74 SOUTH NIGERIAN PLANTS 
Crossandrella Dusenii S. Moore comb. nov, Syn. Pseudo- 
blepharis Dusenii Lindau, Acanthus Dusenii Clarke, Crossandrella 
lawispicata Clarke. The Uganda plant which served as the type 
of Clarke's Crossandrella laxispicata is identical in every respect 
with the plant from the Cameroons. 
Adhatoda Buchholzii S. Moore comb. nov. (Duvernoia Buch- 
holzii Lindau). Some of the specimens agree with Lindau’s 
description, which, the species being unrepresented in this 
country, is all one has to go upon. Clarke’s (Flora Trop. Afr. 
v. 223) reference of D. Buchholzii to Adhatoda maculata Clarke 
(Justicia maculata T. And.) is obviously a mistake, for, to take 
only one point, A. maculata has, as Clarke says correctly, lanceo- 
late bracts, while Lindau describes the bracts of his plant as 
ovate. Moreover in general appearance the two are quite unlike. 
The matter has become further confused by Zenker's n. 2229, a 
plant with large ovate bracteoles, having been distributed as 
* Duvernoia Buchholzii Lindau," whereas Lindau says his D. 
Buchholzii has the bracteoles minute (winzig). Furthermore, as 
if this were not enough, Zenker n. 2755, a plant with large sub- 
orbicular bracts, has been sent out as “Duvernoia maculata 
(T. And.) Lindau.” 
Speeimens named as above show much variety in their foliage 
and braets. Some agree perfectly in these respects with Lindau's 
description; others have short and broad leaves rotundate at base and 
short stalks, and from these leaves there may be a passage into sessile 
sometimes amplexicaul leaves 2:5-5 cm. in length, the uppermost 
forming a transition to the oldest bracts. The largest of these latter 
organs may be as much as 2 cm. in breadth, thus greatly exceeding 
the dimension (7 mm.) given by Lindau. But as these variations may 
occur on one and the same individual, there can be no question of 
specifie divergence here. The plant is thrown into rivers with the 
object of poisoning fish. — 
Afromendoneia iodioides S. Moore sp. nov. Frutex scandens 
ramis distanter foliosis pilis fulvis subsparsim hispidis; foliis 
amplis petiolatis late ovatis apice subito cuspidulato-attenuatis ipso 
obtusis coriaceis supra glabris subtus presertim in nervis sub- 
sparsim fulvo-hispidis ; floribus in axillis paucis pedicellis bracteolas 
circiter aequantibus insidentibus ; bracteolis cymbiformibus 
obtusis triente inferiori connatis ut pedicelli dense fulvo-hirsutis ; 
ealycis brevissimi glabri ore undulato ; corollae tubo ex bracteolis 
vix eminentibus superne gradatim amplificato glabro lobis late 
obovatis obtusissimis tubo brevioribus; staminwm superiorum 
antheris obtusis inferiorum apice appendice brevi curvato onustis ; 
disco maxime prominente crassissimo ; ovario subsphaeroideo glabro 
1-loculo ; stylo piloso ; ovulis binis. 
Oban; n. 388. 
Leaves 9-12 cm. long, 6:5-9 cm. broad, when dry greyish and 
