318 Floristik und Systematik der Phanerogamen. 



Echiloideae correspond respectivily to the Tabernaemontaneae and 

 Echilideae of Bentham. Both form very homogenous groups. The 

 rest of the genera, which are much less obviously related, are placed in 

 Schuman's tribe Plumerioideae, excluding his Tabernaemontaninae. 

 The incongruous assortment of species placed in the old genus Tabernae- 

 montana, have been rearranged in numerous genera, as already proposed 

 by Pierre and Schumann. The species now constituting the genus 

 Tabernaemontana as regarded by the author, are confined to the 

 New World. 



The following new genera are described: Vahadenia, 1 species, V. 

 Laurentii (Lower Congo, Congo Free State), Polyadoa, 2 species, P. 

 umbellata (Lagos), P. Elliotii (Sierra Leone), Pterotaberna, 1 species, 

 P. inconspicua (Cameroons, Gaboon), Ervatamia [Tabernaemontana, 

 sect. Ervatamia A. DC] about 30 species in Asia, Australia, Polynesia 

 Madagascar, E. coronaria is naturalised in Sierra Leone, Callichilia 

 'Tabernaemontana Benth. et Hook., in part], 5 spp., C. monopodialis 

 T. monopodialis K. Schum.], C. Nannii (Cameroons), C. inacqualis 

 T. inaequalis Pierre mss.], (Gaboon), C. subsessilis [T. subsessilis Benth.], 

 C. Barteri [T. Barteri Hook. f.]. 



The new species are: Landolphia kilimandjarica [Clitandra 

 kilimandjarica Warb.], L. Buchananii [C. Buchanani Halber f.], L. 

 Cameronis (British Central Africa), L. leonensis (Sierra Leone), L. robusta 

 [Ancylobothrys robusta Pierre], L. Tayloris (British East Africa), L. 

 pachyphylla (British Central Africa), L. ferruginea [L. scandens var. 

 ferruginea Halber f.], L. Dewevrei (Congo Free State), L. pyriformis 

 [Ancylobothrys pyriformis Pierre]. 



Clitandra parvifolia [Cylindropsis parvifolia Pierre], C. togolana 

 [Cylindropsis togolana Halber f.], C. alba (Gold Coast), C. Slaudtii [C. 

 visciflua Halber f.], Carpodinus landolphioid.es [Clitandra landolphioides 

 Halber f.], Carissa tetramera [Arduina tetramera Sacleux], Pleiocarpa 

 salicifolia (Sierra Leone), P. pycnantha [Hunteria pycnantha K. Schum.], 

 P. micrantha (Gold Coast), P. flavescens (Gold Coast), P. breviloba 

 [Hunteria breviloba Halber f.], P. camerunensis [Hunteria camerunensis 

 Halber f.], P. microcarpa [Hunteria pycnantha Halber f.], Diplorhynchus 

 angustifolia (East Tropical Africa). 



Rauwolfia Welwitschii [R. caffra var. natalensis Stapf], R. obliqui- 

 nervis [R. ochrosioides K. Schum.], R. Goetzii (German East Africa), R. 

 Cumminsii (Ashanti), R. Volkensii [Tabernaemontana Volkensii K. Schum.], 

 Tabernanthe Bocca [T. Iboga Oliver partly], T. subsessilis [T. Iboga 

 Oliver partly], T. Mannii [f. Iboga Oliver partly], Gabunia psorocarpa 

 Pierre mss. (Gaboon), G. brachypoda [Tabernaemontana brachypoda 

 K. Schum.], G. latifolia [T. eglandulosa Stapf], G. longiflora (Fernando 

 Po), G. glandulosa (Sierra Leone), G. eglandulosa [Tabernaemontana 

 eglandulosa Stapf], G. crispiflora [T. crispiflora K. Schum.]. 



Conopharingia longiflora [Tabernaemontana longiflora Benth.], C. 

 contorta [T. contorta Stapf], C. Smithii [T. Sniitthii] , C. Thonneri [T. 

 Thonneri De Wild, and Durand], C. durissima [T. durissima Stapf], C. 

 jol/yana [T. jollyana Pierre mss.], C. crassa [T. crassa Benth.], C. 

 Cumminsii [T. crassa (?) Cummins], C. pachysiphon [T. pachysiphon 

 Stapf], C. Holstii [T. Holstii Engl.], C. angolensis [T. angolensis Stapf], 

 C. stapf iana [T. stapf iana Britten], C. Johnston ii (Uganda), G. steno- 

 siphon fT. stenosiphon Stapf], C. brachyantha [T. brachyantha Stapf], 

 C. usambarensis [T. usambarensis Engl.], C.(f) penduliflora [T. penduli- 

 flora K. Schum.], C. elegans [T. elegans Stapf]. 



Voacanga spectabilis Stapf, [V. africana, V. angolensis Stapf in 

 part.], V. lutescens [V. africana Stapf in part.], V. chalotiana Pierre mss. 

 (French Congo), V. psilocalyx (Gaboon), V. Zenkeri (Cameroons), 

 Holarrhena Wtilfsbergii [H. africana Wulfsberg], Pleioceras Afzelii 

 [Wrightia Afzelii K. Schum.], P. Zenkeri (Cameroons), P. Gilletii (Lower 

 Congo), Strophanthus verrucosus [S. petersianus var. grandiflorus N. E. Br.]. 



H. H. W. Pearson. 



