MR. G. BENTHAM ON AFRICAN ANONACE^. 479 
3. X. parviflora, A. Rich. 1. c. ; omnia X. acntiflora, exceptis petalis brevioribus cras- 
sioribus, in speciminibus nostris lanceolatis semipollicaribus. 
parvifl\ 
Bagroo River (G. Man 
parviflora, A. DC. Mem 
I do not feel at all confident in the real distinction between the above two species and 
the TJnona oxypetala, Dun. Anon. 114, t. 23, or Coelocline oxypetala, A. DC. I. c, which 
must also be a Xylopia, nor in my having correctly identified our specimens ; for t he 
foliage and fruit seem to be the same in all, the differences consisting in the com- 
parative length of the pedicels, and especially in the length of the petals ; but that is 
known to change so much in Anonaceae as the flowering advances, that, until we have 
good specimens in all the different stages of growth from the young bud to the fading 
flower, the question can scarcely be decided. 
11. Clathrospermum, Planch. ; Benth. et Hook. f. Gen. PI. 29. 
A genus hitherto confined to Africa, but consisting only of one well-ascertained species, 
with one or two others differing in some points, but which are as yet only known from 
very incomplete specimens; its position and limits, therefore, cannot be considered as 
settled. The size and shape of the flowers and the fruits are nearly those of Popoicia ; 
but the small number of stamens, either in a single row or so loosely arranged as to 
show the cells on the margin of their flat tops, places our plant in the tribe of Miliusiece, 
where it approaches nearest to Alphonsea, but differs apparently both in the shape of tin 
anthers and in the fruit. Possibly it may hereafter be united with the Asiatic Alpkotisea 
and two or three South-American little-known species that have been described as 
Bocageas but have truly valvate petals, forming a genus, like Xylopia, common to the 
three continents. 
1. C. Vogelii, Planch, in Herb. Hook. ; ramulis foliisque novellis ferrugineo-serieeis, foliis 
obovali- v. elliptico-oblongis subacuminatis adultis glabris, pedicellis ad axillas 
1-3-nis, staminibus 6-9.— Frutex v. arbor parva, ramis debilibus nunc sarmentosis. 
Folia nunc omnia 2-3-pollicaria, nunc pleraque 4-5-pollicaria, membranacea v. 
tenuiter coriacea, subtus glaucescentia v. rubescentia. Pedicelli 3-4 lin. longi, 
bracteis minutis. Alabastra depresso-globosa, ferrugineo-sericea. Petala demum 
aperta v. subpatentia, late ovata, exteriora 3 lin. longa, interiora paullo minora. 
Antherarum vertex planus, horiz ontalis, fere triangularis, ad marginem exteriorem 
loculos 2 parvos ostendens ; filamenta erecta, leviter complanata. Gynsecii carpella 
5-8, villosa, stylo breviter filiformi. Ovula ssepius 2-3 superposita, sed interdum 
solitaria videntur. Carpella matura nunc omnia monospernia, in aliis speciminibus 
breviter oblonga 3 lin. longa et breviter stipitata, in aliis duplo longiora et longius 
stipitata, nunc pleraque duplo triplove longiora 2-3-sperma, inter 
mm 
minus contracta 
Nig. 208, 1. 1 7 
Quorra (Voael) ; in Sierra Leone and on the Niger (Barter) ; on the Bagroo (G. Mann) 
XXIII 
3 
