MR. G. BENTHAM ON AFRICAN ANONACE^. 469 



4. Unona, Linn. f. ; Benth. et Hook. f. Gen. PL 24. 

 The genuine species of this genus hitherto described are all Asiatic or Australian : the 

 two following African ones have been seen in flower only, but in that respect they agree 

 well with some of the Asiatic ones in all essential points. The North American 

 Asiminas might also be well considered as a section of Unona, but m.ore nearly allied to 

 several of the Asiatic than to the African species. 



1. TJ. HiRSUTA, sp. n. ; foliis breviter petiolatis ovali-oblongis obovatisve obtusis basi 



cordatis subtus ramulisque ferrugineo-hirsutis, pedunculis supra medium anguste 

 bracteatis, sej)alis lato-lanceolatis, petalis tomentosis exterioribus ovato-lanceolatis 

 9-11-costatis interioribus minoribus. — Erutex 20-pedalis. Folia 4-6 poll, longa, 

 2-3| poll, lata, petiolo 2-3-lineari hispido fulta, supra glabra, subtus elevato-penni- 

 nervia et transverse reticulato-venosa, pilis ferrugineis prsesertim ad costas 

 hispida. Pedunculi laterales v. subterminales, irregulariter fasciculati, floridi sub- 

 pollicares, rigidi, 1-flori, bractea lanceolata amplectente tomentosa 4-5-lineari. 

 Sepala in floribus suppetentibus 5 lin. longa, vix basi connata, patentia. Petala 

 exteriora 9-10 lin. longa, prope basin fere 6 lin. lata ; interiora multo minora, sed 

 verisimiliter nondum perfecte evoluta. Torus fere planus. Stamina numerosissima, 

 connective ultra loculos crasso planiusculo. Gynsecii carpella plurima, hispida, 

 pauciovulata ; styli elongati, recurvi, intus sulcati. Pructus ignotus. 

 Fernando Po (G. Blann). 



2. U. OBOVATA, sp. n. ; foliis obovatis v. obovato-oblongis membranaceis utrinque ramu- 



lisque molliter pubescentibus, j)edunculis unifloris prope basin bractea orbicu- 

 lato-cordata stipatis, petalis latis demum obtusissimis tomentosis. — Prutex ramulis 

 gracUibus, novellis pilis crispulis tomentosis, annotinis glabratis. Polia obtusa, 

 majora 3-3^ poll, longa, supra medium fere 2 poll, lata, infra m.edium angustiora, 

 basi obtusissima v. cordata, membranacea, in sicco utrinque pallide virentia, pen- 

 niaervia, petiolo 2-3-lineari. Pedunculi laterales v. terminales, solitarii, 1-flori, 

 graciles, per anthesin subpoUicares. Bractea basin pedunculi amplectens, tomen- 

 tella, 5-6 lin. diametro. Sepala lata, obtusissima, 2 lin. lata, tomentella, basi brevis- 

 sime connata. Petala tomentosa, in alabastro acutiuscula et biseriatim valvata, in 

 flore magis evoluto patentia, exteriora 5-6 lin. longa, fere orbiculata, obtusissima, 

 extus subsericeo-pubescentia, tenuissime pluricostata, interiora multo minora. 

 Torus fere planus, hirsutus. Stamina numerosa, connectivo ultra loculos crasso, 

 truncato. Gynsecii carpella plurima, villosa, ovulis 6-8 subbiseriatis ; styli breves, 

 recurvi, glabri. Pructus ignotus. 

 Hot- springs at the foot of Moramballa on the Zambesi {Kirk). 



Amongst Asiatic TJnonce this comes nearest to U. dumosa in the orbicular bracts and 

 obtuse petals ; but the much smaller flowers give it a very different asj)ect. The fruit is 

 unknown ; and the ovules, more evidently arranged in two rows than in most species, 

 indicate that the berries are most probably not moniliform but continuous as in V^. 

 pmmosa, Dalz., and as in the closely allied genus Asimina. 



