apex only.—¥H. Quintasii, Pax in 
Bolet. Soc. Brot. x. 156; Engl. Jahrb. xix. 124, and Bull. Herb. Boiss. 
vi. 742, and 2me sér. i. 46 ; De Wild. Etudes FI. Bas- et Moyen-Congo, ii. 
291. #. Zenkeri, Pax in Engl. Jahrb. xxiii. 536, and Bull. Herb. Boiss. 
vi. 741, 742, #. calabarica, Burkill in Kew Bulletin, 1901, 133. 
Upper Guinea. Southern Nigeria: Old Calabar River, Mann, 2315! 
Lower Guinea. Island of St. Thomas, Chevalier, 18751! Quintas. French 
Congo: by the River Alima, Zhollon, 951! Lower Congo: Kisantu, Gillet, 28. 
South Central. Belgian Congo: Kisinga, Vanderyst ex De Wildeman. 
In Bull. Herb. Boiss. vi. 741, Pax describes this and other species as having a 
thick fleshy trunk. This is an error, as the only one among all that he enumerates 
which has sucha trunk is 2. Marlothii, Pax (=E£. longibracteata, Pax= EH. Monteiri, 
Hk. f.). 
_, 08. E, tumbaensis, De Wild. Etudes Fl. Bas- et Moyen-Congo, 
li. 291. Stems cylindric, striate, glabrous, [greyish-brown. Leaves 
alternate, 2-31 in. long, 1-14 in. broad, obovate or oblong, subobtuse or 
shortly mucronate, tapering into a short petiole, those towards the 
apex of the stem passing into bracts. Jnvolucres in terminal groups 
of 3, with peduncles about 1 lin. long, campanulate, glabrous, with the 
lobes (? glands) deeply divided into 3 linear segments forked at the 
apex, 1 lin. long; glands 1-1} lin. in their greater diam., elliptic, 
entire. Ovary not exserted, glabrous; styles 1 lin. (or more?) long, 
united at the basal third, entire and slightly thickened at the apex. 
South Central. Belgian Congo: at Lake Tumba, Laurent. 
; T have not seen any species in which the lobes of the involucre are divided into 
linear forked segments as described by De Wildeman, but if, as I suspect, the glands are 
ae then this plant must be closely allied to, if not identical with, Z. Cervicornu, 
ail, 
69. EB. macrophylla, Pax in Engl. Jahrb. xix. 122. Probably 
perennial, about 1} ft. high in the specimens seen, with simple stems 
12-14 in, long and } in. thick, bearing at the apex a 3-5-rayed umbel, 
with simple or forked rays 3-8 in. long, when simple (from the abortion 
of one of the 2 branches which arise under each involucre), with 2-3 
distant flowering nodes, glabrous. Leaves on the stem rather few and 
somewhat distant, alternate, with a whorl of 3-5 at the base of the 
umbel, subcoriaceous, 23-6 in. long, 14-24 in. broad, those on the stem 
obovate or oblanceolate to elliptic, obtuse or rounded at the apex, 
apiculate, cuneately tapering to a subsessile or shortly petiolate base ; 
those of the whorl sessile, 2-3 of them usually somewhat oblong, 
deltoid-ovate or rhomboid-ovate, and the other or others cuneate- 
obovate, oblanceolate or elliptic-lanceolate, cuneate to nearly sub- 
truncate at the base, all glabrouson both sides. Stipules none. Bracts 
Sessile, 3-2 in. long, and as much or more in breadth, suborbicular or 
very broadly ovate, obtuse or rounded, apiculate, truncate or slightly 
cordate at the base, glabrous. Involucres on peduncles 14-2} lin. long, 
solitary, about 41 lin. in diam., and 2-22 lin. deep, broadly cup-shaped, 
glabrous, with 5 glands and 5 transversely rectangular lobes, minutely 
VOL. VI—sgxcr, x 2M 
