Monechma. | XCVIII. ACANTHACEE (CLARKE). 217 
$ in. long. Filaments glabrous; anther-cells round, one obliquely 
above the other, short-tailed, tail of the lower cell of medium length, 
terete, obtuse; pollen ellipsoid, without distinct tubercles. Ovary 
glabrous when young; style very thinly hairy. 
Mozamb. Dist. British Central Africa: Nyasaland, 2000~7000 ft, Whyte ! 
Twice collected; examples at 6000-7000 ft., hairy all over; those at 2000-6000 ft. 
nearly glabrate. 
8. M. depauperatum, C. 2. Clarke. Stem 3-5 ft. high ; branches 
more or less angular and hairy. Leaves up to 3 by 1 in., elliptic- 
lanceolate, subacute at either end, sparsely hairy or glabrate above, 
hairy on the nerves beneath; petioles 0—} in. long. Spikes 14-4 in. 
long, elongated in fruit, terminal; bracts } by 4-1 in., elliptic or oblong, 
obtuse or subacute, minutely pubescent, not margined ; bracteoles 0. 
Sepals 5, subequal, 1} in. long, linear-lanceolate, minutely pubescent. 
Corolla } in. long, pale yellow (Barter). Filaments glabrous; anther- 
cells ellipsoid, one much below the other, long-tailed, tail clavate sub- 
bifid at the tip; pollen ellipsoid, banded, with 2 stopples, one row of 
depressed tubercles (scarcely more than patches) on each side of each 
stopple. Capsule nearly 4 in. long, 2-seeded, minutely pubescent to 
the base; placente not rising elastically; seeds smooth, shining, with 
scattered small simple white hairs.—J/usticia depauperata, T. Anders. 
in Journ. Linn, Soe. vii. 40. J. Barteri, T. Anders. in Journ. Linn. 
Soc. vii. 89. J. sewsulcata, Lindau in Engl. Jahrb. xx. 67, and in 
Engl. & Prantl, Pflanzenfam. iv. 3 B. 349. 
Upper Guinea. Sierra Leone: Lomaburn, Scott-Elliot, 5035! interior of 
West Lagos, Rowland! Togoland, Biittner, 202! Lower Niger: Onitsa, Barter, 
592! 1380! 
9. M. scabridum, (. B. Clarke. Leaves often obtuse at the base, 
minutely hairy on the lower face. Bracts margined, sometimes green 
on the back, with scarious green-yellow prominent margins, Seeds with 
more numerous hairs, sometimes densely hairy near the margins ; other- 
wise as M. depauperatum.—Justicia scabrida, S. Moore in J ourn, Bot. 
1880, 310. J. marginata, Lindau in Engl. Jahrb. xx. 73, and in Engl. 
& Prantl, Pflanzenfam. iv. 3 B. 349. 
Lower Guinea. Angola: Pungo Andongo, Welwitsch, 5085! 5092! Malange, 
Biittner, 33! 
Experienced botanists have united this in the herbarium with UM. depauperatum. 
I doubt much if it should be specifically separated. 
10. M. marginatum, (. B. Clarke. Leaves up to 5 by 1} in., 
narrowed at both ends; petioles up to }—4 in. long. Bracts 4 in. long, 
or rather more, very acute, with broad scarious-yellow margins ; other- 
wise as J/, depauperatum.— Nicoteba marginata, Lindau in Engl. Jahrb. 
xxii, 119, 
Upper Guinea. Cameroons: Yaunde, Zenker & Staudt, 556! 
This is put in a different genus from the 3 preceding species by Lindau on the 
ground that there are no tubercles on the pollen, J think it is hardly specifically 
