OF WEST TfiOPICAL AFEICA. 171 



1. D. RACEMOSA, sp. unica.—Caoiaroou Mountains, 2-3000 feet, Mr. 

 Gustav Mann. 



Arbor glabra, ramulis teretibus. Folia alterna, subcoriacea, petiolata, e 

 basi cuneata elliptica v. ovalia, 6-9 poll, longa, 2^-3^ poll, lata, bre- 

 viter atque obtuse acuminata, ultra medium remote denticulato-ser- 

 rata, utrinque glabra, penninervia, v. basi vix subtripliuervia, nervulis 

 lateralibus subter prominentibus. PetioU 4-6 lin. longi. Stipule 

 parvae deciduae. Flores mediocres 6-8 lin. lati, in racemos axillares 

 multiflores folio diraidio breviores dispositi, bracteati, bracteisminutis, 

 rotundatis, squamiformibus ; pedicelli strieti 3-6 lin. longi, basi arti- 

 culati. 



2. PrKAMIDOCAHPUS. 



Flores liermapliroditi, parvi. Cali/x 3-fidus, lobis rotundatis 

 crassiusculis, sestivatione late imbricatis. Petala 7-10 tubo 

 calycis inserta, lobis ejusdem subsimilia, a calyce gradatim 

 minora (interiora ijiterdum verisimiliter subantherifera). 

 Stamina indefinita (16-25) 2-3-serialia (alabastro ut videtur 

 libera), tubo calycis inserta ; antlicrse basifixa^ ovato-oblongae 

 V. lineari-oblono:fe muticie, rirna submar^T^inali dehiscentes. 



Ovarium liberum, unilocularc ; placentae 4 v. 3, miiltiovulatae ; 

 stylus brevis, crassiusculuSj stigmate breviter 4- v. 3-fido, lobis 



erectis v. recurvis. Fructus coriaceus e basi ventricosa bre- 



viter pyramidatus, tetrngonus v. trigouus, aplce stylo brevi 

 persistente apiculatus, oligo- v. polyspermus, maturitate locu- 

 licide dehiscens. Sernina glabra testa chartaceo-coriacea^per 

 compressionem forma varia ; embryo albumine carnoso bre- 

 vior, cotyledouibus foliaceis latis, basi vix cordatis v. subcor- 

 datis radicula crassiuscula suba?qui]ongis. 



1- P. Blackii, sp. unica.— River Muni, W. Tropical Africa, Mr, Gustav 

 Mann. Aug. 1862 (in bud and ripe fruit). No. 1/75. 



Arbor parva (25-pedalis), omnino glabra. Folia alterna, petiolata, stipu- 

 lata, coriacea, oblongo-ellii)tica, cusjHflata v. breviter acuminata 

 remote et subtiliter denticulata, pennivenia; lamina 6-8 X 2^-3 ^^-poll.; 

 petiolus 5-9-lin. Stipulce caduca;. Flores parvi (verisimiliter 1-3-lin. 

 diametro), alabastro sphierici, in spicas breves \-\ poll, longas, bre- 

 vissime pedunculatas v. sessiles, solitarias v. 2-3-fasciculatas, piperis 

 spieam fructiferam revocantes dispositi; bractese mlnut£e. Fruciu9 

 lateribus medio (sutura dorsali) longitudinaliter carinatis, a basi uA 

 apicem 9-12.1in. ; diametro diagonali 9-15-lin. Sernina 4-5 X 2-3-lin. 



Fyramidocarjpus is one of those perplexing monotypic genera 

 ^nich do not present very near affinity with any recognized 

 group. The small flowers and decidedly perigynous insertion of 



