Grossera.] cxxii. euphorbiace.e (prain). 817 



Lateral nerves 8-10 pairs, leaf-margins entire or slightly 



denticulate; stamens over 20 ; buds subglobose . .1. G. panicttlata. 



Lateral nerves 13-15 pairs, leaf-margins distinctly toothed ; 



stamens under 20 ; buds distinctly ovoid . , , 2. G. major. 



1. G. paniculata. Fax in Engl, Jahrh. xxxiii. "281. Shrub 

 6-12 ft. high; twigs finely adpressed-pubescent. Leaves distinctly 

 petioled, firmly membranous or chartaceous, obovate-oblong, shortly 

 and abruptly acuminate, narrowed from about the middle to a cuneate 

 or rounded base with two prominent glands at the junction with the 

 petiole, margin entire or very shortly denticulate, 5-11 in. long, 1 J-4 in. 

 wide, glabrous ; main nerves 8-10 on each side, slightly raised beneath ; 

 petiole f-lj in. long, glabrous, thickened near the apex. Flowers white, 

 in terminal panicles 6-12 in. long; branches 1-1 J in. apart, 3-0 in. 

 long, naked in the lower half, with short ternary branchlets i-i in. long ; 

 bracts and bracteoles minute, ovate, acute, finely puberulous like the 

 rhachis and branches ; pedicel glabrous, y^ in. long. Male : Calyx 

 globose or subglobose, closed in bud, yV^T-r ^"* across, splitting into 2 

 or at times 3 valvate segments, glabrous externally, thinly membranous. 

 Petals 5, contorted-imbricate, wide-ovate. Stamens 4-seriate, 5 to each 

 whorl, on the elongated glabrous receptacle, with 2-3 terminal and 

 central ; base of the receptacle surrounded by 5 extra-staminal glands 

 resembling sessile much-modified anthers, alternate with the filaments 

 of the lowest 5 stamens and with the petals. Female panicles like the 

 males but with shorter branches and with the tertiary branchlets bearing 

 each a solitary flower, its pedicel ultimately ^ in. long. Calyx-lobes 

 imbricate. Petals narrow oblong, much exceeding the calyx-lobes, white. 

 Ovary glabrous ; styles at length spreading, 2-partite to the middle. 

 Capsule f in. wide. Seed not seen ripe. — Fourneaua ohovata, Pierre 

 MSS. 



Upper Guinea. Cameroons : Bipinde, Zenker, 1741 ! 1760 ! 2070 ! 2376 ! 

 3050! 3088 J 3125! 3372! 3460! 3532! 



Iiower Guinea. Gaboon : near Libreville, Klaine, 1927 ! 3106 ! Munda, 

 Sibange Farm, Soyaux, 82 ! Angom, 70 miles east of Gaboon, Bates, 557 ! Ufoa, 

 85 miles east of Gaboon, Bates, 539 ! and without precise locality. Spire, 73 ! 146 



2. G. major. Pax in Engl. Jahrh. xxxiii. 282. Shrub ; twigs 

 glabrous. Leaves distinctly petioled, firmly membranous or chartaceous, 

 obovate-oblong, stoutly and abruptly acuminate, narrowed from above 

 the middle to a cuneate base, with two prominent glands at the junction 

 with the petiole, margin distinctly denticulate, 10-12 in. long, 3J-4J in. 

 wide, glabrous; main nerves 13-15 on each side, distinctly raised 

 beneath; petiole 1J-2J in. long, glabrous, thickened near the apex. 

 Flowers white, in terminal panicles, 9-18 in. long; branches 1-1 J in. 

 apart, 3-6 in. long, naked in the lower half, with ternary branchlets 

 J-IJ in. long; bracts and bracteoles minute, lanceolate, glabrous like 

 the rhachis and branches; pedicels glabrous, J- J in. long. Male: 

 Calyx ovoid, subacute, closed in bud, \ in. across, \ in. long, splitting 

 into 2-3 valvate segments, glabrous, thinly membranous. Petals 5, 



VOL. VI. SECT. I 2d 



