6 SOUTH NIGERIAN PLANTS 
carpellis 15-20 extrinsecus cinereo-tomentosis ovulis pluribus 
ventrale biseriatim dispositis. (Pl. 2.) 
Oban; n. 1496. South Nigeria, Dennett, n. 44 (Herb. Kew.) 
Leaves 9-14 cm. long, 4:5-6 cm. broad; lateral nerves not - 
conspicuous, glabrous except the midrib; petioles 3-4 mm. long. 
Peduncles short. Petals 8, uniseriately valvate, 10-11 mm. long. 
Stamens about 1 mm. long. 
A very curious and interesting tree, at once distinguished by the 
2 rarely 3 sepals, the 3 rather thick, concave, valvate petals, the 
numerous small stamens with the connective very slightly produced 
and the 15-20 carpels with the ovules biseriately arranged. 
Named in honour of Mr. R. E. Dennett, who first collected this 
tree in Southern Nigeria and whose specimens are in the Kew 
Herbarium. 
The alliance of this genus is with Thonnera, but the flowers are 
hermaphrodite and not on long peduncles, and the receptacle is a 
different shape. Mr. H. N. Ridley, who kindly examined this plant, 
considers that it should be placed in the Group Xylopieæ next to 
Melodorum. It is also allied to certain rather abnormal species of 
Anona of the Sect. Atte, especially A. echinata Dunal. 
VIOLACEA. 
 Alsodeia crassifolia Bak. fil. sp. nov. Frutex ramulis 
teretibus; foliorum petiolo mediocri, lamina papyraceo-coriacea 
glabra magna ellipiica vel oblongo-ovata vel ovato-lanceolata 
apice acuminata basi late cuneata margine integro nervis | 
lateralibus 10-12 ante marginem arcu intramarginali conjunctis 
superne nitidis subtus pallidioribus ; floribus racemoso-paniculatis, 
inflorescentiis petiolo longioribus; bracteis lanceolatis ; sepalis 
ovatis concavis petalis brevioribus ; petalis oblongis margine 
ciliatis ; staminum tubo quam antheris breviori  connectivo ultra 
thecas producto; orario glabro stylo tereti glabro columnari ; 
capsula triloculari. 
Oban; n. 1260. is 
Shrub 2-3 metres high (fide Mrs. Talbot). Leaves 15-27 em. long, 
6-10°5 em. broad; petioles 2-5-4 cm. long. Panicles 2°5-6 cm. 
long. Sepals + 3 mm. long. Petals + 4-5 mm. long. Staminal tube 
short; filaments short. Anthers appendaged; connective produced 
into an ovate-triangular appendage. Capsule 20-92 mm. long. 
This is probably identical with the plant colleeted by Mann in 
the Gaboon and referred to A. Welwitschii Oliver in the Flora of 
Tropical Africa. It differs in several points from Welwitsch, n. 882, 
from Golungo Alto. 
[Petals dull yellow.— P. A. T. 
Alsodeia obanensis Bak. fil. Sp. nov. Arbustula ramulis 
cortice cinereo tectis; foliorum petiolo mediocri, lamina membra- 
nacea apice acuminata basi in petiolum alatum angustata nervis 
lateralibus utrinque 9-15 ante marginem arcu intramarginali 
