55] Apocynaceae. 301 



var. d' angustifolia (Hallier f. sub L. scandens var. ang. Engl, pro spec.) Stapf 

 1. c. — Usambara. 

 Landolphia oxcarim.se, Beauv. var. ß rubiginosa Stapf 1. c. p. 50. — Kamerun. 



var. y tomentella Stapf 1. c. p. 51.*) — Brit. Ostafrika. 

 L. Dewevrei Stapf 1. c. p. 52. — Kongostaat. 



L. Kirkii I)yer var. ß dondeensis Stapf 1. c. p. 66. — Deutsch Ostafrika. 

 L. pyriformis (Pierre sub Ancylobothrys) Stapf 1. c. p. 60. — Nieder-Guinea. 

 L. (Jasminochila) ugandensis Stapf 1. c. p. 689. — Uganda. 

 L. (Eu-Land.) Davei Stapf 1. c. p. 590. — ibid. 

 Macrosiphonia pinifolia (St. Hil. sub Echites, Müll. Arg. pro var. sub Macr. vert.) 



Malme 1. c. p. 257. — Paraguay, wie folg. 

 M. pin. var. intermedia (Müll. Arg. pro var. sub Macr. vert-) Malme 1. c. p. 257. 

 M. macrosiphon (Torrey sub Echites) H. Heller 1. c. p. 2 = M. Berlandieri 



A. Gray. 

 Motavdra pyramidalis Stapf 1. c. p. 225 = Jkf. guineensis Hiern. — Angola. 

 ünänotis glandulosa Stapf 1. c. pp. 22l et 611. — Kamerun. 

 0. Batesii Stapf 1. c. — ibid. 



0. thyrsiflora (K- Scbum. MS.) Stapf 1. c. p. 612. — ibid. 

 Pleiocarpa salicifolia Stapf 1. c. p. 99. — Sierra Leone. 

 P. pycnantha (K. Scbum. sub Hunteria) Stapf 1. c. — Uganda. 

 P. micrantha Stapf 1. c. p. 100. — Goldküste. 

 P. flavescens Stapf 1. c. p. 101. — ibid. 



P. breviloba (Hallier f. sub Hunteria) Stapf 1. c. p. 102. — Franz. Kongo. 

 P. camerunensis (Hallier sub H) Stapf 1. c. — Kamerun. 

 P. microcarpa Stapf 1. c. = H- pycnantha Hallier f. — Kongostaat. 

 Pleioceras Afzelii (K. Schum. sub Wrightia) Stapf 1. c. p. 166. — Sierra Leone (?) 

 P. Zenkcri Stapf 1. c. — Kamerun. 

 P. Gilletii Stapf 1. c. p. 167. — Nieder-Kongo. 

 P. Whytei Stapf 1. c p. 6C4. — Liberia. 

 Polyadoa nov. gen. Stapf in This.-Dyer, Flora Trop. Afric. IV. 1 (1904). p. 103 



(= „Apocynacea, quoad genus dubia" Stapf in Journ. Linn. Soc. XXX. 



90). — Zu den Plumeriotdeae neben Hunteria gestellt. 

 P. umbellata (K Schum. sub Carpodinus Hallier f. sub Hunteria) Stapf 1. c. — 



Ober-Guinea. 

 P. Elliottii Stapf 1. c. p. 104. — Sierra Leone. 

 Pterotaberna nov. gen. Stapf in This.-Dyer, Flora Trop. Air. IV. 1 (1904). p. 125. 



— Eine endemische Art. „Very similar to some Indian species hitherto 

 referred to Tabernaemontana, e. g., T. peduncxdaris or T. malaccana, but 

 differing in the Stigma, which is remote from the anthers, capitate and 

 exapiculate, and in the winged, apparently indehiscent fruits. It is 

 distinguished from Tabernaemontana proper in the structure of the anthers. 

 the stigma and the fruit. Tabernanthe. which is very simiJar in habit, 

 differs not only in the structure of the stamens and the stigma, but also 

 in having syncarpous ovaries and fruits." 



P. inconspicua (Stapf sub Tabernaemontana) Stapf 1. c. = T. trialata Pierre MS. 



— Guinea. 



Pycnobotrya multiflora (K. Schum. MS.) Stapf 1. c. p. 203. — Kamerun. 

 Uauwolfia sessilifolia Sp. le Moore in Journ. of Bot. XL1I (1904). p. 103. — 

 Paraguay (Rob. n. 494). 



*) Umfangreiche Synonymik siehe 1. c. 



