MR. G. BENTHAM ON AFRICAN ANONACE^. 479 



3. X. PABViFLORA, A. Rich. 1. c. ; omnia X. acntiflorce, exceptis petalis brevioribus cras- 



sioribus, in speciminibus nostris lanceolatis semipollicaribus. 

 Uvaria parviflora, Guill. et Perr. Fl. Seneg. 9, t. 3. Ccelocline parviflora, A. DC. Mem. Anon. 33. 

 On the Niger [Vogel, Barter) ; on the Bagroo River (G. Mann). 



I do not feel at all confident in tlie real distinction between the above two species and 

 the JJnona oxypetala. Dun. Anon. 114, t. 23, or Ccelocline oxijpetala, A. DC. I. c, which 

 must also be a Xylopia, nor in my having correctly identified our specimens ; for the 

 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 Anonacese as the flowering advances, that, until we have 

 good specimens in aU 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. PL 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 Topoioia ; 

 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 Alplionsea, but differs apparently both in the shape of the 

 anthers and in the fruit. Possibly it may hereafter be united with the Asiatic Alphonsea 

 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-sericeis, foliis 

 obovali- V. elliptico-oblongis subacuminatis adultis glabris, pedicelHs ad axillas 

 1-3-nis, staminibus 6-9. — Prutex 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 pauUo minora. 

 Antherarum vertex planus, horizontalis, 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 monosperma, in aliis specuninibus 

 breviter oblonga 3 lin. longa et breviter stipitata, in aliis duplo longiora et longius 

 stipitata, nunc pleraque duplo triplove longiora 2-3-sperma, inter semina plus 

 minus contracta. 



Uvarial Vogelii, Hook. f. Fl. Nig. 208, t. 17- 



On the Quorra {Vogel) ; in Sierra Leone and on the Niger {Barter) ; on the Bagroo (G. Mann). 

 VOL. XXIII. 3 T 



