Rhinacanthus. | XCVII1l, ACANTHACEX (CLARKE). 225 
Engl. & Prantl, Pflanzenfam. iv. 3 B. 330, and in Engl. Pf. Ost-Afr. 
}, 871. 
Upper Guinea. Sierra Leone: Scarcies River, Scott-Elliot, 4428! and with- 
out precise locality, Afzelius ! Cameroons: Batanga, Bates, 189! Bipinde, 1000 ft., 
Zenker, 1260! Victoria, Preuss, 1219! 1384! - 
Nile Land. British East Africa: 40-60 miles from the Mombasa coast, 
Johnston! Nyika country near Mombasa, Wakefield! Wanga, Smith! Ukamba, 
Hildebrandt, 2628! Duruma, Hildebrandt, 2346! 
Lower Guinea. Gaboon: on the coast, Middleton! Gaboon River, Mann, 
1015! Como River, Bates, 458! Munda; Sibange Farm, Bittner, 358! Soyauz, 
198B! Angola, Welwitsch, 5010! 5191! 5204! 
Mozamb. Dist. German East Africa: Usagara; Mpwapwa, Stuhlmann, 249! 
Usambara; Duga, Holst, 3289! Masheua, Holst, 8782! and Nyika Steppe, Holst, 
39024! Portuguese East Africa: base of Morambala Mountain, Kirk! Sena, 
Carvalho! British Central Africa: Nyasaland, Buchanan, 863! Shire Highlands, 
Buchanan, 72! by the River Ruo, south of Blantyre, Scott-Elliot, 8598! Mount 
Mlanje, Scott-Elliot, 8655! near Blantyre, Last! Zomba, 3000 ft., Whyte! and 
without precise locality, Buchanan, 863! Matabeleland; banks of the River 
Matengwe, Holub, 1285! 1286! 
I am unable to divide this widespread species into two, The leafy-panicled 
form has rather smaller flowers, and T. Anderson at first tried to make it a separate 
species. The form with a large panicle destitute of floral leaves (Pseuderanthemum 
dichotomum, Lindau= Rhinacanthus gracilis, Klotzsch) is the common form in India, 
the original Justicia Nasuta of Linneus. 
2. R. subcaudatus, C. B. Clarke. Leaves of each pair unequal ; 
one often only 2-4 the length of the other, round-ovate. Corolla-tube 
about 4 in. long, slender; posticous lip ovate-oblong. Lower anther- 
cell with a short white tail. Capsule } in. long, and seeds as of 2. com- 
munis but smaller. 
Upper Guinea. Sierra Leone: near the Scarcies River, at Wallia, Scott- 
Elliot, 4276! and near Sasseni, Scott-Elliot, 4428! and without precise locality, 
Afzelius ! 
“ Kondoi (native name), a medicine for indigestion ” (Scott-Elliot). 
3. R. rotundifolius, (. B. Clarke. Branches 6-angular, pubescent. 
Lower leaves 2 by 14 in., glabrate, base rounded or subcordate, nerves 
prominent, finely reticulated on the under surface; cystoliths many on 
both surfaces ; petiole } in. long. Panicle compound, with many floral 
leaves (i.e., cymes mainly axillary); flower clusters loose, or cymes 
3-} in. long, dense. Corolla yellowish-white (Zhomas); tube 1} in. 
long. Capsule 2-3 in. long, pubescent, 4-seeded ; seeds tuberculate, 
black. 
Wile Land. British East Africa: Tana River, Thomas, 7! 89! 
Closely allied to R. communis, Nees, but differs from all forms of that species by 
the very broad ronnded base to the leaves. 
Imperfectly known species. 
4. R. ndorensis, Schweinf. in Hohnel, Zum Rudolph-See uw. 
Stephanie-See, Sonderabdr. 7. Small shrub, with the general aspect of 
VOL. V. Q 
