1038 ADDENDA. 
43a. Euphorbia Pearsoni, V. /. Br. A herb, 1 ft. or more 
high, possibly annual, with the main stem in the specimen seen about 
4 in, long and 2 lin. thick, branching at the top. Branches 4-8 in. 
long, 1-1} lin. thick, erect from a curved basal part, terminating in a 
lax 1-3 times forked dichotomous or trichotomous cyme, glabrous, 
greyish. Leaves alternate on the undivided part of the branches, 
12-33 in. long, 4-3 in. broad, linear to lanceolate or narrowly oblong, 
those on the cyme opposite, very much shorter and mostly lanceolate, 
all acute or obtuse, apiculate, tapering to a sessile or subsessile base, 
entire or very minutely toothed on the margins, and some of the leaves, 
especially the lower, with a small very spreading subulate tooth on each 
side just above the base, glabrous on both sides, with the midrib slightly 
prominent and rounded at the base; stipules none. Involucre solitary, 
sessile at the nodes or forks or at the tips of short branches of the cyme, 
1-1} lin. in diam., cup-like, glabrous, with 4 glands and 5 small toothed 
lobes ; glands 14-3 lin. in their greater diam., transversely oblong, entire, 
apparently dark brown. Capsule oblong-trigonous, 13-2 lin. long, thinly 
sprinkled with very minute adpressed hairs or ultimately glabrous, 
exserted on a curved pedicel about twice as long as the involucre; 
styles free, $ lin. long, stout, bifid, erect. Seeds 14 lin. long, dorsally 
flattened, oblong, rugulose and longitudinally ribbed, whitish, with a 
cap-like brown caruncle margined with white. 
Lower Guinea. South Angola: in open forest near kilom. 108°5, on the 
Mossainedes Railway, Pearson, 2071! 
This is closely allied to EZ. pseudoholstii, Pax, from Somaliland, and has the 
peculiar teeth at the base of some of the leaves, characteristic of that species, but the 
habit of the plant is different, the branches divide into more evident cymes, the 
involucre is larger and glabrous and the seeds rugulose as well as grooved and more 
or less ribbed. 
52. Euphorbia verticillata. For the description given on p. 929 
of this volume, substitute the two following: 
52. Euphorbia verticillata, Pax in Bull. Herb. Boiss. 1re sér. V1. 
740. Rootstock a tuber, producing 1 or more annual stems branching 
into an umbel of 4-5 rays at the top, 24-12 in. bigh, minutely puberu- 
lous. Leaves alternate on the stem, a whorl of 5 at the base of the 
umbel and a whorl of 4 (bracts) under each involucre, all sessile ; those 
on the stem smaller than the others and the lowermost often scale-like, 
4-1 in. long, 14-5 lin. broad, ovate or ovate-lanceolate, acute; those o 
the whorls 4—1? in. long, 14-5 lin. broad, lanceolate, acute or pain 
narrowed at the base, with revolute margins, distinctly penniveined, 
with numerous veins on each side of the midrib, glabrous on both sides. 
Rays of the umbel simple or once divided into 1-3 smaller rays, minutely 
puberulous, Involucre solitary, terminal, closely sessile, 24 lin. in parse: 
cup-shaped, minutely puberulous, with 5 glands and 5 transversely 
oblong minutely toothed lobes; glands 1-1} lin. in their greater rei 
rather narrowly transverse-oblong, entire, with the inner margin — 
or rim-like. Ovary ovoid, tapering into the styles, shortly pagent 
from the involucre, minutely and densely puberulous, erect; styies 
